Benzoic acid
- Formula: C7H6O2
- Molecular weight: 122.1213
- IUPAC Standard InChIKey: WPYMKLBDIGXBTP-UHFFFAOYSA-N
- CAS Registry Number: 65-85-0
- 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: Benzenecarboxylic acid; Benzeneformic acid; Benzenemethanoic acid; Benzoesaeure GK; Benzoesaeure GV; Carboxybenzene; Dracylic acid; Phenylcarboxylic acid; Phenylformic acid; Retarder BA; Retardex; Salvo, liquid; Solvo, powder; Tenn-Plas; Acide benzoique; Benzoic acid, tech.; Kyselina benzoova; Benzoesaeure; Salvo powder; E 210; HA 1; HA 1 (acid); Phenylcarboxy; Benzenemethonic acid; Diacylic acid; Flowers of benjamin; Flowers of benzoin; Oracylic acid; Retarder BAX; NSC 149
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Reaction thermochemistry data
Go To: Top, 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
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: C7H5O2- + H+ = C7H6O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1423. ± 9.2 | kJ/mol | G+TS | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale; B |
ΔrH° | 1423. ± 12. | kJ/mol | G+TS | Cumming and Kebarle, 1978 | gas phase; Recalculated from data in paper; error in Table vs. ladder; B |
ΔrH° | 1423. ± 9.2 | kJ/mol | G+TS | Caldwell, Renneboog, et al., 1989 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1393. ± 8.4 | kJ/mol | IMRE | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale; B |
ΔrG° | 1393. ± 8.4 | kJ/mol | IMRE | Cumming and Kebarle, 1978 | gas phase; Recalculated from data in paper; error in Table vs. ladder; B |
ΔrG° | 1394. ± 8.4 | kJ/mol | IMRE | Caldwell, Renneboog, et al., 1989 | gas phase; B |
By formula: Br- + C7H6O2 = (Br- • C7H6O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 76.6 ± 7.5 | kJ/mol | IMRE | Paul and Kebarle, 1991 | gas phase; ΔGaff measured at 423 K, ΔSaff taken as that of PhNO2..Br-; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 84. | J/mol*K | N/A | Paul and Kebarle, 1991 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 41. ± 4.2 | kJ/mol | IMRE | Paul and Kebarle, 1991 | gas phase; ΔGaff measured at 423 K, ΔSaff taken as that of PhNO2..Br-; B |
Free energy of reaction
ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
41. | 423. | PHPMS | Paul and Kebarle, 1991 | gas phase; Entropy change calculated or estimated; M |
By formula: H2O + C7H5ClO = C7H6O2 + HCl
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -34.04 ± 0.21 | kJ/mol | Cm | Moselhy and Pritchard, 1975 | liquid phase; solvent: Diphenyl-ether; see Carson, Pritchard, et al., 1950 and Davies, Dunning, et al., 1972; ALS |
ΔrH° | -101.9 | kJ/mol | Cm | Carson, Pritchard, et al., 1950 | liquid phase; Heat of hydrolysis; ALS |
By formula: C7H6O + C7H6O3 = 2C7H6O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -316. ± 13. | kJ/mol | Cm | Briner and Chastonay, 1954 | liquid phase; Reanalyzed by Cox and Pilcher, 1970, Original value = -317. ± 13. kJ/mol; ALS |
By formula: C7H5BrO + H2O = HBr + C7H6O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -113.1 | kJ/mol | Cm | Carson, Pritchard, et al., 1950 | liquid phase; Heat of hydrolysis; ALS |
By formula: C7H5IO + H2O = HI + C7H6O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -102.4 | kJ/mol | Cm | Carson, Pritchard, et al., 1950 | liquid phase; Heat of hydrolysis; ALS |
By formula: H2O + C8H8O2 = C7H6O2 + CH4O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -73.0 ± 1.9 | kJ/mol | Eqk | Guthrie and Cullimore, 1980 | liquid phase; ALS |
Gas phase ion energetics data
Go To: Top, Reaction thermochemistry 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:
HL - Edward P. Hunter and Sharon G. Lias
Data compiled as indicated in comments:
B - John E. Bartmess
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Proton affinity (review) | 821.1 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 790.1 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.3 | PE | Klasinc, Kovac, et al., 1983 | LBLHLM |
9.6 | PE | Meeks, Wahlborg, et al., 1981 | LLK |
9.8 ± 0.2 | EI | Benoit, 1973 | LLK |
9.75 | EI | Benoit, 1973, 2 | LLK |
9.73 ± 0.09 | EI | Foffani, Pignataro, et al., 1964 | RDSH |
9.47 | PE | Klasinc, Kovac, et al., 1983 | Vertical value; LBLHLM |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C6H5+ | 14.3 ± 0.07 | ? | EI | Tajima, Azami, et al., 1977 | LLK |
C6H5+ | 15.1 ± 0.2 | CO+OH | EI | Benoit, 1973 | LLK |
C6H5+ | 15.08 | CO+OH | EI | Benoit, 1973, 2 | LLK |
C7H5O+ | 11.5 ± 0.07 | OH | EI | Tajima, Azami, et al., 1977 | LLK |
C7H5O+ | 12.1 ± 0.2 | OH | EI | Benoit, 1973 | LLK |
C7H5O+ | 12.11 | OH | EI | Benoit, 1973, 2 | LLK |
De-protonation reactions
By formula: C7H5O2- + H+ = C7H6O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1423. ± 9.2 | kJ/mol | G+TS | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale; B |
ΔrH° | 1423. ± 12. | kJ/mol | G+TS | Cumming and Kebarle, 1978 | gas phase; Recalculated from data in paper; error in Table vs. ladder; B |
ΔrH° | 1423. ± 9.2 | kJ/mol | G+TS | Caldwell, Renneboog, et al., 1989 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1393. ± 8.4 | kJ/mol | IMRE | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale; B |
ΔrG° | 1393. ± 8.4 | kJ/mol | IMRE | Cumming and Kebarle, 1978 | gas phase; Recalculated from data in paper; error in Table vs. ladder; B |
ΔrG° | 1394. ± 8.4 | kJ/mol | IMRE | Caldwell, Renneboog, et al., 1989 | gas phase; B |
Gas Chromatography
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics 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, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | HP-5MS | 1193. | Alissandrakis E., Tarantilis P.A., et al., 2007 | 30. m/0.25 mm/0.25 μm, He; Program: 40C(3min) => 3C/min => 160C => 10C/min => 200C |
Capillary | BP-1 | 1159. | Khan, Verma, et al., 2006 | 30. m/0.32 mm/0.25 μm, N2; Program: 60C => 5C/min => 220C (5min) => 3C/min => 245C(5min) |
Van Den Dool and Kratz RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-1 | 1160. | Osorio, Alarcon, et al., 2006 | 25. m/0.2 mm/0.33 μm, 4. K/min; Tstart: 50. C; Tend: 300. C |
Capillary | DB-5 | 1170. | Alves, Pinto, et al., 2005 | 30. m/0.25 mm/0.25 μm, H2, 5. K/min, 270. C @ 20. min; Tstart: 35. C |
Capillary | HP-5MS | 1159. | Lalel, Singh, et al., 2003 | 60. m/0.25 mm/0.25 μm, He, 40. C @ 1. min, 3. K/min, 310. C @ 20. min |
Capillary | HP-5MS | 1178. | Papandreou, Magiatis, et al., 2002 | 30. m/0.25 mm/0.25 μm, 60. C @ 5. min, 3. K/min; Tend: 280. C |
Capillary | OV-1 | 1174. | Valero, Sanz, et al., 1999 | 20. m/0.32 mm/0.3 μm, He, 45. C @ 5. min, 10. K/min, 220. C @ 10. min |
Capillary | DB-5 | 1191. | Sakho, Chassagne, et al., 1997 | H2, 60. C @ 3. min, 2. K/min; Column length: 30. m; Column diameter: 0.25 mm; Tend: 220. C |
Capillary | DB-1 | 1191. | Adedeji, Hartman, et al., 1992 | 60. m/0.32 mm/0.25 μm, He, 40. C @ 3. min, 2. K/min, 280. C @ 10. min |
