Heptadecanoic acid, methyl ester
- Formula: C18H36O2
- Molecular weight: 284.4772
- IUPAC Standard InChIKey: HUEBIMLTDXKIPR-UHFFFAOYSA-N
- CAS Registry Number: 1731-92-6
- 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: Margaric acid methyl ester; Methyl heptadecanoate; Methyl margarate; n-Heptadecanoic acid methyl ester; methyl heptadecanoate (17:0); 27:0, Me ester
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Options:
Data at NIST subscription sites:
NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.
Phase change 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 as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 302.25 | K | N/A | Gaikwad and Subrahmanyam, 1985 | Uncertainty assigned by TRC = 0.4 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 100.8 ± 1.0 | kJ/mol | CGC | Chickos, Zhao, et al., 2004 | Based on data from 467. to 558. K.; AC |
ΔvapH° | 97.0 ± 1.2 | kJ/mol | N/A | van Genderen, van Miltenburg, et al., 2002 | AC |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
89.3 | 350. | N/A | van Genderen, van Miltenburg, et al., 2002 | AC |
89.0 ± 0.7 | 353. | N/A | van Genderen, van Miltenburg, et al., 2002 | AC |
84.4 | 436. | A,EST | Stephenson and Malanowski, 1987 | Based on data from 421. to 525. K. See also Rose and Schrodt, 1963.; AC |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
48.1 | 304.2 | DSC | Chickos, Zhao, et al., 2004 | AC |
Mass spectrum (electron ionization)
Go To: Top, Phase change 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
Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.
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-5983 |
NIST MS number | 227555 |
Gas Chromatography
Go To: Top, Phase change 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 | OV-101 | 170. | 2001.9 | Kittiratanapiboon, Jeyashoke, et al., 1998 | 15. m/0.25 mm/0.2 μm, N2 |
Capillary | OV-101 | 175. | 2003.1 | Kittiratanapiboon, Jeyashoke, et al., 1998 | 15. m/0.25 mm/0.2 μm, N2 |
Capillary | OV-101 | 180. | 2004.2 | Kittiratanapiboon, Jeyashoke, et al., 1998 | 15. m/0.25 mm/0.2 μm, N2 |
Capillary | OV-101 | 185. | 2005.5 | Kittiratanapiboon, Jeyashoke, et al., 1998 | 15. m/0.25 mm/0.2 μm, N2 |
Capillary | OV-101 | 190. | 2006.7 | Kittiratanapiboon, Jeyashoke, et al., 1998 | 15. m/0.25 mm/0.2 μm, N2 |
Capillary | OV-101 | 195. | 2008.0 | Kittiratanapiboon, Jeyashoke, et al., 1998 | 15. m/0.25 mm/0.2 μm, N2 |
Capillary | OV-101 | 200. | 2009.3 | Kittiratanapiboon, Jeyashoke, et al., 1998 | 15. m/0.25 mm/0.2 μm, N2 |
Capillary | CP Sil 5 CB | 240. | 2010. | Hanai and Hong, 1989 | 30. m/0.25 mm/0.25 μm |
Capillary | DB-1 | 240. | 2014. | Hanai and Hong, 1989 | 30. m/0.25 mm/0.25 μm |
Capillary | SE-30 | 180. | 2011. | Haken and Korhonen, 1984 | N2; Column length: 25. m; Column diameter: 0.22 mm |
Capillary | SE-30 | 200. | 2007. | Haken and Korhonen, 1984 | N2; Column length: 25. m; Column diameter: 0.22 mm |
Packed | SE-30 | 200. | 2013. | Golovnya and Kuzmenko, 1977 | He, Chromosorb W (80-100 mesh); Column length: 1.5 m |
Packed | SE-30 | 200. | 2013. | Golovnya, Uralets, et al., 1976 | Gas Chrom Q (80-100 mesh); Column length: 1.5 m |
Kovats' RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Packed | SE-30 | 2009. | Ubik, Stránský, et al., 1974 | He, Gas Chrom Q; Column length: 1.5 m; Program: not specified |
