Dodecane
- Formula: C12H26
- Molecular weight: 170.3348
- IUPAC Standard InChIKey: SNRUBQQJIBEYMU-UHFFFAOYSA-N
- CAS Registry Number: 112-40-3
- 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: n-Dodecane; Adakane 12; Ba 51-090453; CH3(CH2)10CH3; Bihexyl; Dihexyl; Duodecane; NSC 8714
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Data at other public NIST sites:
- Options:
Data at NIST subscription sites:
- NIST / TRC Web Thermo Tables, "lite" edition (thermophysical and thermochemical data)
- NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)
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.
Condensed phase thermochemistry data
Go To: Top, Phase change data, Gas phase ion energetics 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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°liquid | -352.1 ± 1.4 | kJ/mol | Ccb | Prosen and Rossini, 1945 | ALS |
ΔfH°liquid | -349.3 ± 3.2 | kJ/mol | Ccb | Prosen and Rossini, 1945, 2 | Heat of formation derived by Cox and Pilcher, 1970; ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -7901.74 | kJ/mol | Ccb | Gollis, Belenyessy, et al., 1962 | Corresponding ΔfHºliquid = -536.17 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS |
ΔcH°liquid | -8086.0 ± 1.2 | kJ/mol | Ccb | Prosen and Rossini, 1945 | Corresponding ΔfHºliquid = -352.0 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS |
ΔcH°liquid | -8083.2 | kJ/mol | Ccb | Jessup, 1937 | Corresponding ΔfHºliquid = -354.7 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS |
ΔcH°liquid | -8090.6 ± 7.9 | kJ/mol | Ccb | Banse and Parks, 1933 | Reanalyzed by Cox and Pilcher, 1970, Original value = -8078.34 kJ/mol; Corresponding ΔfHºliquid = -347.3 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°liquid | 490.66 | J/mol*K | N/A | Finke, Gross, et al., 1954 | DH |
S°liquid | 497.1 | J/mol*K | N/A | Huffman, Parks, et al., 1931 | Extrapolation below 90 K, 105.1 J/mol*K.; DH |
Constant pressure heat capacity of liquid
Cp,liquid (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
376.00 | 298.15 | Trejo, Costas, et al., 1991 | DH |
372.12 | 298.15 | Lainez, Rodrigo, et al., 1989 | DH |
376.46 | 298.15 | Andreoli-Ball, Patterson, et al., 1988 | DH |
376.09 | 298.15 | Costas, Huu, et al., 1988 | DH |
376.00 | 298.15 | Perez-Casas, Aicart, et al., 1988 | DH |
375.37 | 298.15 | Benson and D'Arcy, 1986 | DH |
376.00 | 298.15 | Tardajos, Aicart, et al., 1986 | DH |
373.30 | 298.15 | Wilhelm, Lainez, et al., 1986 | DH |
376.91 | 298.15 | Costas and Patterson, 1985 | T = 283.15, 298.15, 313.15 K.; DH |
373.30 | 298.15 | Lainez, Rodrigo, et al., 1985 | DH |
375.26 | 298.15 | Grolier and Benson, 1984 | DH |
375.30 | 298.15 | Kumaran, Benson, et al., 1984 | DH |
374.93 | 298.15 | Roux, Grolier, et al., 1984 | DH |
374.5 | 298. | Zaripov, 1982 | T = 298, 323, 363 K.; DH |
374.82 | 298.15 | Grolier, Inglese, et al., 1981 | DH |
370.72 | 298.15 | Kalinowska and Woycicka, 1973 | DH |
375.93 | 298.15 | Finke, Gross, et al., 1954 | T = 12 to 320 K.; DH |
371.1 | 297.7 | Huffman, Parks, et al., 1931 | T = 93 to 298 K. Value is unsmoothed experimental datum.; DH |
Phase change data
