Acetonitrile
- Formula: C2H3N
- Molecular weight: 41.0519
- IUPAC Standard InChIKey: WEVYAHXRMPXWCK-UHFFFAOYSA-N
- CAS Registry Number: 75-05-8
- 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: Cyanomethane; Ethanenitrile; Ethyl nitrile; Methane, cyano-; Methanecarbonitrile; Methyl cyanide; CH3CN; Acetonitril; Cyanure de methyl; USAF EK-488; Methylkyanid; NA 1648; NCI-C60822; Rcra waste number U003; UN 1648; Ethanonitrile
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- Other data available:
- Gas phase thermochemistry data
- Condensed phase thermochemistry data
- Phase change data
- Reaction thermochemistry data: reactions 1 to 50, reactions 51 to 100, reactions 101 to 150, reactions 151 to 188
- Gas phase ion energetics data
- Ion clustering data
- IR Spectrum
- UV/Visible spectrum
- Vibrational and/or electronic energy levels
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Henry's Law data
Go To: Top, Mass spectrum (electron ionization), 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 by: Rolf Sander
Henry's Law constant (water solution)
kH(T) = k°H exp(d(ln(kH))/d(1/T) ((1/T) - 1/(298.15 K)))
k°H = Henry's law constant for solubility in water at 298.15 K (mol/(kg*bar))
d(ln(kH))/d(1/T) = Temperature dependence constant (K)
k°H (mol/(kg*bar)) | d(ln(kH))/d(1/T) (K) | Method | Reference | Comment |
---|---|---|---|---|
53. | 4100. | M | N/A | |
49. | Q | N/A | missing citation give several references for the Henry's law constants but don't assign them to specific species. | |
48. | 3500. | L | N/A | |
49. | 4000. | M | N/A | |
29. | X | N/A | Value given here as quoted by missing citation. | |
54. | 4100. | M | N/A | |
29. | R | N/A |
Mass spectrum (electron ionization)
Go To: Top, Henry's Law 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 by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
View image of digitized spectrum (can be printed in landscape orientation).
Due to licensing restrictions, this spectrum cannot be downloaded.
Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | Japan AIST/NIMC Database- Spectrum MS-NW-4393 |
NIST MS number | 228221 |
Gas Chromatography
Go To: Top, Henry's Law data, Mass spectrum (electron ionization), 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, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | HP-1 | 100. | 452.53 | Görgényi and Héberger, 2003 | N2; Column length: 30. m; Phase thickness: 3. μm |
Capillary | HP-1 | 110. | 452.72 | Görgényi and Héberger, 2003 | N2; Column length: 30. m; Phase thickness: 3. μm |
Capillary | HP-1 | 120. | 452.90 | Görgényi and Héberger, 2003 | N2; Column length: 30. m; Phase thickness: 3. μm |
Capillary | HP-1 | 130. | 453.18 | Görgényi and Héberger, 2003 | N2; Column length: 30. m; Phase thickness: 3. μm |
Capillary | HP-1 | 140. | 453.70 | Görgényi and Héberger, 2003 | N2; Column length: 30. m; Phase thickness: 3. μm |
Capillary | HP-1 | 150. | 454.45 | Görgényi and Héberger, 2003 | N2; Column length: 30. m; Phase thickness: 3. μm |
Capillary | HP-1 | 160. | 455.25 | Görgényi and Héberger, 2003 | N2; Column length: 30. m; Phase thickness: 3. μm |
Capillary | HP-1 | 170. | 455.74 | Görgényi and Héberger, 2003 | N2; Column length: 30. m; Phase thickness: 3. μm |
Capillary | HP-1 | 180. | 456.69 | Görgényi and Héberger, 2003 | N2; Column length: 30. m; Phase thickness: 3. μm |
Capillary | HP-1 | 190. | 457.67 | Görgényi and Héberger, 2003 | N2; Column length: 30. m; Phase thickness: 3. μm |
Capillary | HP-1 | 20. | 455.45 | Görgényi and Héberger, 2003 | N2; Column length: 30. m; Phase thickness: 3. μm |
