Propanoic acid, 2-methyl-
- Formula: C4H8O2
- Molecular weight: 88.1051
- IUPAC Standard InChIKey: KQNPFQTWMSNSAP-UHFFFAOYSA-N
- CAS Registry Number: 79-31-2
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Isobutyric acid; α-Methylpropanoic acid; α-Methylpropionic acid; Dimethylacetic acid; Isobutanoic acid; Isopropylformic acid; 2-Methylpropanoic acid; 2-Methylpropionic acid; iso-C3H7COOH; Acetic acid, dimethyl-; Cenex RP b2; Propionic acid, 2-methyl-; Tenox IBP 2; Kyselina isomaselna; UN 2529; Methylpropanoic acid; Methylpropionic acid; 2-Propanecarboxylic acid; i-Butyric acid; NSC 62780
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Reaction thermochemistry data
Go To: Top, Gas phase ion energetics data, Ion clustering data, Gas Chromatography, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
By formula: I- + C4H8O2 = (I- • C4H8O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 16.7 ± 1.0 | kcal/mol | TDAs | Caldwell and Kebarle, 1984 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 20.5 | cal/mol*K | PHPMS | Caldwell and Kebarle, 1984 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 10.6 ± 1.0 | kcal/mol | TDAs | Caldwell and Kebarle, 1984 | gas phase; B |
By formula: C4H7O2- + C4H8O2 = (C4H7O2- • C4H8O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 29.9 ± 1.0 | kcal/mol | N/A | Meot-Ner and Sieck, 1986 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 33.4 | cal/mol*K | PHPMS | Meot-Ner and Sieck, 1986 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 19.9 ± 1.6 | kcal/mol | TDAs | Meot-Ner and Sieck, 1986 | gas phase; B |
By formula: C4H7O2- + H+ = C4H8O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 346.0 ± 2.1 | kcal/mol | G+TS | Caldwell, Renneboog, et al., 1989 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 339.0 ± 2.0 | kcal/mol | IMRE | Caldwell, Renneboog, et al., 1989 | gas phase; B |
By formula: H2 + C4H6O2 = C4H8O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -28.2 ± 0.3 | kcal/mol | Chyd | Skinner and Snelson, 1959 | liquid phase; solvent: Acetic acid; ALS |
By formula: H2O + C8H14O3 = 2C4H8O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -14.59 | kcal/mol | Cm | Conn, Kistiakowsky, et al., 1942 | liquid phase; Heat of hydrolysis at 303 K; ALS |
By formula: C5H10O2 + H2O = CH4O + C4H8O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -14.72 ± 0.24 | kcal/mol | Eqk | Guthrie and Cullimore, 1980 | liquid phase; ALS |
Gas phase ion energetics data
Go To: Top, Reaction thermochemistry data, Ion clustering data, Gas Chromatography, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data evaluated as indicated in comments:
L - Sharon G. Lias
Data compiled as indicated in comments:
B - John E. Bartmess
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
LL - Sharon G. Lias and Joel F. Liebman
View reactions leading to C4H8O2+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 10.24 ± 0.12 | eV | N/A | N/A | L |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
10.12 | EI | Holmes and Lossing, 1980 | LLK |
10.329 ± 0.005 | PI | Watanabe, Yokoyama, et al., 1974 | LLK |
10.33 | PE | Watanabe, Yokoyama, et al., 1973 | LLK |
10.33 ± 0.03 | PE | Thomas, 1972 | LLK |
10.02 ± 0.05 | PI | Watanabe, Nakayama, et al., 1962 | RDSH |
10.30 | PE | Sustmann and Trill, 1972 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
CHO2+ | 11.28 | C3H7 | EI | Holmes, Lossing, et al., 1991 | LL |
De-protonation reactions
By formula: C4H7O2- + H+ = C4H8O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 346.0 ± 2.1 | kcal/mol | G+TS | Caldwell, Renneboog, et al., 1989 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 339.0 ± 2.0 | kcal/mol | IMRE | Caldwell, Renneboog, et al., 1989 | gas phase; B |
Ion clustering data
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Gas Chromatography, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.
Clustering reactions
By formula: C4H7O2- + C4H8O2 = (C4H7O2- • C4H8O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 29.9 ± 1.0 | kcal/mol | N/A | Meot-Ner and Sieck, 1986 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 33.4 | cal/mol*K | PHPMS | Meot-Ner and Sieck, 1986 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 19.9 ± 1.6 | kcal/mol | TDAs | Meot-Ner and Sieck, 1986 | gas phase; B |
By formula: I- + C4H8O2 = (I- • C4H8O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 16.7 ± 1.0 | kcal/mol | TDAs | Caldwell and Kebarle, 1984 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 20.5 | cal/mol*K | PHPMS | Caldwell and Kebarle, 1984 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 10.6 ± 1.0 | kcal/mol | TDAs | Caldwell and Kebarle, 1984 | gas phase; B |
Gas Chromatography
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Kovats' RI, polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-Wax | 1574. | Umano, Shoji, et al., 1986 | N2, 60. C @ 10. min, 2. K/min; Column length: 30. m; Column diameter: 0.25 mm; Tend: 200. C |
Van Den Dool and Kratz RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-5 | 792. | Colahan-Sederstrom and Peterson, 2005 | 30. m/0.25 mm/0.25 μm, N2, 40. C @ 2. min, 5. K/min, 230. C @ 6. min |
Capillary | HP-5MS | 785. | Pino, Mesa, et al., 2005 | 30. m/0.25 mm/0.25 μm, He, 60. C @ 2. min, 4. K/min, 250. C @ 20. min |
Capillary | DB-5 | 790. | Wu, Zorn, et al., 2005 | 30. m/0.32 mm/0.25 μm, He, 40. C @ 2. min, 5. K/min, 250. C @ 5. min |
Capillary | DB-5 | 793. | Wu, Zorn, et al., 2005 | 30. m/0.32 mm/0.25 μm, He, 40. C @ 2. min, 5. K/min, 250. C @ 5. min |
Capillary | CP-Sil 8CB-MS | 765. | Bruna, Hierro, et al., 2003 | 60. m/0.25 mm/0.25 μm, 40. C @ 2. min, 4. K/min, 280. C @ 5. min |
Capillary | CP Sil 5 CB | 732. | Pino, Marbot, et al., 2001 | 50. m/0.32 mm/0.4 μm, He, 60. C @ 10. min, 3. K/min, 280. C @ 60. min |
Capillary | DB-1 | 723. | Bartelt, 1997 | 30. m/0.32 mm/5. μm, He, 35. C @ 1. min, 10. K/min; Tend: 270. C |
Van Den Dool and Kratz RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | VF-5MS | 738. | Tretyakov, 2011 | 30. m/0.25 mm/0.25 μm, He; Program: Multi-step temperature program; T(initial)=60C; T(final)=270C |
Capillary | DB-1 | 752. | Place, Imhof, et al., 2003 | 60. m/0.32 mm/1. μm, He; Program: 35C(5min) => 10C/min => 45C (5min) => 5C/min => 250C (10min) |
Capillary | SE-54 | 793. | Zimmermann and Schieberle, 2000 | 30. m/0.25 mm/0.25 μm, He; Program: 35C(2min) => 40C/min => 60C => 6C/min => 180C 20C/min => 240C(10min) |
Capillary | SE-54 | 789. | Münch, Hofmann, et al., 1997 | 30. m/0.32 mm/0.25 μm, He; Program: 40C (2min) => 40C/min => 50C (2min) => 240C (10min) |
Van Den Dool and Kratz RI, polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-Wax | 1581. | Botelho, Caldeira, et al., 2007 | 30. m/0.25 mm/0.25 μm, He, 50. C @ 2. min, 3.5 K/min, 180. C @ 25. min |
Capillary | Innowax | 1584. | Botelho, Caldeira, et al., 2007 | 30. m/0.25 mm/0.25 μm, H2, 45. C @ 5. min, 3.5 K/min, 210. C @ 20. min |
Capillary | HP-Innowax | 1544. | Quijano, Linares, et al., 2007 | 60. m/0.25 mm/0.25 μm, He, 50. C @ 4. min, 4. K/min, 220. C @ 10. min |
Capillary | DB-Wax | 1544. | Osorio, Alarcon, et al., 2006 | 30. m/0.25 mm/0.25 μm, He, 50. C @ 4. min, 4. K/min, 220. C @ 20. min |
Capillary | LM-120 | 1585. | Pinto, Guedes, et al., 2006 | 50. m/0.25 mm/0.5 μm, 3. K/min, 240. C @ 30. min; Tstart: 50. C |
Capillary | OV-351 | 1539. | Bonvehí, 2005 | 50. m/0.32 mm/0.2 μm, He, 5. K/min; Tstart: 60. C; Tend: 220. C |
Capillary | DB-FFAP | 1554. | Colahan-Sederstrom and Peterson, 2005 | 30. m/0.25 mm/0.25 μm, N2, 40. C @ 2. min, 5. K/min, 230. C @ 6. min |
Capillary | Stabilwax | 1588. | Fang and Qian, 2005 | 30. m/0.32 mm/1. μm, N2, 40. C @ 2. min, 4. K/min, 230. C @ 10. min |
Capillary | DB-Wax | 1587. | Malliaa, Fernandez-Garcia, et al., 2005 | 60. m/0.32 mm/1. μm, He, 45. C @ 1. min, 5. K/min, 250. C @ 12. min |
Capillary | Carbowax 20M | 1549. | Verzera, Campisi, et al., 2005 | 60. m/0.25 mm/0.25 μm, He, 45. C @ 0.17 min, 2. K/min; Tend: 250. C |
Capillary | DB-Wax | 1588. | Wu, Zorn, et al., 2005 | 30. m/0.32 mm/0.25 μm, H2, 40. C @ 2. min, 5. K/min, 250. C @ 5. min |
Capillary | ZB-Wax | 1579. | Wu, Zorn, et al., 2005 | 30. m/0.32 mm/0.25 μm, He, 40. C @ 2. min, 5. K/min, 250. C @ 5. min |
Capillary | ZB-Wax | 1585. | Wu, Zorn, et al., 2005 | 30. m/0.32 mm/0.25 μm, He, 40. C @ 2. min, 5. K/min, 250. C @ 5. min |
Capillary | DB-Wax | 1520. | Avsar, Karagul-Yuceer, et al., 2004 | 30. m/0.25 mm/0.25 μm, 40. C @ 5. min, 10. K/min, 200. C @ 15. min |
Capillary | ZB-Wax | 1572. | Ledauphin, Saint-Clair, et al., 2004 | 30. m/0.25 mm/0.15 μm, He, 35. C @ 10. min, 1.8 K/min, 220. C @ 10. min |
Capillary | DB-Wax | 1580. | Mahajan, Goddik, et al., 2004 | 30. m/0.25 mm/0.5 μm, He, 40. C @ 2. min, 5. K/min, 230. C @ 10. min |
Capillary | DB-Wax Etr | 1556. | Ménager, Jost, et al., 2004 | 30. m/0.25 mm/0.25 μm, He, 40. C @ 3. min, 3. K/min, 245. C @ 20. min |
Capillary | DB-Wax | 1555. | Aubert, Günata, et al., 2003 | 30. m/0.32 mm/0.5 μm, 40. C @ 3. min, 2. K/min, 245. C @ 20. min |
Capillary | DB-FFAP | 1520. | Karagül-Yüceer, Cadwallader, et al., 2002 | 30. m/0.25 mm/0.25 μm, 35. C @ 5. min, 10. K/min, 200. C @ 30. min |
Capillary | DB-FFAP | 1547. | Karagül-Yüceer, Cadwallader, et al., 2002 | 30. m/0.25 mm/0.25 μm, 35. C @ 5. min, 10. K/min, 200. C @ 30. min |
Capillary | Supelcowax-10 | 1571. | Moreira, Trugo, et al., 2002 | 30. m/0.25 mm/0.25 μm, He, 3. K/min, 230. C @ 30. min; Tstart: 50. C |
Capillary | DB-Wax | 1556. | Karagül-Yüceer, Drake, et al., 2001 | 30. m/0.25 mm/0.25 μm, 35. C @ 5. min, 10. K/min, 200. C @ 30. min |
Capillary | AT-Wax | 1556. | Pino, Marbot, et al., 2001 | 60. m/0.32 mm/0.25 μm, He, 65. C @ 10. min, 2. K/min, 250. C @ 60. min |
Capillary | CP-Wax 52CB | 1549. | Verzera, Campisi, et al., 2001 | 60. m/0.25 mm/0.25 μm, He, 45. C @ 0.17 min, 2. K/min; Tend: 250. C |
Capillary | DB-FFAP | 1573. | Charles, Martin, et al., 2000 | 30. m/0.32 mm/0.25 μm, H2, 40. C @ 2. min, 5. K/min; Tend: 240. C |
Capillary | DB-Wax | 1575. | Moio, Piombino, et al., 2000 | 30. m/0.32 mm/1. μm, H2, 3. K/min; Tstart: 40. C; Tend: 210. C |
Capillary | DB-Wax | 1576. | Moio, Piombino, et al., 2000 | 30. m/0.32 mm/1. μm, H2, 3. K/min; Tstart: 40. C; Tend: 210. C |
Capillary | DB-Wax | 1564. | Cha, Kim, et al., 1998 | 60. m/0.25 mm/0.25 μm, 40. C @ 5. min, 3. K/min, 200. C @ 60. min |
Capillary | DB-Wax | 1575. | Moio and Addeo, 1998 | 30. m/0.32 mm/1. μm, H2, 3. K/min; Tstart: 40. C; Tend: 210. C |
Capillary | DB-Wax | 1576. | Moio and Addeo, 1998 | 30. m/0.32 mm/1. μm, H2, 3. K/min; Tstart: 40. C; Tend: 210. C |
Capillary | DB-Wax | 1575. | Moio and Addeo, 1998 | 30. m/0.32 mm/1. μm, H2, 3. K/min; Tstart: 40. C; Tend: 210. C |
Capillary | FFAP | 1567. | Ott, Fay, et al., 1997 | 30. m/0.25 mm/0.25 μm, He, 20. C @ 1. min, 4. K/min, 200. C @ 1. min |
Capillary | DB-Wax | 1574. | Shimoda, Peralta, et al., 1996 | 60. m/0.25 mm/0.25 μm, He, 3. K/min; Tstart: 50. C; Tend: 230. C |
Capillary | DB-Wax | 1571. | Shimoda, Wu, et al., 1996 | 60. m/0.25 mm/0.25 μm, He, 3. K/min; Tstart: 50. C; Tend: 230. C |
Van Den Dool and Kratz RI, polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | FFAP | 1558. | Frauendorfer and Schieberle, 2006 | 25. m/0.32 mm/0.2 μm, He; Program: 40C(1min) => 40C/min => 60C(1min) => 6C/min => 180C => 15C/min => 240C |
Capillary | DB-Wax | 1584. | Selli, Canbas, et al., 2006 | 30. m/0.32 mm/0.5 μm, H2; Program: 60C(3min) => 2C/min => 220C => 3C/min => 245C (20min) |
Capillary | DB-Wax | 1584. | Selli, Canbas, et al., 2006, 2 | 30. m/0.32 mm/0.5 μm, H2; Program: 60C(3min) => 2C/min => 220C => 3C/min => 245C(20min) |
Capillary | FFAP | 1595. | Ranau and Steinhart, 2005 | 60. m/0.25 mm/0.5 μm, He; Program: 50C(3min) => 3C/min => 100C => 10C/min => 220C (13.5min) |
Capillary | DB-Wax | 1556. | Ferrari, Lablanquie, et al., 2004 | 60. m/0.25 mm/0.25 μm, He; Program: 35C(0.7min) => 20C/min => 70C => 4C/min => 240C |
Capillary | DB-Wax | 1584. | Selli, Cabaroglu, et al., 2004 | 30. m/0.32 mm/0.5 μm, H2; Program: 60C(3min) => 2C/min => 220C => 3C/min => 245C (20min) |
Capillary | Carbowax 20M | 1608. | Boido, Lloret, et al., 2003 | 25. m/0.32 mm/0.25 μm, H2; Program: 40C (8min) => 3C/min => 180C => 20C/min => 230C |
Capillary | DB-Wax | 1553. | Cantergiani, Brevard, et al., 2001 | 30. m/0.25 mm/0.25 μm; Program: 20C(30s) => fast => 60C => 4C/min => 220C (20min) |
Capillary | DB-FFAP | 1562. | Rychlik and Bosset, 2001 | 30. m/0.32 mm/0.25 μm, He; Program: 35C(2min) => 40C/min => 60C (2min) => 5C/min => 240C |
Capillary | DB-Wax | 1570. | Ziegleder, 2001 | He; Column length: 60. m; Column diameter: 0.25 mm; Program: 45C(4min) => 30C/min => 60C (5min) => 3C/min => 220C (40min) |
Capillary | FFAP | 1571. | Zimmermann and Schieberle, 2000 | 30. m/0.25 mm/0.25 μm, He; Program: 35C(2min) => 40C/min => 60C => 6C/min => 180C 20C/min => 240C(10min) |
Capillary | FFAP | 1565. | Kubícková and Grosch, 1997 | 30. m/0.32 mm/0.25 μm; Program: 35C (2min) => 40C/min => 60C (2min) => 6C/min => 230C (10min) |
Capillary | FFAP | 1548. | Münch, Hofmann, et al., 1997 | 30. m/0.32 mm/0.25 μm, He; Program: 40C (2min) => 40C/min => 60C (2min) => 240C (10min) |
Capillary | FFAP | 1578. | Yasuhara, 1987 | 50. m/0.25 mm/0.25 μm, He; Program: 20C (5min) => 2C/min => 70C => 4C/min => 210C |
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | VF-5 MS | 774. | Leffingwell and Alford, 2011 | 60. m/0.32 mm/0.25 μm, Helium, 2. K/min, 260. C @ 28. min; Tstart: 30. C |
Capillary | VF-5 MS | 779. | Leffingwell and Alford, 2011 | 60. m/0.32 mm/0.25 μm, Helium, 2. K/min, 260. C @ 28. min; Tstart: 30. C |
Capillary | HP-5 MS | 758. | Pino, Marquez, et al., 2010 | 30. m/0.32 mm/0.25 μm, Helium, 50. C @ 2. min, 4. K/min, 240. C @ 10. min |
Capillary | HP-5 MS | 753. | Radulovic, Blagojevic, et al., 2009 | 30. m/0.25 mm/0.25 μm, Helium, 5. K/min, 290. C @ 10. min; Tstart: 70. C |
Capillary | RTX-5 | 738. | Berdague, Tournayre, et al., 2007 | 60. m/0.32 mm/1. μm, 40. C @ 5. min, 4. K/min, 205. C @ 5. min |
Capillary | 5 % Phenyl methyl siloxane | 758. | Ramirez R. and Cava R., 2007 | 30. m/0.25 mm/1. μm, He, 40. C @ 10. min, 7. K/min, 250. C @ 5. min |
Capillary | SPB-5 | 744. | Pino, Marquez, et al., 2006 | 30. m/0.25 mm/0.25 μm, Helium, 60. C @ 2. min, 4. K/min, 250. C @ 20. min |
Capillary | HP-5 | 803.9 | Leffingwell and Alford, 2005 | 60. m/0.32 mm/0.25 μm, He, 30. C @ 2. min, 2. K/min, 260. C @ 28. min |
Capillary | MDN-5 | 797. | van Loon, Linssen, et al., 2005 | 60. m/0.25 mm/0.25 μm, He, 40. C @ 4. min, 4. K/min, 270. C @ 5. min |
Capillary | MDN-5 | 775. | van Loon, Linssen, et al., 2005 | 60. m/0.25 mm/0.25 μm, He, 40. C @ 4. min, 4. K/min, 270. C @ 5. min |
Capillary | HP-5 | 790. | N/A | 30. m/0.32 mm/0.25 μm, Helium, 40. C @ 2. min, 5. K/min, 250. C @ 5. min |
Capillary | HP-5 | 790. | N/A | 30. m/0.32 mm/0.25 μm, Helium, 40. C @ 2. min, 5. K/min, 250. C @ 5. min |
Capillary | HP-5 | 793. | N/A | 30. m/0.32 mm/0.25 μm, Helium, 40. C @ 2. min, 5. K/min, 250. C @ 5. min |
Capillary | HP-5 | 793. | N/A | 30. m/0.32 mm/0.25 μm, Helium, 40. C @ 2. min, 5. K/min, 250. C @ 5. min |
Capillary | OV-101 | 780. | Zenkevich, 2005 | 25. m/0.20 mm/0.10 μm, N2/He, 6. K/min; Tstart: 50. C; Tend: 250. C |
Capillary | SPB-5 | 741. | Sebastian, Viallon-Fernandez, et al., 2003 | 60. m/0.32 mm/1.0 μm, Helium, 3. K/min; Tstart: 30. C; Tend: 230. C |
Capillary | RSL-200 | 739. | Ngassoum, Jirovetz, et al., 2001 | 30. m/0.32 mm/0.25 μm, H2, 40. C @ 5. min, 6. K/min, 280. C @ 5. min |
Capillary | DB-5 | 775. | Kotseridis and Baumes, 2000 | 30. m/0.32 mm/0.5 μm, H2, 60. C @ 3. min, 3. K/min, 245. C @ 20. min |
Capillary | DB-5 | 775. | Kotseridis and Baumes, 2000 | 30. m/0.32 mm/0.5 μm, H2, 60. C @ 3. min, 3. K/min, 245. C @ 20. min |
Capillary | BP-5 | 796. | Lopez, Ferreira, et al., 1999 | 50. m/0.32 mm/1. μm, He, 40. C @ 5. min, 2. K/min; Tend: 190. C |
Capillary | DB-5 | 753. | Kondjoyan, Viallon, et al., 1997 | 60. m/0.32 mm/1. μm, 40. C @ 5. min, 3. K/min, 200. C @ 2. min |
Capillary | DB-1 | 723. | Robacker and Bartelt, 1997 | 30. m/0.32 mm/0.5 μm, He, 35. C @ 1. min, 10. K/min; Tend: 200. C |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | HP-5 MS | 758. | Pino, Marquez, et al., 2010 | 30. m/0.32 mm/0.25 μm, Helium; Program: not specified |
Capillary | CP-Sil 5 Cb | 731. | Collin, Nizet, et al., 2008 | 50. m/0.32 mm/1.20 μm, Nitrogen; Program: 40 0C 20 0C/min -> 85 0C 1 0C/min -> 145 0C 3 0C/min -> 250 0C (30 min) |
Capillary | CP-Sil5 CB MS | 731. | Iraqi, Vermeulen, et al., 2005 | 50. m/0.32 mm/1.2 μm; Program: 36C(2min) => 20C/min => 85C => 1C/min => 145C => 3C/min => 250C(30min) |
Capillary | HP-5 | 757. | Garcia-Estaban, Ansorena, et al., 2004 | 50. m/0.32 mm/1.05 μm; Program: 40C(10min) => 5C/min => 200C => 20C/min => 250C(5min) |
Capillary | DB-5 | 757. | Garcia-Estaban, Ansorena, et al., 2004, 2 | 50. m/0.32 mm/1.05 μm; Program: 40C(10min) => 5C/min => 200C => 20C/min => 250C (5min) |
Capillary | SE-30 | 756. | Vinogradov, 2004 | Program: not specified |
Capillary | SPB-5 | 744. | Begnaud, Pérès, et al., 2003 | 60. m/0.32 mm/1. μm; Program: not specified |
Capillary | HP-5MS | 790. | Martí, Mestres, et al., 2003 | 30. m/0.25 mm/0.25 μm, He; Program: 40C(5min) => 2C/min => 120C => 10C/min => 210C (30min) |
Capillary | HP-5 | 767. | Timón, Ventanas, et al., 1998 | 50. m/0.32 mm/0.52 μm, He; Program: 35 0C 10 0C/min -> 200 0C (20 min) 5 0C/min -> 230 0C (50 min) |
Capillary | DB-5 | 770. | Mateo, Aguirrezábal, et al., 1997 | 50. m/0.32 mm/0.25 μm, He; Program: 40C(10min) => 3C/min => 95C => 10C/min => 270C(10min) |
Capillary | DB-5 | 765. | Mateo and Zumalacárregui, 1996 | 50. m/0.32 mm/0.25 μm, He; Program: 40C (10min) => 3C/min => 95C => 10C/min => 270C (10min) |
Capillary | DB-5 | 758. | Mateo and Zumalacárregui, 1996 | 50. m/0.32 mm/0.25 μm, He; Program: 40C (10min) => 3C/min => 95C => 10C/min => 270C (10min) |
Normal alkane RI, polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | HP-FFAP | 1586. | Wanakhachornkrai and Lertsiri, 9999 | 25. m/0.32 mm/0.50 μm, Helium, 15. K/min; Tstart: 45. C; Tend: 220. C |
Capillary | DB-Wax | 1552. | Onishi, Inoue, et al., 2011 | 60. m/0.25 mm/0.25 μm, Helium, 50. C @ 2. min, 3. K/min, 220. C @ 20. min |
Capillary | FFAP | 1546. | Piyachaiseth, Jirapakkul, et al., 2011 | 60. m/0.25 mm/0.25 μm, Helium, 45. C @ 1. min, 5. K/min, 220. C @ 5. min |
Capillary | VF-Wax MS | 1579. | Duarte, Dias, et al., 2010 | 60. m/0.25 mm/0.25 μm, Helium, 60. C @ 5. min, 3. K/min, 220. C @ 25. min |
Capillary | HP-Innowax | 1585. | Soria, Sanz, et al., 2008 | 50. m/0.20 mm/0.20 μm, Helium, 45. C @ 2. min, 4. K/min, 190. C @ 50. min |
Capillary | CP-Wax 52CB | 1570. | Audino, Alzogaray, et al., 2007 | He, 50. C @ 2. min, 6. K/min, 220. C @ 20. min; Column length: 30. m; Phase thickness: 0.32 μm |
Capillary | CP-Wax 52CB | 1572. | Povolo, Contarini, et al., 2007 | 60. m/0.32 mm/0.5 μm, He, 40. C @ 8. min, 4. K/min, 220. C @ 20. min |
Capillary | RTX-Wax | 1552. | Prososki, Etzel, et al., 2007 | 30. m/0.25 mm/0.5 μm, He, 40. C @ 5. min, 10. K/min, 220. C @ 10. min |
Capillary | DB-Wax | 1555. | Xu, Fan, et al., 2007 | 30. m/0.25 mm/0.25 μm, He, 40. C @ 2. min, 4. K/min, 230. C @ 5. min |
Capillary | DB-Wax | 1555. | Fan and Qian, 2006 | 30. m/0.32 mm/0.25 μm, He, 40. C @ 2. min, 4. K/min, 230. C @ 15. min |
Capillary | DB-Wax | 1585. | Fan and Qian, 2006, 2 | 30. m/0.32 mm/0.25 μm, N2, 40. C @ 2. min, 6. K/min, 230. C @ 15. min |
Capillary | DB-Wax | 1561. | Kishimoto, Wanikawa, et al., 2006 | 15. m/0.32 mm/0.25 μm, He, 6. K/min, 230. C @ 20. min; Tstart: 40. C |
Capillary | HP-Innowax | 1553. | Komes, Ulrich, et al., 2006 | 30. m/0.25 mm/0.5 μm, He, 40. C @ 3. min, 2. K/min, 200. C @ 15. min |
Capillary | DB-Wax | 1572. | Fan and Qian, 2005 | 30. m/0.32 mm/0.25 μm, N2, 40. C @ 2. min, 4. K/min, 230. C @ 5. min |
Capillary | Carbowax 20M | 1569. | de la Fuente, Martinez-Castro, et al., 2005 | 50. m/0.25 mm/0.25 μm, Helium, 40. C @ 2. min, 4. K/min, 190. C @ 30. min |
Capillary | Stabilwax DA | 1592. | Nogueira, Lubachevsky, et al., 2005 | 60. m/0.25 mm/0.5 μm, 40. C @ 5. min, 5. K/min; Tend: 180. C |
Capillary | ZB-Wax | 1571. | N/A | 30. m/0.32 mm/0.25 μm, Helium, 40. C @ 2. min, 5. K/min, 250. C @ 5. min |
Capillary | ZB-Wax | 1575. | N/A | 30. m/0.32 mm/0.25 μm, Helium, 40. C @ 2. min, 5. K/min, 250. C @ 5. min |
Capillary | ZB-Wax | 1579. | N/A | 30. m/0.32 mm/0.25 μm, Helium, 40. C @ 2. min, 5. K/min, 250. C @ 5. min |
Capillary | ZB-Wax | 1585. | N/A | 30. m/0.32 mm/0.25 μm, Helium, 40. C @ 2. min, 5. K/min, 250. C @ 5. min |
Capillary | ZB-Wax | 1579. | Wu, Krings, et al., 2005 | 30. m/0.32 mm/0.25 μm, He, 40. C @ 2. min, 5. K/min, 250. C @ 10. min |
Capillary | DB-Wax | 1588. | Culleré, Escudero, et al., 2004 | 30. m/0.32 mm/0.5 μm, H2, 40. C @ 5. min, 4. K/min; Tend: 200. C |
Capillary | HP-Innowax | 1584. | Soria, Gonzalez, et al., 2004 | 50. m/0.2 mm/0.2 μm, He, 45. C @ 2. min, 4. K/min, 190. C @ 50. min |
Capillary | DB-Wax | 1583. | Alves and Franco, 2003 | 30. m/0.25 mm/0.5 μm, H2, 50. C @ 10. min, 3. K/min, 200. C @ 10. min |
Capillary | DB-Wax | 1557. | Lee and Noble, 2003 | 30. m/0.25 mm/0.25 μm, He, 40. C @ 4. min, 4. K/min, 185. C @ 20. min |
Capillary | DB-Wax | 1588. | López, Ortín, et al., 2003 | 30. m/0.32 mm/0.5 μm, H2, 40. C @ 5. min, 4. K/min; Tend: 200. C |
Capillary | TC-Wax | 1555. | Miyazawa and Okuno, 2003 | He, 4. K/min, 250. C @ 30. min; Column length: 60. m; Column diameter: 0.25 mm; Tstart: 80. C |
Capillary | DB-Wax | 1570. | Tanaka, Yamauchi, et al., 2003 | 30. m/0.25 mm/0.25 μm, 30. C @ 1. min, 4. K/min; Tend: 250. C |
Capillary | DB-Wax | 1571. | Tanaka, Yamauchi, et al., 2003 | 30. m/0.25 mm/0.25 μm, 30. C @ 1. min, 4. K/min; Tend: 250. C |
Capillary | Supelcowax-10 | 1565. | Vichi, Castellote, et al., 2003 | 30. m/0.25 mm/0.25 μm, He, 40. C @ 10. min, 3. K/min; Tend: 200. C |
Capillary | HP-FFAP | 1586. | Wanakhachornkrai and Lertsiri, 2003 | 25. m/0.32 mm/0.5 μm, He, 15. K/min; Tstart: 45. C; Tend: 220. C |
Capillary | DB-Wax | 1588. | Ferreira, Ortín, et al., 2002 | 30. m/0.32 mm/0.5 μm, H2, 40. C @ 5. min, 4. K/min; Tend: 200. C |
Capillary | FFAP | 1535. | Lecanu, Ducruet, et al., 2002 | 30. m/0.32 mm/1. μm, He, 35. C @ 3. min, 5. K/min; Tend: 240. C |
Capillary | HP-FFAP | 1535. | Qian and Reineccius, 2002 | 25. m/0.32 mm/0.52 μm, 60. C @ 1. min, 5. K/min, 240. C @ 5. min |
Capillary | DB-Wax | 1554. | Umano, Hagi, et al., 2002 | 60. m/0.25 mm/0.25 μm, He, 40. C @ 2. min, 2. K/min; Tend: 200. C |
Capillary | DB-Wax | 1584. | Aznar, López, et al., 2001 | 30. m/0.32 mm/0.5 μm, H2, 40. C @ 5. min, 4. K/min, 200. C @ 60. min |
Capillary | DB-Wax | 1584. | Ferreira, Aznar, et al., 2001 | 30. m/0.32 mm/0.5 μm, H2, 40. C @ 5. min, 4. K/min, 200. C @ 60. min |
Capillary | DB-Wax | 1535. | Wei, Mura, et al., 2001 | 60. m/0.25 mm/0.25 μm, He, 2. K/min; Tstart: 40. C; Tend: 200. C |
Capillary | DB-Wax | 1565. | Kotseridis and Baumes, 2000 | 30. m/0.32 mm/0.5 μm, H2, 60. C @ 3. min, 3. K/min, 245. C @ 20. min |
Capillary | DB-Wax | 1565. | Kotseridis and Baumes, 2000 | 30. m/0.32 mm/0.5 μm, H2, 60. C @ 3. min, 3. K/min, 245. C @ 20. min |
Capillary | DB-Wax | 1524. | Parada, Duque, et al., 2000 | 30. m/0.25 mm/0.25 μm, He, 50. C @ 3. min, 4. K/min, 240. C @ 10. min |
Capillary | DB-Wax | 1535. | Parada, Duque, et al., 2000 | 30. m/0.25 mm/0.25 μm, He, 50. C @ 3. min, 4. K/min, 240. C @ 10. min |
Capillary | Carbowax 20M | 1568. | Lopez, Ferreira, et al., 1999 | 60. m/0.32 mm/0.5 μm, He, 40. C @ 5. min, 2. K/min; Tend: 190. C |
Capillary | DB-Wax | 1560. | Buttery and Ling, 1998 | 30. C @ 4. min, 2. K/min, 170. C @ 30. min; Column length: 60. m; Column diameter: 0.25 mm |
Capillary | Supelcowax-10 | 1587. | Campeanu, Burcea, et al., 1998 | 60. m/0.32 mm/0.5 μm, H2, 35. C @ 5. min, 5. K/min, 250. C @ 20. min |
Capillary | HP-Innowax | 1551. | Ong, Acree, et al., 1998 | 4. K/min; Column length: 25. m; Column diameter: 0.32 mm; Tstart: 35. C; Tend: 250. C |
Capillary | DB-Wax | 1553. | Parada and Duque, 1998 | 30. m/0.25 mm/0.25 μm, He, 50. C @ 3. min, 4. K/min, 240. C @ 10. min |
Capillary | DB-Wax | 1561. | Parada and Duque, 1998 | 30. m/0.25 mm/0.25 μm, He, 50. C @ 3. min, 4. K/min, 240. C @ 10. min |
Capillary | DB-Wax | 1576. | Wada and Shibamoto, 1997 | He, 3. K/min, 200. C @ 40. min; Column length: 60. m; Column diameter: 0.25 mm; Tstart: 50. C |
Capillary | TC-Wax | 1578. | Shuichi, Masazumi, et al., 1996 | 80. C @ 5. min, 3. K/min; Column length: 60. m; Column diameter: 0.25 mm; Tend: 240. C |
Capillary | Carbowax 20M | 1535. | Kawakami, Kobayashi, et al., 1993 | He, 60. C @ 4. min, 2. K/min; Column length: 50. m; Column diameter: 0.25 mm; Tend: 180. C |
Capillary | Supelcowax-10 | 1579. | Hsieh, Williams, et al., 1989 | 60. m/0.25 mm/0.25 μm, He, 40. C @ 5. min, 1. K/min; Tend: 175. C |
Capillary | Carbowax 20M | 1560. | Mihara, Tateba, et al., 1988 | N2, 3. K/min; Column length: 50. m; Column diameter: 0.22 mm; Tstart: 80. C; Tend: 200. C |
Capillary | Carbowax 20M | 1570. | Mihara, Tateba, et al., 1988 | N2, 3. K/min; Column length: 50. m; Column diameter: 0.22 mm; Tstart: 80. C; Tend: 200. C |
Capillary | FFAP | 1555. | Vernin, Metzger, et al., 1988 | He, 60. C @ 5. min, 2. K/min; Column length: 50. m; Column diameter: 0.28 mm; Tend: 240. C |
Capillary | Carbowax 20M | 1560. | Mihara, Tateba, et al., 1987 | N2, 3. K/min; Column length: 50. m; Column diameter: 0.22 mm; Tstart: 80. C; Tend: 200. C |
Capillary | Carbowax 20M | 1570. | Mihara, Tateba, et al., 1987 | N2, 3. K/min; Column length: 50. m; Column diameter: 0.22 mm; Tstart: 80. C; Tend: 200. C |
Normal alkane RI, polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | EC-1000 | 1600. | Delabre and Bendall, 9999 | Program: not specified |
Capillary | DB-Wax | 1566. | Welke, Manfroi, et al., 2012 | 30. m/0.25 mm/0.25 μm, Helium; Program: not specified |
Capillary | DB-Wax | 1568. | Welke, Manfroi, et al., 2012 | 30. m/0.25 mm/0.25 μm, Helium; Program: not specified |
Capillary | CP-Wax 52 CB | 1573. | Povolo, Cabassi, et al., 2011 | Program: not specified |
Capillary | DB-Wax | 1566. | Sampaio, Garruti, et al., 2011 | 30. m/0.25 mm/0.25 μm, Hydrogen; Program: 35 0C (9 min) 5 0C/min -> 80 0C 1 0C/min -> 100 0C 16 0C/min -> 210 0C (20 min) |
Capillary | DB-Wax | 1533. | Parker, Tsormpatsidis, et al., 2010 | Program: not specified |