Go To: Top, Condensed phase thermochemistry data, Gas phase ion energetics 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 as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 489. ± 2. | K | AVG | N/A | Average of 22 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 263.5 ± 0.3 | K | AVG | N/A | Average of 35 out of 45 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 263.57 ± 0.05 | K | AVG | N/A | Average of 7 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 658.2 ± 0.9 | K | AVG | N/A | Average of 10 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 18. ± 1. | bar | N/A | Ambrose and Tsonopoulos, 1995 | |
Pc | 18.10 | bar | N/A | Rosenthal and Teja, 1989 | Uncertainty assigned by TRC = 0.20 bar; TRC |
Pc | 18.34 | bar | N/A | Teja, Lee, et al., 1989 | TRC |
Pc | 18.60 | bar | N/A | Pak and Kay, 1972 | Uncertainty assigned by TRC = 0.1378 bar; corrected for vapor pressure of Hg, and extrapolated to zero time to correct for decomposition; TRC |
Pc | 18.24 | bar | N/A | Ambrose and Townsend, 1968 | Uncertainty assigned by TRC = 0.10 bar; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Vc | 0.754 | l/mol | N/A | Ambrose and Tsonopoulos, 1995 | |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 1.3 ± 0.1 | mol/l | N/A | Ambrose and Tsonopoulos, 1995 | |
ρc | 1.33 | mol/l | N/A | Anselme, Gude, et al., 1990 | Uncertainty assigned by TRC = 0.04 mol/l; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 61. ± 1. | kJ/mol | AVG | N/A | Average of 12 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 100.2 | kJ/mol | B | Morawetz, 1972 | AC |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
61.4 | 299. | C | Viton, Chavret, et al., 1996 | AC |
58.1 | 334. | C | Viton, Chavret, et al., 1996 | AC |
57.4 | 344. | C | Viton, Chavret, et al., 1996 | AC |
65.7 | 278. | N/A | Sasse, Jose, et al., 1988 | Based on data from 263. to 371. K.; AC |
61.8 | 293. | A | Stephenson and Malanowski, 1987 | Based on data from 278. to 400. K.; AC |
51.6 | 415. | A,MM | Stephenson and Malanowski, 1987 | Based on data from 400. to 492. K. See also Willingham, Taylor, et al., 1945.; AC |
61.1 | 313. | GS | Allemand, Jose, et al., 1986 | Based on data from 298. to 389. K.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
View plot Requires a JavaScript / HTML 5 canvas capable browser.
Temperature (K) | A | B | C | Reference |
---|---|---|---|---|
399.53 to 490.49 | 4.10549 | 1625.928 | -92.839 | Williamham, Taylor, et al., 1945 |
Enthalpy of sublimation
ΔsubH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
101.7 | 263. | B | Bondi, 1963 | AC |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
36.836 | 263.59 | N/A | Finke, Gross, et al., 1954 | DH |
35.7 | 263.1 | DSC | Mondieig, Rajabalee, et al., 2004 | AC |
36.82 | 263.6 | N/A | Domalski and Hearing, 1996 | AC |
36.581 | 263.5 | N/A | Huffman, Parks, et al., 1931 | DH |
Entropy of fusion
ΔfusS (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
139.75 | 263.59 | Finke, Gross, et al., 1954 | DH |
138.8 | 263.5 | Huffman, Parks, et al., 1931 | DH |
Gas phase ion energetics data
Go To: Top, Condensed phase thermochemistry data, 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: Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C6H12+ | 10.40 | ? | EI | Lewis and Hamill, 1970 |
Mass spectrum (electron ionization)