Capillary | HP-1 | 30. | 454.52 | Görgényi and Héberger, 2003 | N2; Column length: 30. m; Phase thickness: 3. μm |
Capillary | HP-1 | 40. | 453.90 | Görgényi and Héberger, 2003 | N2; Column length: 30. m; Phase thickness: 3. μm |
Capillary | HP-1 | 50. | 453.32 | Görgényi and Héberger, 2003 | N2; Column length: 30. m; Phase thickness: 3. μm |
Capillary | HP-1 | 60. | 452.92 | Görgényi and Héberger, 2003 | N2; Column length: 30. m; Phase thickness: 3. μm |
Capillary | HP-1 | 70. | 452.71 | Görgényi and Héberger, 2003 | N2; Column length: 30. m; Phase thickness: 3. μm |
Capillary | HP-1 | 80. | 452.50 | Görgényi and Héberger, 2003 | N2; Column length: 30. m; Phase thickness: 3. μm |
Capillary | HP-1 | 90. | 452.35 | Görgényi and Héberger, 2003 | N2; Column length: 30. m; Phase thickness: 3. μm |
Capillary | CP Sil 5 CB | 20. | 456.9 | Do and Raulin, 1992 | 25. m/0.15 mm/2. μm, H2 |
Capillary | PoraPLOT Q | 100. | 432. | Do and Raulin, 1989 | 10. m/0.32 mm/10. μm, H2 |
Capillary | PoraPLOT Q | 160. | 442. | Do and Raulin, 1989 | 10. m/0.32 mm/10. μm, H2 |
Capillary | PoraPLOT Q | 200. | 450. | de Zeeuw, de Nijs, et al., 1988 | H2; Column length: 25. m; Column diameter: 0.53 mm |
Capillary | PoraPLOT Q | 200. | 460. | de Zeeuw, de Nijs, et al., 1988 | H2; Column length: 25. m; Column diameter: 0.53 mm |
Packed | SE-30 | 100. | 464. | Winskowski, 1983 | Gaschrom Q; Column length: 2. m |
Packed | Porapack Q | 200. | 425. | Goebel, 1982 | N2 |
Packed | Apiezon L | 150. | 440. | Brown, Chapman, et al., 1968 | N2, DCMS-treated Chromosorb W; Column length: 2.3 m |
Packed | DC-200 | 100. | 460. | Rohrschneider, 1966 | Column length: 4. m |
Packed | Apiezon L | 100. | 444. | Rohrschneider, 1966 | Column length: 5. m |
Packed | Apiezon L | 130. | 447. | Wehrli and Kováts, 1959 | Celite; Column length: 2.25 m |
Packed | Apiezon L | 70. | 439. | Wehrli and Kováts, 1959 | Celite; Column length: 2.25 m |
Kovats' RI, polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Packed | Carbowax 20M | 75. | 1045. | Goebel, 1982 | N2, Kieselgur (60-100 mesh); Column length: 2. m |
Packed | Carbowax 20M | 100. | 1025. | Rohrschneider, 1966 | Column length: 2. m |
Van Den Dool and Kratz RI, polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | FFAP | 1012. | 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 |
Normal alkane RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Packed | Synachrom | 150. | 439. | Dufka, Malinsky, et al., 1971 | Helium, Synachrom (60-80 mesh); Column length: 1.5 m |
Packed | Synachrom | 150. | 446. | Dufka, Malinsky, et al., 1971 | Helium, Synachrom (60-80 mesh); Column length: 1.5 m |
Packed | DC-400 | 150. | 500. | Anderson, 1968 | Helium, Gas-Pak (60-80 mesh); Column length: 3.0 m |
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Polydimethyl siloxane: CP-Sil 5 CB | 456. | Bramston-Cook, 2013 | 60. m/0.25 mm/1.0 μm, Helium, 45. C @ 1.45 min, 3.6 K/min, 210. C @ 2.72 min |
Capillary | BP-1 | 470. | Health Safety Executive, 2000 | 50. m/0.22 mm/0.75 μm, He, 5. K/min; Tstart: 50. C; Tend: 200. C |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Methyl Silicone | 447. | N/A | Program: not specified |
Capillary | SPB-1 | 443. | Flanagan, Streete, et al., 1997 | 60. m/0.53 mm/5. μm, He; Program: 40C(6min) => 5C/min => 80C => 10C/min => 200C |
Capillary | Polydimethyl siloxanes | 452. | Zenkevich and Chupalov, 1996 | Program: not specified |
Capillary | Methyl Silicone | 467. | Zenkevich, Korolenko, et al., 1995 | Program: not specified |
Capillary | SPB-1 | 443. | Strete, Ruprah, et al., 1992 | 60. m/0.53 mm/5.0 μm, Helium; Program: 40 0C (6 min) 5 0C/min -> 80 0C 10 0C/min -> 200 0C |