Capillary | SE-54 | 1188.8 | Shapi and Hesso, 1990 | 25. m/0.32 mm/0.15 μm, He, 40. C @ 1. min, 5. K/min, 280. C @ 15. min |
Packed | SE-30 | 1168. | Peng, Ding, et al., 1988 | He, Supelcoport and Chromosorb, 40. C @ 4. min, 10. K/min, 250. C @ 60. min; Column length: 3.05 m |
Van Den Dool and Kratz RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | BPX-5 | 1185. | Elmore, Erbahadir, et al., 1997 | 50. m/0.32 mm/0.5 μm, He; Program: 0C (5min) => 40C/min => 40C (2min) => 10C/min => 280C |
Van Den Dool and Kratz RI, polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-Wax | 2433. | Pozo-Bayon M.A., Ruiz-Rodriguez A., et al., 2007 | 30. m/0.25 mm/0.5 μm, He, 40. C @ 5. min, 4. K/min, 250. C @ 15. min |
Capillary | DB-Wax | 2412. | 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 | Supelcowax-10 | 2387. | Chung, Fung, et al., 2005 | 60. m/0.25 mm/0.25 μm, 35. C @ 5. min, 6. K/min, 195. C @ 60. min |
Capillary | Stabilwax | 2446. | Fang and Qian, 2005 | 30. m/0.32 mm/1. μm, N2, 40. C @ 2. min, 4. K/min, 230. C @ 10. min |
Capillary | Carbowax 20M | 2380. | 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 | Supelcowax-10 | 2444. | 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 | CP-Wax 52CB | 2380. | 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-Wax | 2420. | 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 | 2423. | 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 | 2405. | Chassagne, Boulanger, et al., 1999 | 30. m/0.25 mm/0.25 μm, H2, 60. C @ 3. min, 2. K/min; Tend: 220. C |
Capillary | DB-Wax | 2420. | Moio and Addeo, 1998 | 30. m/0.32 mm/1. μm, H2, 3. K/min; Tstart: 40. C; Tend: 210. C |
Capillary | DB-Wax | 2423. | Moio and Addeo, 1998 | 30. m/0.32 mm/1. μm, H2, 3. K/min; Tstart: 40. C; Tend: 210. C |
Capillary | DB-Wax | 2420. | Ott, Fay, et al., 1997 | 30. m/0.25 mm/0.25 μm, He, 20. C @ 5. min, 4. K/min, 200. C @ 10. min |
Capillary | DB-Wax | 2436. | Ott, Fay, et al., 1997 | 30. m/0.25 mm/0.25 μm, He, 20. C @ 5. min, 4. K/min, 200. C @ 10. min |
Capillary | DB-Wax | 2387. | Humpf and Schreier, 1991 | 30. m/0.25 mm/0.25 μm, He, 50. C @ 3. min, 4. K/min, 220. C @ 20. min |
Capillary | DB-Wax | 2420. | Krammer, Winterhalter, et al., 1991 | 30. m/0.25 mm/0.25 μm, He, 50. C @ 3. min, 4. K/min; Tend: 240. C |
Capillary | CP-Wax 58CB | 2400. | Pabst, Barron, et al., 1991 | 30. m/0.25 mm/0.22 μm, He, 3. K/min; Tstart: 40. C; Tend: 220. C |
Capillary | DB-Wax | 2391. | Suárez, Duque, et al., 1991 | 30. m/0.259 mm/0.25 μm, He, 50. C @ 3. min, 4. K/min; Tend: 240. C |
Capillary | DB-Wax | 2408. | Suárez, Duque, et al., 1991 | 30. m/0.259 mm/0.25 μm, He, 50. C @ 3. min, 4. K/min; Tend: 240. C |
Capillary | DB-Wax | 2392. | Suárez, Duque, et al., 1991 | 30. m/0.259 mm/0.25 μm, He, 50. C @ 3. min, 4. K/min; Tend: 240. C |
Capillary | DB-Wax | 2408. | Suárez, Duque, et al., 1991 | 30. m/0.259 mm/0.25 μm, He, 50. C @ 3. min, 4. K/min; Tend: 240. C |
Capillary | Carbowax 20M | 2401. | Schwab, Mahr, et al., 1989 | 30. m/0.25 mm/0.25 μm, He, 40. C @ 3. min, 4. K/min; Tend: 240. C |
Van Den Dool and Kratz RI, polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | CP-Wax 52CB | 2433. | Romeo, Ziino, et al., 2007 | 60. m/0.25 mm/0.25 μm, He; Program: 45C(5min) => 10C/min => 80C => 2C/min => 240C |
Capillary | DB-FFAP | 2428. | Huynh-Ba, Matthey-Doret, et al., 2003 | 30. m/0.32 mm/0.25 μm; Program: 35C(2min) => 6C/min => 180C => 10C/min => 240C (10min) |
Capillary | DB-Wax | 2399. | Cantergiani, Brevard, et al., 2001 | 30. m/0.25 mm/0.25 μm; Program: 20C(30s) => fast => 60C => 4C/min => 220C (20min) |
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | HP-5 MS | 1162. | Jerkovic, Hegic, et al., 2010 | 30. m/0.25 mm/0.25 μm, Helium, 70. C @ 2. min, 3. K/min, 200. C @ 18. min |
Capillary | HP-5 MS | 1162. | Jerkovic and Marijanovic, 2010 | 30. m/0.25 mm/0.25 μm, Helium, 70. C @ 2. min, 3. K/min, 200. C @ 18. min |
Capillary | HP-5 MS | 1162. | Jerkovic, Tuberso, et al., 2010 | 30. m/0.25 mm/0.25 μm, Helium, 70. C @ 2. min, 3. K/min, 200. C @ 18. min |
Capillary | HP-5 MS | 1163. | 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 | HP-1 | 1131. | Castel, Fernandez, et al., 2006 | 50. m/0.2 mm/0.33 μm, He, 60. C @ 4. min, 2. K/min, 250. C @ 30. min |
Capillary | HP-1 | 1164. | Castel, Fernandez, et al., 2006 | 50. m/0.2 mm/0.33 μm, He, 60. C @ 4. min, 2. K/min, 250. C @ 30. min |
Capillary | HP-1 | 1131. | Castel, Fernandez, et al., 2006 | 50. m/0.2 mm/0.33 μm, He, 60. C @ 4. min, 2. K/min, 250. C @ 30. min |
Capillary | HP-1 | 1200. | Castel, Fernandez, et al., 2006, 2 | 50. m/0.2 mm/0.5 μm, He, 2. K/min, 250. C @ 120. min; Tstart: 60. C |
Capillary | HP-1 | 1148. | Castel, Fernandez, et al., 2006, 2 | 50. m/0.2 mm/0.33 μm, He, 60. C @ 4. min, 2. K/min, 250. C @ 30. min |
Capillary | Polymethylsiloxane, (PMS-20000) | 1214. | Dohou, Yamni, et al., 2005 | He, 50. C @ 3. min, 3. K/min; Column length: 25. m; Column diameter: 0.20 mm; Tend: 250. C |
Capillary | MDN-5 | 1172. | 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 | DB-1 | 1161. | Nyegue, Belinga-Ndoye, et al., 2005 | 30. m/0.25 mm/0.25 μm, N2, 5. K/min; Tstart: 50. C; Tend: 200. C |
Capillary | HP-1 | 1138. | Fernandez, Lizzani-Cuvelier, et al., 2003 | 50. m/0.2 mm/0.5 μm, He, 2. K/min, 220. C @ 45. min; Tstart: 60. C |
Capillary | DB-1 | 1197. | Rapior, Konska, et al., 2000 | 25. m/0.25 mm/0.13 μm, He, 60. C @ 2. min, 4. K/min; Tend: 200. C |
Capillary | Optima 1 | 1210. | Fons, Rapior, et al., 1998 | 25. m/0.20 mm/0.25 μm, Helium, 3. K/min; Tstart: 50. C; Tend: 200. C |
Capillary | HP-1 | 1170. | 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-1 | 1143. | Buttery, Stern, et al., 1994 | He, 30. C @ 25. min, 4. K/min, 200. C @ 20. min; Column length: 60. m; Column diameter: 0.32 mm |
Capillary | Ultra-1 | 1149. | Okumura, 1991 | 25. m/0.32 mm/0.25 μm, He, 3. K/min; Tstart: 80. C; Tend: 260. C |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | SLB-5 MS | 1150. | Mondello, 2012 | 30. m/0.25 mm/0.25 μm, Helium; Program: not specified |
Capillary | SLB-5 MS | 1167. | Mondello, 2012 | 30. m/0.25 mm/0.25 μm, Helium; Program: not specified |
Capillary | 1164. | Brandi, Bar, et al., 2011 | Program: not specified | |
Capillary | CP-Sil 8 CB | 1184. | de Freitas, Garruti, et al., 2011 | 30. m/0.25 mm/0.25 μm, Hydrogen; Program: 30 0C 3 0C/min -> 150 0C 20 0C/min -> 220 0C |
Capillary | ZB-5 | 1164. | de Simon, Estruelas, et al., 2009 | 30. m/0.25 mm/0.25 μm, Helium; Program: 45 0C 3 0C/min -> 230 0C (10 min) 10 0C/min -> 270 0C (21 min) |
Capillary | CB-1 | 1165. | Kannaste, Vongvanich, et al., 2008 | 30. m/0.25 mm/0.25 μm, Helium; Program: 40 0C (2 min) 4 0C/min -> 180 0C 20 0C/min -> 220 0C (1 min) |
Capillary | CB-1 | 1160. | Kannaste, Vongvanich, et al., 2008 | 30. m/0.25 mm/0.25 μm, Helium; Program: not specified |
Capillary | HP-5 | 1159. | Zhao, Li, et al., 2008 | 30. m/0.25 mm/0.25 μm; Program: 40 0C (2 min) 5 0C/min -> 80 0C 7 oC/min -> 160 0C 9 0C/min -> 200 0C 20 0C/min -> 280 0C (10 min) |
Capillary | HP-5 | 1162. | Zhao, Li, et al., 2008 | 30. m/0.25 mm/0.25 μm; Program: not specified |
Capillary | HP-5MS | 1163. | Chokeprasert P., Charles A.L., et al., 2007 | 30. m/0.25 mm/0.25 μm, He; Program: 40C => 3C/min => 100C => 5C/min => 230C(2min) |
Capillary | DB-5 | 1199. | Pellicer, 2007 | 30. m/0.32 mm/0.25 μm, Helium; Program: not specified |
Capillary | HP-5MS | 1197. | Alissandrakis, Kibaris, et al., 2005 | 30. m/0.25 mm/0.25 μm, He; Program: 40C(3min) => 2C/min => 180C => 10C/min => 250C(5min) |
Capillary | SE-30 | 1152. | Vinogradov, 2004 | Program: not specified |
Capillary | SPB-5 | 1156. | Begnaud, Pérès, et al., 2003 | 60. m/0.32 mm/1. μm; Program: not specified |
Capillary | BPX-5 | 1171. | Machiels, van Ruth, et al., 2003 | 60. m/0.32 mm/1. μm, He; Program: 40C (4min) => 2C/min => 90C => 4C/min => 130C => 8C/min => 250 C (10min) |
Capillary | DB-5 | 1196. | Rapior, Breheret, et al., 2002 | 30. m/0.20 mm/1.0 μm; Program: not specified |
Capillary | DB-5 | 1210. | Rapior, Breheret, et al., 2002 | 30. m/0.20 mm/1.0 μm; Program: not specified |
Capillary | CP Sil 5 CB | 1155. | Guyot, Scheirman, et al., 1999 | He; Column length: 50. m; Column diameter: 0.32 mm; Program: 30C => 55C/min => 85C => 1C/min => 145C => 3C/min => 250C |
Capillary | CP Sil 5 CB | 1135. | Guyot, Bouseta, et al., 1998 | 50. m/0.32 mm/1.2 μm, He; Program: 30C => 55C/min => 85C => 1C/min => 145C => 3C/min => 250C |
Capillary | HP-1 | 1167. | Ong, Acree, et al., 1998 | Column length: 25. m; Column diameter: 0.32 mm; Program: not specified |
Capillary | HP-5 | 1180. | 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-1 | 1163. | Hathcock and Bertsch, 1993 | 100. m/0.25 mm/0.5 μm; Program: not specified |
Other | Methyl Silicone | 1180. | Ardrey and Moffat, 1981 | Program: not specified |
Normal alkane RI, polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | CP Wax 52 CB | 2438. | Birtic, Ginies, et al., 2009 | 30. m/0.32 mm/0.50 μm, Helium, 40. C @ 2. min, 4. K/min, 230. C @ 15. min |
Capillary | HP-Innowax | 2448. | 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 | RTX-Wax | 2417. | 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 | 2449. | 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 Etr | 2451. | Ibarz, Ferreira, et al., 2006 | 60. m/0.25 mm/0.25 μm, He, 40. C @ 5. min, 2. K/min, 230. C @ 100. min |
Capillary | Carbowax 20M | 2425. | 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 | TC-FFAP | 2449. | Kurose and Yatagai, 2005 | 60. m/0.25 mm/0.4 μm, He, 3. K/min, 220. C @ 30. min; Tstart: 60. C |
Capillary | DB-Wax | 2457. | López, Ezpeleta, et al., 2004 | 60. m/0.25 mm/0.25 μm, He, 40. C @ 5. min, 3. K/min; Tend: 220. C |
Capillary | DB-Wax | 2408. | Osorio, Duque, et al., 2002 | 30. m/0.25 mm/0.25 μm, He, 50. C @ 4. min, 4. K/min, 220. C @ 20. min |
Capillary | DB-Wax | 2416. | Osorio, Duque, et al., 2002 | 30. m/0.25 mm/0.25 μm, He, 50. C @ 4. min, 4. K/min, 220. C @ 20. min |
Capillary | DB-Wax | 2410. | 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 | 2405. | Morales, Duque, et al., 2000 | 25. m/0.25 mm/0.25 μm, He, 50. C @ 4. min, 4. K/min, 200. C @ 10. min |
Capillary | DB-Wax | 2409. | Morales, Duque, et al., 2000 | 25. m/0.25 mm/0.25 μm, He, 50. C @ 4. min, 4. K/min, 200. C @ 10. min |
