Formic acid
- Formula: CH2O2
- Molecular weight: 46.0254
- IUPAC Standard InChI: InChI=1S/CH2O2/c2-1-3/h1H,(H,2,3)
- IUPAC Standard InChIKey: BDAGIHXWWSANSR-UHFFFAOYSA-N
- CAS Registry Number: 64-18-6
- 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: Methanoic acid; Aminic acid; Bilorin; Collo-Bueglatt; Collo-Didax; Formisoton; Formylic acid; Hydrogen carboxylic acid; Myrmicyl; HCOOH; Acide formique; Acido formico; Ameisensaeure; Kwas metaniowy; Kyselina mravenci; Mierenzuur; Rcra waste number U123; UN 1779; Formira; Add-F; Amasil
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Normal melting point
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
| Tfus (K) | Reference | Comment |
|---|---|---|
| 281.47 | Kohler, Atrops, et al., 1981 | Uncertainty assigned by TRC = 0.1 K; TRC |
| 281.5 | Sundaram, 1966 | Uncertainty assigned by TRC = 0.3 K; TRC |
| 281.55 | Johnson and Cole, 1951 | Uncertainty assigned by TRC = 0.2 K; TRC |
| 281.4 | Dreisbach and Martin, 1949 | Uncertainty assigned by TRC = 0.05 K; TRC |
| 280.85 | Bastic and Pushin, 1947 | Uncertainty assigned by TRC = 0.5 K; TRC |
| 281.55 | Lange, 1940 | Uncertainty assigned by TRC = 0.1 K; TRC |
| 282. | Timmermans, 1935 | Uncertainty assigned by TRC = 1.5 K; TRC |
| 281.7 | Joukovsky, 1934 | Uncertainty assigned by TRC = 1.5 K; TRC |
| 281.40 | Coolidge, 1930 | Uncertainty assigned by TRC = 0.3 K; TRC |
References
Go To: Top, Normal melting point, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Kohler, Atrops, et al., 1981
Kohler, F.; Atrops, H.; Kalali, H.; Liebermann, E.; Wilhelm, E.; Ratkovics, F.; Salamon, T.,
Molecular Interactions in Mistures of Carboxylic Acids with Amines 1. Melting Curves adn Viscosities,
J. Phys. Chem., 1981, 85, 2520-4. [all data]
Sundaram, 1966
Sundaram, K.M.S.,
A Physicochemical Study of Pyridine-Formic Acid System,
Z. Phys. Chem. (Leipzig), 1966, 233, 85-90. [all data]
Johnson and Cole, 1951
Johnson, J.F.; Cole, R.H.,
Dielectric Polarization of Liquid and Solid Formic Acid,
J. Am. Chem. Soc., 1951, 73, 4536. [all data]
Dreisbach and Martin, 1949
Dreisbach, R.R.; Martin, R.A.,
Physical Data on Some Organic Compounds,
Ind. Eng. Chem., 1949, 41, 2875-8. [all data]
Bastic and Pushin, 1947
Bastic, B.L.; Pushin, N.A.,
Melting diagrams of mixtures of formic acid,
Glas. Hem. Drus. Beograd, 1947, 128, 109. [all data]
Lange, 1940
Lange, J.,
The Electrochemistry of Nonaqueous Solutions II. Precise Measurements of Freezing Points and of Conductivities in Anhydrous Formic Acid,
Z. Phys. Chem., Abt. A, 1940, 187, 27. [all data]
Timmermans, 1935
Timmermans, J.,
Researches in Stoichiometry. I. The Heat of Fusion of Organic Compounds.,
Bull. Soc. Chim. Belg., 1935, 44, 17-40. [all data]
Joukovsky, 1934
Joukovsky, N.I.,
Experimental Study of the Theory of Concentrated Solutions. XI. Thermodynamic Properties of Concentrated Solutions of Aliphatic Organic Compounds Containing Nitrogen.,
Bull. Soc. Chim. Belg., 1934, 43, 397. [all data]
Coolidge, 1930
Coolidge, A.S.,
The vapor pressure and heats of fusion and vaporization of formic acid,
J. Am. Chem. Soc., 1930, 52, 1874. [all data]
Notes
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- Symbols used in this document:
Tfus Fusion (melting) point - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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