Kovats' RI, polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | CP-Wax | 240. | 2307. | Hanai and Hong, 1989 | 25. m/0.25 mm/0.22 μm |
Capillary | DB-Wax | 240. | 2344. | Hanai and Hong, 1989 | 25. m/0.25 mm/0.22 μm |
Capillary | Carbowax 20M | 180. | 2295. | Haken and Korhonen, 1984 | N2; Column length: 22. m; Column diameter: 0.3 mm |
Capillary | Carbowax 20M | 200. | 2297. | Haken and Korhonen, 1984 | N2; Column length: 22. m; Column diameter: 0.3 mm |
Van Den Dool and Kratz RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-5 | 2028. | Wu, Zorn, et al., 2007 | 30. m/0.32 mm/0.25 μm, He, 40. C @ 2. min, 5. K/min, 250. C @ 5. min |
Capillary | DB-1 | 2008. | Johnson, Urso, et al., 1997 | 30. m/0.2 mm/0.25 μm, 50. C @ 2. min, 5. K/min, 300. C @ 5. min |
Capillary | DB-1 | 2008. | Johnson, Urso, et al., 1997 | 30. m/0.2 mm/0.25 μm, 50. C @ 2. min, 5. K/min, 300. C @ 5. min |
Capillary | BP-1 | 2010. | Tan, Wilkins, et al., 1989 | H2, 40. C @ 2. min, 4. K/min, 240. C @ 75. min; Column length: 12. m |
Capillary | DB-5 | 2028. | Rostad and Pereira, 1986 | 30. m/0.26 mm/0.25 μm, He, 50. C @ 4. min, 6. K/min, 300. C @ 20. min |
Van Den Dool and Kratz RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | HP-5 | 2030. | Isidorov, Krajewska, et al., 2001 | 30. m/0.25 mm/0.25 μm, He; Program: 50C => 6C/min => 100C => 4C/min => 280C |
Capillary | DB-1 | 2009. | Peng, 2000 | 15. m/0.53 mm/1. μm, He; Program: 40C(3min) => 8C/min => 200(1min) => 5C/min => 300C(25min) |
Van Den Dool and Kratz RI, polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | ZB-Wax | 2309. | Wu, Zorn, et al., 2007 | 30. m/0.32 mm/0.25 μm, He, 40. C @ 2. min, 5. K/min, 250. C @ 5. min |
Capillary | DB-Wax | 2325. | Peng, 2000 | 15. m/0.53 mm/1. μm, He, 40. C @ 3. min, 5. K/min, 220. C @ 30. min |
Capillary | HP-Wax | 2329. | Peng, 2000 | 15. m/0.53 mm/1. μm, He, 40. C @ 3. min, 5. K/min, 220. C @ 30. min |
Normal alkane RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | DB-1 | 200. | 2009. | Aryusuk and Krisnangkura, 2003 |
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | HP-5 MS | 2021. | Vedernikov, Shabanova, et al., 2011 | 30. m/0.25 mm/0.25 μm, Helium, 5. K/min, 280. C @ 5. min; Tstart: 150. C |
Capillary | RTx-1 | 2008. | Dib, Bendahou, et al., 2010 | 60. m/0.22 mm/0.25 μm, Helium, 2. K/min, 230. C @ 35. min; Tstart: 60. C |
Capillary | HP-5 MS | 2024. | Kim and Chung, 2009 | 30. m/0.25 mm/0.25 μm, Helium, 35. C @ 5. min, 2. K/min, 195. C @ 30. min |
Capillary | BPX-5 | 2026. | Dickschat, Bode, et al., 2005 | 25. m/0.22 mm/0.25 μm, He, 50. C @ 5. min, 5. K/min; Tend: 300. C |
Capillary | HP-5 | 2028. | N/A | 30. m/0.32 mm/0.25 μm, Helium, 40. C @ 2. min, 5. K/min, 250. C @ 5. min |
Capillary | DB-5 | 2022. | da Camara, Shepherd, et al., 2002 | 30. m/0.25 mm/0.25 μm, He, 4. K/min; Tstart: 40. C; Tend: 290. C |
Capillary | BPX-5 | 2037. | D'Arcy, Rintoul, et al., 1997 | 50. m/0.22 mm/0.25 μm, He, 50. C @ 1. min, 3. K/min, 250. C @ 10. min |
Capillary | HP-1 | 2007. | Amijee, Cheung, et al., 1996 | 12. m/0.22 mm/33. μm, He, 140. C @ 0.5 min, 20. K/min, 300. C @ 3. min |