Capillary | DB-Wax | 2390. | 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 | 2407. | 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 | 2390. | 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 | 2410. | 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 | PEG-20M | 2385. | Awano, Honda, et al., 1997 | He, 3. K/min; Column length: 60. m; Column diameter: 0.25 mm; Tstart: 70. C; Tend: 210. C |
Capillary | DB-Wax | 2410. | Morales, Albarracín, et al., 1996 | 30. m/0.25 mm/0.25 μm, He, 20. C @ 4. min, 4. K/min, 200. C @ 10. min |
Capillary | DB-Wax | 2409. | Morales, Albarracín, et al., 1996 | 30. m/0.25 mm/0.25 μm, He, 50. C @ 4. min, 4. K/min, 200. C @ 10. min |
Capillary | DB-Wax | 2400. | Andersen J.F., Mikolajczak K.L., et al., 1987 | Helium, 40. C @ 1. min, 6. K/min; Column length: 30. m; Column diameter: 0.32 mm; Tend: 200. C |
Normal alkane RI, polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-Wax | 2432. | Kaprasob, Laohankunjit, et al., 2011 | Program: 55 0C (2 min) 5 0C/min -> 180 0C (5 min) 8 0C/min -> 230 0C (10 min) |
Capillary | Stabilwax | 2455. | 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 | Supelcowax-10 | 2389. | de Simon, Estruelas, et al., 2009 | 30. m/0.25 mm/0.25 μm, Helium; Program: 45 0C 3 0C/min -> 230 0C (10 min) 10 0C/min -> 270 0C (21 min) |
Capillary | DB-Wax | 2404. | Tao, Wenlai, et al., 2008 | 30. m/0.32 mm/0.25 μm, Helium; Program: 50 0C 20 0C/min -> 80 0C 3 0C/min -> 230 0C |
Capillary | DB-Wax | 2428. | Gonzalez-Rios, Suarez-Quiroz, et al., 2007 | 30. m/0.25 mm/0.25 μm, Hydrogen; Program: 44 0C 3 0C/min -> 170 0C 8 0C/min -> 250 0C |
Capillary | DB-Wax | 2399. | Gonzalez-Rios, Suarez-Quiroz, et al., 2007 | 30. m/0.25 mm/0.25 μm, Hydrogen; Program: not specified |
Capillary | DB-Wax | 2435. | 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 | DB-Wax | 2432. | 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 | 2380. | Editorial paper, 2005 | Program: not specified |
Capillary | Carbowax 20M | 2426. | Vinogradov, 2004 | Program: not specified |
Capillary | DB-Wax | 2417. | 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 | 2419. | 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) |
Lee's RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | HP-5 | 199.20 | Pedersen, Durant, et al., 2005 | 30. m/0.25 mm/0.25 μm, Helium, 50. C @ 1.5 min, 6. K/min, 310. C @ 10. min |
Capillary | DB-5 | 196.5 | Donnelly, Abdel-Hamid, et al., 1993 | 30. m/0.32 mm/0.25 μm, He, 40. C @ 3. min, 8. K/min, 285. C @ 29.5 min |
Lee's RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-5 | 195.8 | Fuentes, Font, et al., 2007 | Column length: 60. m; Program: not specified |
Capillary | DB-5MS | 193.9 | Aracil, Font, et al., 2005 | Column length: 60. m; Column diameter: 0.25 mm; Program: not specified |
Capillary | Polydimethyl siloxanes | 196.52 | Eckel and Kind, 2003 | Program: not specified |
Capillary | Methyl Silicone | 200.65 | Eckel, Ross, et al., 1993 | Program: not specified |
Capillary | Methyl Silicone | 202.69 | Eckel, Ross, et al., 1993 | Program: not specified |
References
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics 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
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- Symbols used in this document:
AE Appearance energy T Temperature 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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