Go To: Top, Condensed phase thermochemistry data, Phase change 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
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 | NIST Mass Spectrometry Data Center, 1998. |
NIST MS number | 291499 |
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Prosen and Rossini, 1945
Prosen, E.J.; Rossini, F.D.,
Heats of combustion and formation of the paraffin hydrocarbons at 25° C,
J. Res. NBS, 1945, 263-267. [all data]
Prosen and Rossini, 1945, 2
Prosen, E.J.; Rossini, F.D.,
Heats of formation and combustion of 1,3-butadiene and styrene,
J. Res. NBS, 1945, 34, 59-63. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Gollis, Belenyessy, et al., 1962
Gollis, M.H.; Belenyessy, L.I.; Gudzinowicz, B.J.; Koch, S.D.; Smith, J.O.; Wineman, R.J.,
Evaluation of pure hydrocarbons as jet fuels,
J. Chem. Eng. Data, 1962, 7, 331-316. [all data]
Jessup, 1937
Jessup, R.S.,
Heats of combustion of the liquid normal paraffin hydrocarbons from hexane to dodecane,
J. Res. NBS, 1937, 18, 114-128. [all data]
Banse and Parks, 1933
Banse, H.; Parks, G.S.,
Thermal data on organic compounds. XII. The heats of combustion of nine hydrocarbons,
J. Am. Chem. Soc., 1933, 55, 3223-3227. [all data]
Finke, Gross, et al., 1954
Finke, H.L.; Gross, M.E.; Waddington, G.; Huffman, H.M.,
Low-temperature thermal data for the nine normal paraffin hydrocarbons from octane to hexadecane,
J. Am. Chem. Soc., 1954, 76, 333-341. [all data]
Huffman, Parks, et al., 1931
Huffman, H.M.; Parks, G.S.; Barmore, M.,
Thermal data on organic compounds. X. Further studies on the heat capacities, entropies and free energies of hydrocarbons,
J. Am. Chem. Soc., 1931, 53, 3876-3888. [all data]
Trejo, Costas, et al., 1991
Trejo, L.M.; Costas, M.; Patterson, D.,
Excess heat capacity of organic mixtures, Internat. DATA Series,
Selected Data Mixt., 1991, Ser. [all data]
Lainez, Rodrigo, et al., 1989
Lainez, A.; Rodrigo, M.M.; Wilhelm, E.; Grolier, J.-P.E.,
Excess volumes and excess heaat capacitiies of some mixtures with trans,trans,cis-1,5,9-cyclododecatriene at 298.15K,
J. Chem. Eng. Data, 1989, 34, 332-335. [all data]
Andreoli-Ball, Patterson, et al., 1988
Andreoli-Ball, L.; Patterson, D.; Costas, M.; Caceres-Alonso, M.,
Heat capacity and corresponding states in alkan-1-ol-n-alkane systems, J. Chem. Soc.,
Faraday Trans. 1, 1988, 84(11), 3991-4012. [all data]
Costas, Huu, et al., 1988
Costas, M.; Huu, V.T.; Patterson, D.; Caceres-Alonso, M.; Tardajos, G.; Aicart, E.,
Liquid structure and second-order mixing functions for l-chloronaphthalene with linear and branched alkanes, J. Chem. Soc.,
Faraday Trans., 1988, 1 84(5), 1603-1616. [all data]
Perez-Casas, Aicart, et al., 1988
Perez-Casas, S.; Aicart, E.; Trojo, L.M.; Costas, M.,
Excess heat capacity. Chlorobenzene-2,2,4,4,6,8,8-heptamethylnonane, Int. Data Ser.,
Sel. Data Mixtures, 1988, (2)A, 123. [all data]
Benson and D'Arcy, 1986
Benson, G.C.; D'Arcy, P.J.,
Heat capacities of binary mixtures of n-dodecane with hexane isomers,
Thermochim. Acta, 1986, 102, 75-81. [all data]
Tardajos, Aicart, et al., 1986
Tardajos, G.; Aicart, E.; Costas, M.; Patterson, D.,
Liquid structure and second-order mixing functions for benzene, toluene, and p-xylene with n-alkanes, J. Chem. Soc.,
Faraday Trans., 1986, 1 82, 2977-2987. [all data]