Capillary | DB-1 | 2005. | Guy and Vernin, 1996 | He, 70. C @ 5. min, 3. K/min; Column length: 30. m; Column diameter: 0.25 mm; Tend: 300. C |
Capillary | DB-5 | 2029. | Wang, Jin, et al., 1992 | 30. m/0.25 mm/0.215 μm, N2, 50. C @ 4. min, 6. K/min, 300. C @ 20. min |
Capillary | Ultra-1 | 2007. | 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 | RTx-1 | 2006. | Dib, Bendahou, et al., 2010 | 60. m/0.22 mm/0.25 μm, Helium; Program: not specified |
Capillary | DB-5 | 2028. | Wang, Jin, et al., 1992 | 30. m/0.25 mm/0.215 μm, N2; Program: not specified |
Normal alkane RI, polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | ZB-Wax | 2309. | N/A | 30. m/0.32 mm/0.25 μm, Helium, 40. C @ 2. min, 5. K/min, 250. C @ 5. min |
Lee's RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-1 | 347.0 | Johnson, Urso, et al., 1997 | 30. m/0.2 mm/0.25 μm, 50. C @ 2. min, 5. K/min, 300. C @ 5. min |
Capillary | DB-1 | 347.1 | Johnson, Urso, et al., 1997 | 30. m/0.2 mm/0.25 μm, 50. C @ 2. min, 5. K/min, 300. C @ 5. min |
Capillary | DB-5 | 336.55 | Wang, Jin, et al., 1992 | 30. m/0.25 mm/0.215 μm, N2, 50. C @ 4. min, 6. K/min, 300. C @ 20. min |
Capillary | DB-5 | 336.74 | Rostad and Pereira, 1986 | 30. m/0.26 mm/0.25 μm, He, 50. C @ 4. min, 6. K/min, 300. C @ 20. min |
Lee's RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Polydimethyl siloxanes | 336.74 | Eckel and Kind, 2003 | Program: not specified |
Capillary | DB-5 | 336.74 | Wang, Jin, et al., 1992 | 30. m/0.25 mm/0.215 μm, N2; Program: not specified |
References
Go To: Top, Phase change 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.
Gaikwad and Subrahmanyam, 1985
Gaikwad, B.R.; Subrahmanyam, V.V.,
Melting behavior of fatty alcohols and their binary blends.,
J. Indian Chem. Soc., 1985, 62, 513. [all data]
Chickos, Zhao, et al., 2004
Chickos, James S.; Zhao, Hui; Nichols, Gary,
The vaporization enthalpies and vapor pressures of fatty acid methyl esters C18, C21 to C23, and C25 to C29 by correlation -- gas chromatography,
Thermochimica Acta, 2004, 424, 1-2, 111-121, https://doi.org/10.1016/j.tca.2004.05.020
. [all data]
van Genderen, van Miltenburg, et al., 2002
van Genderen, Aad C.G.; van Miltenburg, J. Cees; Blok, Jacobus G.; van Bommel, Mark J.; van Ekeren, Paul J.; van den Berg, Gerrit J.K.; Oonk, Harry A.J.,
Liquid--vapour equilibria of the methyl esters of alkanoic acids: vapour pressures as a function of temperature and standard thermodynamic function changes,
Fluid Phase Equilibria, 2002, 202, 1, 109-120, https://doi.org/10.1016/S0378-3812(02)00097-3
. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Rose and Schrodt, 1963
Rose, Arthur; Schrodt, Verle N.,
Correlation and Prediction of Vapor Pressures of Homologs. Use of Structure Parameters and Gas Chromatography Data.,
J. Chem. Eng. Data, 1963, 8, 1, 9-13, https://doi.org/10.1021/je60016a002
. [all data]
Kittiratanapiboon, Jeyashoke, et al., 1998
Kittiratanapiboon, K.; Jeyashoke, N.; Krisnangkura, K.,
The relationship of Kováts retention indices and equivalent chain lengths of fatty acid methyl esters on a methyl silicone capillary column,
J. Chromatogr. Sci., 1998, 36, 7, 361-364, https://doi.org/10.1093/chromsci/36.7.361
. [all data]
Hanai and Hong, 1989
Hanai, T.; Hong, C.,
Structure-retention correlation in CGC,
J. Hi. Res. Chromatogr., 1989, 12, 5, 327-332, https://doi.org/10.1002/jhrc.1240120517
. [all data]
Haken and Korhonen, 1984
Haken, J.K.; Korhonen, I.O.O.,
Gas chromatography of homologous esters. XXV. Capillary column studies of monochlorinated C5-C18 n-carboxylic esters,
J. Chromatogr., 1984, 298, 89-100, https://doi.org/10.1016/S0021-9673(01)92697-4
. [all data]
Golovnya and Kuzmenko, 1977
Golovnya, R.V.; Kuzmenko, T.E.,
Thermodynamic evaluation of the interaction of fatty acid methyl esters with polar and non-polar stationary phases, based on their retention indices,
Chromatographia, 1977, 10, 9, 545-548, https://doi.org/10.1007/BF02262915
. [all data]
Golovnya, Uralets, et al., 1976
Golovnya, R.V.; Uralets, V.P.; Kuzmenko, T.E.,
Characterization of fatty acid methyl esters by gas chromatography on siloxane liquid phases,
J. Chromatogr., 1976, 121, 1, 118-121, https://doi.org/10.1016/S0021-9673(00)82312-2
. [all data]
Ubik, Stránský, et al., 1974
Ubik, K.; Stránský, K.; Streibl, M.,
Mass Spectrometry and Gas Chromatography of Methyl Esters of Higher Aliphatic Branched Acids and Their α-Hydroxy Derivatives,
Collect. Czech. Chem. Commun., 1974, 40, 9, 2826-2837, https://doi.org/10.1135/cccc19752826
. [all data]
Wu, Zorn, et al., 2007
Wu, S.; Zorn, H.; Krings, U.; Berger, R.G.,
Volatiles from submerged and surface-cultured beefsteak fungus, Fistulina hepatica,
Flavour Fragr. J., 2007, 22, 1, 53-60, https://doi.org/10.1002/ffj.1758
. [all data]
Johnson, Urso, et al., 1997
Johnson, C.I.; Urso, A.; Geleta, L.,
Broad spectrum analysis of municipal and industrial effluents discharged into the Peace, Athabasca and Slave river basins: characterization of effluent samples, 1994 - Volume 1 of 2, Northern River Basins Study Project Report No. 121, Norther River Basins Study, Edmonton, Alberta, 1997, 27. [all data]
Tan, Wilkins, et al., 1989
Tan, S.T.; Wilkins, A.L.; Holland, P.T.; McGhie, T.K.,
Extractives from New Zealand unifloral honeys. 2. Degraded carotenoids and other substances from heather honey,
J. Agric. Food Chem., 1989, 37, 5, 1217-1221, https://doi.org/10.1021/jf00089a004
. [all data]
Rostad and Pereira, 1986
Rostad, C.E.; Pereira, W.E.,
Kovats and Lee retention indices determined by gas chromatography/mass spectrometry for organic compounds of environmental interest,
J. Hi. Res. Chromatogr. Chromatogr. Comm., 1986, 9, 6, 328-334, https://doi.org/10.1002/jhrc.1240090603
. [all data]
Isidorov, Krajewska, et al., 2001
Isidorov, V.A.; Krajewska, U.; Dubis, E.N.; Jdanova, M.A.,
Partition coefficients of alkyl aromatic hydrocarbons and esters in a hexane-acetonitrile system,
J. Chromatogr. A, 2001, 923, 1-2, 127-136, https://doi.org/10.1016/S0021-9673(01)00929-3
. [all data]
Peng, 2000
Peng, C.T.,
Prediction of retention indices. V. Influence of electronic effects and column polarity on retention index,
J. Chromatogr. A, 2000, 903, 1-2, 117-143, https://doi.org/10.1016/S0021-9673(00)00901-8
. [all data]
Aryusuk and Krisnangkura, 2003
Aryusuk, K.; Krisnangkura, K.,
Prediction of gas chromatographic retention times of capillary columns of different inside diameters,
J. Sep. Sci., 2003, 26, 18, 1688-1692, https://doi.org/10.1002/jssc.200301505
. [all data]
Vedernikov, Shabanova, et al., 2011
