Main page (Russian)
Search in database (English)
Properties of substance:
propionic acid
Physical appearance:
colorless liquidEmpirical formula (Hill's system for organic substances):
C3H6O2Structural formula as text:
CH3CH2COOHMolar/atomic mass: 74.079
Melting point (°C):
-20.8Boiling point (°C):
141.1Solubility (g/100 g of solvent):
liquid ammonia: soluble [Ref.]
water: miscible [Ref.]
diethyl ether: miscible [Ref.]
hydrogen fluoride : very soluble [Ref.]
chloroform: miscible [Ref.]
ethanol: miscible [Ref.]
Density:
0.992 (20°C, g/cm3)
Index of refraction:
1.3874 (20°C)
Vapour pressure (Torr):
10 (41.65°C)
Dissociation:
pKa (1) = 4.874 (25°C, water)
pKa (1) = 7.02 (20°C, formamide)
Dipole moment (D):
1.75 (20°C)
Viscosity (mPa·s):
1.102 (20°C)
Surface tension (mN/m):
26.7 (20°C)
Standard molar enthalpy (heat) of formation ΔfH0 (298.15 K, kJ/mol):
-510.7 (l)Standard molar entropy S0 (298.15 K, J/mol·K):
191 (l)Molar heat capacity at constant pressure Cp (298.15 K, J/mol·K):
152.8 (l)Heat of combustion (kJ/mol):
1536.4Standard molar enthalpy (heat) of formation ΔfH0 (298.15 K, kJ/mol):
-455.7 (g)LD50 (mg/kg):
1510 (, oral)
1370 (white mice, oral)
Critical temperature (°C):
388.5Critical pressure (MPa):
5.36References:
- CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-24
- Seidell A. Solubilities of organic compounds. - 3ed., vol.2. - New York: D. Van Nostrand Company, 1941. - pp. 186-193
- Альберт А., Сержент Е. Константы ионизации кислот и оснований. - М.-Л.: Химия, 1964. - pp. 118
- Березов Т.Т., Коровкин Б.Ф. Биологическая химия. - М.: Медицина, 1988. - pp. 377-378
- Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 176
- Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 389
- Химическая энциклопедия. - Т. 4. - М.: Советская энциклопедия, 1995. - pp. 107-108
What information do you need?
© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru