formic acid

formic acid; methanoic acid
In russian:муравьиная кислота
Links:🌍 Wikipedia, 📏 NIST, 🕷 ChemSpider,
📖Houben-Weyl, 2. Band (Ameisensäure); p. 121, 297, 418, 421, 460, 607, 714, 717, 989,
📖Org. Chem., v. Richter, 1. Vol (Acidum formicum); p. 236
CAS RN:[64-18-6]
Formula:CH2O2; 46.03 g/mol
Molecular structure of formic acid
Density:1.219 g/mL
Molar volume:37.8 mL/mol
Refractive index:1.370
Molecular refractive power:8.54 mL/mol
Dielectric constant:58.50
Dipole moment:1.42 D
Melting point:8 °C
Boiling point:101 °C
Vapour pressure:5 Torr
Antoine equation
P(Torr) vs T(°C)
Vapour pressure vs temperature
Critical temperature:315 °C
Critical pressure:8.6 atm
Solubility in water:100 % w/w
Solubility of water:100 % w/w
Log10 partition octanol / water:-0.54
Dimroth ET:57.7
Hansen solubility parameter:δd: 7.0 (cal/mL)½   δp: 5.8 (cal/mL)½   δh: 8.1 (cal/mL)½
100g dissolves:
670g benzene;    125g pentanedioic acid;    67g 2-hydroxy-2-phenylacetic acid;    56.74g acetanilide;    41.2g 1,3-dihydroxybenzene;    22.58g methyl oxalate;    22.42g malonic acid;    17.8g methylbutanedioic acid;    13.25g 2-nitrotoluene;    12.25g citric acid;    10.83g 2,4,6-trinitrophenol;    10.5g 1,3-dinitrobenzene;    8.68g camphoric acid;    6.07g 1,4-dihydroxybenzene;    4.67g phthalic anhydride;    4.04g hexanedioic acid;    3.19g (2E)-3-phenylprop-2-enoic acid;    3.06g benzoin;    2.13g octanedioic acid;    2.01g aconitic acid;    1.05g decanedioic acid;    0.56g 3,4,5-trihydroxybenzoic acid;    0.46g phenanthrene;    0.25g 2-naphthol;    0.14g indigo;    0.03g anthracene


Molecular structure of dioxirane
formic acid
Molecular structure of formic acid