Capillary | SPB-1 | 455. | Strete, Ruprah, et al., 1992 | 60. m/0.53 mm/5.0 μm, Helium; Program: not specified |
Capillary | CP Sil 8 CB | 490. | Weller and Wolf, 1989 | 40. m/0.25 mm/0.25 μm, He; Program: 30 0C (1 min) 15 0C/min -> 45 0C 3 0C/min -> 120 0C |
Capillary | OV-1, SE-30, Methyl silicone, SP-2100, OV-101, DB-1, etc. | 464. | Waggott and Davies, 1984 | Hydrogen; Column length: 50. m; Column diameter: 0.32 mm; Program: not specified |
Capillary | OV-1 | 455. | Ramsey and Flanagan, 1982 | Program: not specified |
Normal alkane RI, polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-Wax | 1026. | Shimadzu, 2012 | 30. m/0.32 mm/0.50 μm, Helium, 4. K/min; Tstart: 40. C; Tend: 260. C |
Capillary | Carbowax 20M | 1002. | 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 | DB-Wax | 1026. | Shimadzu Corporation, 2003 | 30. m/0.32 mm/0.5 μm, He, 4. K/min; Tstart: 40. C; Tend: 260. C |
Capillary | Carbowax 20M | 1030. | Soria, Martinez-Castro, et al., 2003 | 50. m/0.25 mm/0.25 μm, He, 45. C @ 2. min, 4. K/min, 190. C @ 50. min |
Capillary | DB-Wax | 1003. | Umano, Hagi, et al., 1995 | He, 40. C @ 2. min, 2. K/min; Column length: 60. m; Column diameter: 0.25 mm; Tend: 200. C |
Normal alkane RI, polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | SOLGel-Wax | 988. | Johanningsmeier and McFeeters, 2011 | 30. m/0.25 mm/0.25 μm, Helium; Program: 40 0C (2 min) 5 0C/min -> 140 0C 10 0C/min -> 250 0C (3 min) |
Capillary | Supelcowax-10 | 1013. | Soria, Martinez-Castro, et al., 2009 | 50. m/0.25 mm/0.25 μm, Helium; Program: 45 0C (15 min) 3 0C/min -> 75 0C 5 0C/min -> 180 0C (10 min) |
Capillary | Supelcowax 10 | 1013. | Soria, Martinez-Castro, et al., 2008 | 50. m/0.25 mm/0.25 μm, Helium; Program: 45 0C (15 min) 3 0C/min -> 75 0C 5 0C/min -> 180 0C (10 min) |
Capillary | Polyethylene Glycol | 1002. | Zenkevich, Korolenko, et al., 1995 | Program: not specified |
Capillary | Carbowax 400, Carbowax 20M, Carbowax 1540, Carbowax 4000, Superox 06, PEG 20M, etc. | 1011. | Waggott and Davies, 1984 | Hydrogen; Column length: 50. m; Column diameter: 0.32 mm; Program: not specified |
Capillary | Carbowax 400, Carbowax 20M, Carbowax 1540, Carbowax 4000, Superox 06, PEG 20M, etc. | 1045. | Waggott and Davies, 1984 | Hydrogen; Column length: 50. m; Column diameter: 0.32 mm; Program: not specified |
Capillary | Carbowax 20M | 1010. | Ramsey and Flanagan, 1982 | Program: not specified |
References
Go To: Top, Henry's Law data, Mass spectrum (electron ionization), Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Görgényi and Héberger, 2003
Görgényi, M.; Héberger, K.,
Minimum in the temperature dependence of the Kováts retention indices of nitroalkanes and alkanenitriles on an apolar phase,
J. Chromatogr. A, 2003, 985, 1-2, 11-19, https://doi.org/10.1016/S0021-9673(02)01842-3
. [all data]
Do and Raulin, 1992
Do, L.; Raulin, F.,
Gas chromatography of Titan's atmosphere. III. Analysis of low-molecular-weight hydrocarbons and nitriles with a CP-Sil-5 CB WCOT capillary column,
J. Chromatogr., 1992, 591, 1-2, 297-301, https://doi.org/10.1016/0021-9673(92)80247-R
. [all data]
Do and Raulin, 1989
Do, L.; Raulin, F.,
Gas chromatography of Titan's atmosphere. I. Analysis of low-molecular-weight hydrocarbons and nitriles with a PoraPLOT Q porous polymer coated open-tubular capillary column,
J. Chromatogr., 1989, 481, 45-54, https://doi.org/10.1016/S0021-9673(01)96751-2
. [all data]
de Zeeuw, de Nijs, et al., 1988
de Zeeuw, J.; de Nijs, R.C.M.; Buyten, J.C.; Peene, J.A.; Mohne, M.,