Wilhelm, Lainez, et al., 1986
Wilhelm, E.; Lainez, A.; Roux, A.H.; Grolier, J.-P.E.,
Excess-molar volumes and heat capacities of (1,2,4-trichlorobenzene + an n-alkane) and (1-chloronaphthalene + an n-alkane),
Thermochim. Acta, 1986, 105, 101-110. [all data]
Costas and Patterson, 1985
Costas, M.; Patterson, D.,
Self-association of alcohols in inert solvents, J. Chem. Soc.,
Faraday Trans. 1, 1985, 81, 635-654. [all data]
Lainez, Rodrigo, et al., 1985
Lainez, A.; Rodrigo, M.; Roux, A.H.; Grolier, J.-P.E.; Wilhelm, E.,
Relations between structure and thermodynamic properties. Heat capacities of polar substances (nitrobenzene and benzonitrile) in alkane solutions,
Calorim. Anal. Therm., 1985, 16, 153-158. [all data]
Grolier and Benson, 1984
Grolier, J.-P.E.; Benson, G.C.,
Thermodynamic properties of binary mixtures containing ketones. VIII. Heat capacities and volumes of some n-alkanone + n-alkane mixtures at 298.15 K,
Can. J. Chem., 1984, 62, 949-953. [all data]
Kumaran, Benson, et al., 1984
Kumaran, M.K.; Benson, G.C.; D'Arcy, P.J.; Halpin, C.J.,
Speed of sound, molar volume, and molar isobaric heat capacity for binary liquid mixtures: analysis in terms of van der Waal's one-fluid theory,
J. Chem. Thermodynam., 1984, 16, 1181-1189. [all data]
Roux, Grolier, et al., 1984
Roux, A.H.; Grolier, J.-P.E.; Inglese, A.; Wilhelm, E.,
Excess molar enthalpies, excess molar heat capacities and excess molar volumes of (fluorobenzene + an n-alkane),
Ber. Bunsenges. Phys. Chem., 1984, 88, 986-992. [all data]
Zaripov, 1982
Zaripov, Z.I.,
Experimental study of the isobaric heat capacity of liquid organic compounds with molecular weights of up to 4000 a.e.m., 1982, Teplomassoobmen Teplofiz. [all data]
Grolier, Inglese, et al., 1981
Grolier, J.P.E.; Inglese, A.; Roux, A.H.; Wilhelm, E.,
Thermodynamics of (1-chloronaphthalene + n-alkane): excess enthalpies, excess volumes and excess heat capacities,
Ber. Bunsenges. Phys. Chem., 1981, 85, 768-772. [all data]
Kalinowska and Woycicka, 1973
Kalinowska, B.; Woycicka, M.,
Excess heat capacities of dilute solutions of n-hexanol in n-alkanes,
Bull. Aca. Pol. Sci. (Ser. Sci. Chim.), 1973, 21(11), 845-848. [all data]
Ambrose and Tsonopoulos, 1995
Ambrose, D.; Tsonopoulos, C.,
Vapor-Liquid Critical Properties of Elements and Compounds. 2. Normal Alkenes,
J. Chem. Eng. Data, 1995, 40, 531-546. [all data]
Rosenthal and Teja, 1989
Rosenthal, D.J.; Teja, A.S.,
The Critical Properties of n-Alkanes Using a Low-Residence Time Flow Apparatus,
AIChE J., 1989, 35, 1829. [all data]
Teja, Lee, et al., 1989
Teja, A.S.; Lee, R.J.; Rosenthal, D.J.; Anselme, M.J.,
Correlation of the Critical Properties of Alkanes and Alkanols
in 5th IUPAC Conference on Alkanes and AlkanolsGradisca, 1989. [all data]
Pak and Kay, 1972
Pak, S.C.; Kay, W.B.,
Gas-Liquid Critical Temperatures of Mixtures. Benzene + n-Alkanes and Hexafluorobenzene + n-Alkanes,
Ind. Eng. Chem. Fundam., 1972, 11, 255. [all data]
Ambrose and Townsend, 1968
Ambrose, D.; Townsend, R.,
Critical Temperatures and Pressures of Some Alkanes,
Trans. Faraday Soc., 1968, 64, 2622. [all data]
Anselme, Gude, et al., 1990
Anselme, M.J.; Gude, M.; Teja, A.S.,
The Critical Temperatures and Densities of the n-Alkanes from Pentane to Octadecane,