Capillary | Stabilwax | 1577. | Chinnici, Guerrero, et al., 2009 | 30. m/0.25 mm/0.25 μm, Helium; Program: 35 0C 3 0C/min -> 100 0C 5 0C/min -> 240 0C (10 min) |
Capillary | Polyethylene glycol (Free Fatty Acid Phase) | 1564. | Harraca, Syed, et al., 2009 | Column length: 30. m; Column diameter: 0.25 mm; Program: not specified |
Capillary | Polyethylene glycol (Free Fatty Acid Phase) | 1570. | Harraca, Syed, et al., 2009 | Column length: 30. m; Column diameter: 0.25 mm; Program: not specified |
Capillary | Polyethylene glycol (Free Fatty Acid Phase) | 1571. | Harraca, Syed, et al., 2009 | Column length: 30. m; Column diameter: 0.25 mm; Program: not specified |
Capillary | FFAP | 1538. | Frauendorfer and Schieberle, 2008 | Helium; Program: not specified |
Capillary | DB-Wax | 1618. | Yongsheng, Hua, et al., 2008 | 30. m/0.32 mm/0.25 μm, Helium; Program: 40 0C (4 min) 3 0C/min -> 50 0C 5 0C/min -> 120 0C 7 0C/min -> 175 0C 10 0C/min -> 230 0C (8 min) |
Capillary | DB-FFAP | 1563. | Lasekan, Buettner, et al., 2007 | 30. m/0.32 mm/0.25 μm; Program: 35C(2min) => 40C/min => 50C(2min) => 6C/min => 180C => 10C/min => 230C(10min) |
Capillary | DB-Wax | 1568. | Tian, Zhang, et al., 2007 | 30. m/0.25 mm/0.25 μm, He; Program: 50 0C (2 min) 6 0C/min -> 150 0C 8 0C/min -> 230 0C (15 min) |
Capillary | HP-Innowax | 1597. | Weldegergis B.T., Tredoux A.G.J., et al., 2007 | 30. m/0.25 mm/0.5 μm, He; Program: 30C(2min) => 4C/min => 130C => 8C/min => 250C(5min) |
Capillary | DB-Wax | 1566. | Krings, Zelena, et al., 2006 | 30. m/0.32 mm/0.25 μm, He; Program: 45C(5min) => 5C/min => 150C => 10C/min => 240C (10min) |
Capillary | DB-Wax | 1568. | Krings, Zelena, et al., 2006 | 30. m/0.32 mm/0.25 μm, He; Program: 45C(5min) => 5C/min => 150C => 10C/min => 240C (10min) |
Capillary | Carbowax 20M | 1549. | Editorial paper, 2005 | Program: not specified |
Capillary | Carbowax 20M | 1571. | Editorial paper, 2005 | Program: not specified |
Capillary | Carbowax 20M | 1594. | Vinogradov, 2004 | Program: not specified |
Capillary | CP-WAX 57CB | 1565. | Martí, Mestres, et al., 2003 | 50. m/0.25 mm/0.2 μm, He; Program: 40C(10min) => 5C/min => 100C => 3C/min => 180C => 20C/min => 210C (10min) |
Capillary | TRWAX | 1590. | Torrens, 2002 | 60. m/0.25 mm/0.25 μm, He; Program: not specified |
Capillary | DB-Wax | 1563. | Mayorga, Knapp, et al., 2001 | 30. m/0.25 mm/0.25 μm; Program: 50C(4min) => 4C/min => 130C => 1C/min => 190C => 4C/min => 220C(20min) |
Capillary | DB-Wax | 1569. | Mayorga, Knapp, et al., 2001 | 30. m/0.25 mm/0.25 μm; Program: 50C(4min) => 4C/min => 130C => 1C/min => 190C => 4C/min => 220C(20min) |
Capillary | Innowax | 1591. | Özcan, Akgül, et al., 2001 | 60. m/0.25 mm/0.25 μm, He; Program: 60C(10min) => 4C/min => 200C(10min) => 1C/min => 240C |
Capillary | FFAP | 1560. | Lambert, Demazeau, et al., 1999 | 30. m/0.32 mm/0.25 μm; Program: not specified |
Capillary | DB-Wax | 1570. | Ziegleder, 1998 | He; Column length: 60. m; Column diameter: 0.25 mm; Program: 45C(4min) => 30C/min => 60C (5min) => 3C/min => 220C(40min) |
Capillary | DB-FFAP | 1557. | Guth, 1997 | 30. m/0.32 mm/0.25 μm; Program: 35C (1min) => 40C/min => 60C (1min) => 6C/min => 250C (10min) |
Capillary | FFAP | 1561. | Schieberle and Grosch, 1994 | He; Column length: 30. m; Column diameter: 0.32 mm; Program: 35C => 40C/min => 60C(2min) => 4C/min => 240C |
References
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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Notes
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, Gas Chromatography, References
- Symbols used in this document:
AE Appearance energy IE (evaluated) Recommended ionization energy ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔrS° Entropy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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