PoraPLOT Q: A porous layer open tubular column coated with styrene-divinylbenzene copolymer,
J. Hi. Res. Chromatogr. Chromatogr. Comm., 1988, 11, 2, 162-167, https://doi.org/10.1002/jhrc.1240110204
. [all data]
Winskowski, 1983
Winskowski, J.,
Gaschromatographische Identifizierung von Stoffen anhand von Indexziffem und unterschiedlichen Detektoren,
Chromatographia, 1983, 17, 3, 160-165, https://doi.org/10.1007/BF02271041
. [all data]
Goebel, 1982
Goebel, K.-J.,
Gaschromatographische Identifizierung Niedrig Siedender Substanzen Mittels Retentionsindices und Rechnerhilfe,
J. Chromatogr., 1982, 235, 1, 119-127, https://doi.org/10.1016/S0021-9673(00)95793-5
. [all data]
Brown, Chapman, et al., 1968
Brown, I.; Chapman, I.L.; Nicholson, G.J.,
Gas chromatography of polar solutes in electron acceptor stationary phases,
Aust. J. Chem., 1968, 21, 5, 1125-1141, https://doi.org/10.1071/CH9681125
. [all data]
Rohrschneider, 1966
Rohrschneider, L.,
Eine methode zur charakterisierung von gaschromatographischen trennflüssigkeiten,
J. Chromatogr., 1966, 22, 6-22, https://doi.org/10.1016/S0021-9673(01)97064-5
. [all data]
Wehrli and Kováts, 1959
Wehrli, A.; Kováts, E.,
Gas-chromatographische Charakterisierung ogranischer Verbindungen. Teil 3: Berechnung der Retentionsindices aliphatischer, alicyclischer und aromatischer Verbindungen,
Helv. Chim. Acta, 1959, 7, 7, 2709-2736, https://doi.org/10.1002/hlca.19590420745
. [all data]
Ott, Fay, et al., 1997
Ott, A.; Fay, L.B.; Chaintreau, A.,
Determination and origin of the aroma impact compounds of yogurt flavor,
J. Agric. Food Chem., 1997, 45, 3, 850-858, https://doi.org/10.1021/jf960508e
. [all data]
Dufka, Malinsky, et al., 1971
Dufka, O.; Malinsky, J.; Vladyka, J.,
Sorpcni materialy pro plynovou chromatographii - III,
Chemicky promysl., 1971, 21/46, 9, 459-463. [all data]
Anderson, 1968
Anderson, D.G.,
USe of Kovats retention indices and response factors for the qualitative and quantitative analysis of coating solvents,
J. Paint Technol., 1968, 40, 527, 549-557. [all data]
Bramston-Cook, 2013
Bramston-Cook, R.,
Kovats indices for C2-C13 hydrocarbons and selected oxygenated/halocarbons with 100 % dimethylpolysiloxane columns, 2013, retrieved from http://lotusinstruments.com/monographs/List .... [all data]
Health Safety Executive, 2000
Health Safety Executive,
MDHS 96 Volatile organic compounds in air - Laboratory method using pumed solid sorbent tubes, solvent desorption and gas chromatography
in Methods for the Determination of Hazardous Substances (MDHS) guidance, Crown, Colegate, Norwich, 2000, 1-24, retrieved from http://www.hse.gov.uk/pubns/mdhs/pdfs/mdhs96.pdf. [all data]
Flanagan, Streete, et al., 1997
Flanagan, R.J.; Streete, P.J.; Ramsey, J.D.,
Volatile Substance Abuse, UNODC Technical Series, No 5, United Nations, Office on Drugs and Crime, Vienna International Centre, PO Box 500, A-1400 Vienna, Austria, 1997, 56, retrieved from http://www.odccp.org/pdf/technicalseries1997-01-011.pdf. [all data]
Zenkevich and Chupalov, 1996
Zenkevich, I.G.; Chupalov, A.A.,
New Possibilities of Chromato Mass Pectrometric Identification of Organic Compounds Using Increments of Gas Chromatographic Retention Indices of Molecular Structural Fragments,
Zh. Org. Khim. (Rus.), 1996, 32, 5, 656-666. [all data]
Zenkevich, Korolenko, et al., 1995
Zenkevich, I.G.; Korolenko, L.I.; Khralenkova, N.B.,
Desorption with solvent vapor as a method of sample preparation in the sorption preconcentration of organic-compounds from the air of a working area and from industrial-waste gases,
J. Appl. Chem. USSR (Engl. Transl.), 1995, 50, 10, 937-944. [all data]
Strete, Ruprah, et al., 1992