Fluid Phase Equilib., 1990, 57, 317-26. [all data]
Morawetz, 1972
Morawetz, Ernst,
Correlation of sublimation enthalpies at 298.15 K with molecular structure for planar aromatic hydrocarbons,
The Journal of Chemical Thermodynamics, 1972, 4, 3, 461-467, https://doi.org/10.1016/0021-9614(72)90030-4
. [all data]
Viton, Chavret, et al., 1996
Viton, C.; Chavret, M.; Jose, J.,
Enthalpies of vaporization of normal alkanes from nonane to pentadecane at temperatures from 298 to 359 K,
ELDATA: Int. Electron. J. Phys. Chem. Data, 1996, 2, 3, 103. [all data]
Sasse, Jose, et al., 1988
Sasse, Karim; Jose, Jacques; Merlin, Jean-Claude,
A static apparatus for measurement of low vapor pressures. Experimental results on high molecular-weight hydrocarbons,
Fluid Phase Equilibria, 1988, 42, 287-304, https://doi.org/10.1016/0378-3812(88)80065-7
. [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]
Willingham, Taylor, et al., 1945
Willingham, C.B.; Taylor, W.J.; Pignocco, J.M.; Rossini, F.D.,
Vapor pressures and boiling points of some paraffin, alkylcyclopentane, alkylcyclohexane, and alkylbenzene hydrocarbons,
J. RES. NATL. BUR. STAN., 1945, 35, 3, 219-17, https://doi.org/10.6028/jres.035.009
. [all data]
Allemand, Jose, et al., 1986
Allemand, Nadine; Jose, Jacques; Merlin, J.C.,
Mesure des pressions de vapeur d'hydrocarbures C10 A C18n-alcanes etn-alkylbenzenes dans le domaine 3-1000 pascal,
Thermochimica Acta, 1986, 105, 79-90, https://doi.org/10.1016/0040-6031(86)85225-X
. [all data]
Williamham, Taylor, et al., 1945
Williamham, C.B.; Taylor, W.J.; Pignocco, J.M.; Rossini, F.D.,
Vapor Pressures and Boiling Points of Some Paraffin, Alkylcyclopentane, Alkylcyclohexane, and Alkylbenzene Hydrocarbons,
J. Res. Natl. Bur. Stand. (U.S.), 1945, 35, 3, 219-244, https://doi.org/10.6028/jres.035.009
. [all data]
Bondi, 1963
Bondi, A.,
Heat of Siblimation of Molecular Crystals: A Catalog of Molecular Structure Increments.,
J. Chem. Eng. Data, 1963, 8, 3, 371-381, https://doi.org/10.1021/je60018a027
. [all data]
Mondieig, Rajabalee, et al., 2004
Mondieig, D.; Rajabalee, F.; Metivaud, V.; Oonk, H.A.J.; Cuevas-Diarte, M.A.,
n -Alkane Binary Molecular Alloys,
Chem. Mater., 2004, 16, 5, 786-798, https://doi.org/10.1021/cm031169p
. [all data]
Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D.,
Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III,
J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985
. [all data]
Lewis and Hamill, 1970
Lewis, D.; Hamill, W.H.,
Excited states of neutral molecular fragments from appearance potentials by electron impact in a mass spectrometer,
J. Chem. Phys., 1970, 52, 6348. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), References
- Symbols used in this document:
AE Appearance energy Cp,liquid Constant pressure heat capacity of liquid Pc Critical pressure S°liquid Entropy of liquid at standard conditions Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point Ttriple Triple point temperature Vc Critical volume ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔsubH Enthalpy of sublimation ΔsubH° Enthalpy of sublimation at standard conditions ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions ρc Critical density - 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.