Vedernikov, D.N.; Shabanova, N.Yu.; Roshchin, V.I.,
Change in the chemical composition of the crust and inner bark of the Betula pendula Roth. Birch (Betulaceae) with tree height,
Rus. J. Bioorg. Chem., 2011, 37, 7, 877-882, https://doi.org/10.1134/S1068162011070259
. [all data]
Dib, Bendahou, et al., 2010
Dib, M.A.; Bendahou, M.; Bendiabdellah, A.; Djabou, N.; Allali, H.; Tabti, B.; Paolini, J.; Costa, J.,
Partial chemical composition and antimicrobial activity of Daucus crinitus Desf. extracts,
Grasas y Aceites, 2010, 61, 3, 271-278, https://doi.org/10.3989/gya.122609
. [all data]
Kim and Chung, 2009
Kim, J.-S.; Chung, H.Y.,
GC-MS analysis of the volatile components in dried boxthorn (Lycium chimensis) Fruit,
J. Korean Soc. Appl. Biol. Chem., 2009, 52, 5, 516-524, https://doi.org/10.3839/jksabc.2009.088
. [all data]
Dickschat, Bode, et al., 2005
Dickschat, J.S.; Bode, H.B.; Kroppenstedt, R.M.; Müller, R.; Schulz, S.,
Biosynthesis of iso-fatty acids in myxobacteria,
Org. Biomol. Chem., 2005, 3, 15, 2824-2831, https://doi.org/10.1039/b504889c
. [all data]
da Camara, Shepherd, et al., 2002
da Camara, C.A.G.; Shepherd, S.L.K.; Joaquim, D.R.G.,
Análise químnica da cultura de tecidos do híbrido Clusia paralicola X Clusia weddelliana,
Revista Brasileira de Farmacognosia, 2002, 12, 26-28, https://doi.org/10.1590/S0102-695X2002000300013
. [all data]
D'Arcy, Rintoul, et al., 1997
D'Arcy, B.R.; Rintoul, G.B.; Rowland, C.Y.; Blackman, A.J.,
Composition of Australian honey extractives. 1. Norisoprenoids, monoterpenes, and other natural volatiles from blue gum (Eucalyptus leucoxylon) and yellow box (Eucalyptus melliodora) honeys,
J. Agric. Food Chem., 1997, 45, 5, 1834-1843, https://doi.org/10.1021/jf960625+
. [all data]
Amijee, Cheung, et al., 1996
Amijee, M.; Cheung, J.; Wells, R.J.,
Direct on-column derivatisation in gas chromatography. III. On-column benzylation reagents and the development of 3,5-bis(trifluoromethyl)benzyl-dimethylphenylammonium fluoride, an efficient new on-column derivatisation reagent,
J. Chromatogr. A, 1996, 738, 1, 57-72, https://doi.org/10.1016/0021-9673(96)00088-X
. [all data]
Guy and Vernin, 1996
Guy, I.; Vernin, G.,
Minor compounds from Cistus ladaniferus L. essential oil from esterel. 2. Acids and phenols,
J. Essent. Oil Res., 1996, 8, 4, 455-462, https://doi.org/10.1080/10412905.1996.9700666
. [all data]
Wang, Jin, et al., 1992
Wang, X.; Jin, Z.; Xu, X.,
Analysis of fatty acids in bacteria by using gas chromatographic retention indices,
Chin. J. Chromatogr., 1992, 10, 2, 92-94. [all data]
Okumura, 1991
Okumura, T.,
retention indices of environmental chemicals on methyl silicone capillary column,
Journal of Environmental Chemistry (Japan), 1991, 1, 2, 333-358, https://doi.org/10.5985/jec.1.333
. [all data]
Eckel and Kind, 2003
Eckel, W.P.; Kind, T.,
Use of boiling point-Lee retention index correlation for rapid review of gas chromatography-mass spectrometry data,
Anal. Chim. Acta., 2003, 494, 1-2, 235-243, https://doi.org/10.1016/j.aca.2003.08.003
. [all data]
Notes
Go To: Top, Phase change data, Mass spectrum (electron ionization), Gas Chromatography, References
- Symbols used in this document:
Tfus Fusion (melting) point ΔfusH Enthalpy of fusion ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.