Strete, P.J.; Ruprah, M.; Ramsey, J.D.; Flanagan, R.J.,
Detection and identification of volatile substances by headspace capillary gas chromatography to aid the diagnosis of acute poisoning,
Analyst, 1992, 117, 7, 1111-1127, https://doi.org/10.1039/an9921701111
. [all data]
Weller and Wolf, 1989
Weller, J.-P.; Wolf, M.,
Massenspektroskopie und Headspace-GC,
Beitr. Gerichtl. Med., 1989, 47, 525-532. [all data]
Waggott and Davies, 1984
Waggott, A.; Davies, I.W.,
Identification of organic pollutants using linear temperature programmed retention indices (LTPRIs) - Part II, 1984, retrieved from http://dwi.defra.gov.uk/research/completed-research/reports/dwi0383.pdf. [all data]
Ramsey and Flanagan, 1982
Ramsey, J.D.; Flanagan, R.J.,
Detection and Identification of Volatile Organic Compounds in Blood by Headspace Gas Chromatography as an Aid to the Diagnosis of Solvent Abuse,
J. Chromatogr., 1982, 240, 2, 423-444, https://doi.org/10.1016/S0021-9673(00)99622-5
. [all data]
Shimadzu, 2012
Shimadzu, Pharmaceutical Related,
Analysis of pharmaceutical residual solvent (observation of separation) (1) - GC, 2012, retrieved from www.shimadzu.ru/applications/Applicationspdf/GC/Pharma/Pharmaceutical residual solvents GC.pdf. [all data]
de la Fuente, Martinez-Castro, et al., 2005
de la Fuente, E.; Martinez-Castro, I.; Sanz, J.,
Characterization of Spanish unifloral honeys by solid phase microextraction and gas chromatography-mass spectrometry,
J. Sep. Sci., 2005, 28, 9-10, 1093-1100, https://doi.org/10.1002/jssc.200500018
. [all data]
Shimadzu Corporation, 2003
Shimadzu Corporation,
Analysis of pharmaceutical residual solvent (observation of separation), 2003, retrieved from http://www.shimadzu.com.br/analitica/aplicacoes/book/pharm69.pdf. [all data]
Soria, Martinez-Castro, et al., 2003
Soria, A.C.; Martinez-Castro, I.; Sanz, J.,
Analysis of volatile composition of honey by solid phase microextraction and gas chromatographymass spectrometry,
J. Sep. Sci., 2003, 26, 9-10, 793-801, https://doi.org/10.1002/jssc.200301368
. [all data]
Umano, Hagi, et al., 1995
Umano, K.; Hagi, Y.; Nakahara, K.; Shyoji, A.; Shibamoto, T.,
Volatile chemicals formed in the headspace of a heated D-glucose/L-cysteine Maillard model system,
J. Agric. Food Chem., 1995, 43, 8, 2212-2218, https://doi.org/10.1021/jf00056a046
. [all data]
Johanningsmeier and McFeeters, 2011
Johanningsmeier, S.D.; McFeeters, R.F.,
Detection of volatile spoilage metabolites in fermented cucumbers using nontargeted, comprehensive 2-dimensional gas chromatography-time-of-flight mass spectrometry (GCxGCxTOFMS),
J. Food Sci., 2011, 76, 1, c168-c177, https://doi.org/10.1111/j.1750-3841.2010.01918.x
. [all data]
Soria, Martinez-Castro, et al., 2009
Soria, A.C.; Martinez-Castro, I.; Sanz, J.,
Study of the precision in the purge-and-trap-gas-chromatography-mass-spectrometry analysis of volatile compounds in honey,
J. Chromatogr. A., 2009, 1216, 15, 3300-3304, https://doi.org/10.1016/j.chroma.2009.01.065
. [all data]
Soria, Martinez-Castro, et al., 2008
Soria, A.C.; Martinez-Castro, I.; Sanz, J.,
Some aspects of dynamic headspace analysis of volatile components in honey,
Foog Res. International, 2008, 41, 8, 838-848, https://doi.org/10.1016/j.foodres.2008.07.010
. [all data]
Notes
Go To: Top, Henry's Law data, Mass spectrum (electron ionization), Gas Chromatography, References
- Symbols used in this document:
d(ln(kH))/d(1/T) Temperature dependence parameter for Henry's Law constant k°H Henry's Law constant at 298.15K - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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