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Properties of substance:
N,N-dimethylacetamide
Group of substances:
organic
Physical appearance:
colorless liquid
Empirical formula (Hill's system for organic substances):
C
4
H
9
NO
Structural formula as text:
CH3CON(CH3)2
Molar/atomic mass: 87.1204
Melting point (°C):
-20
Boiling point (°C):
165.5
Solubility (g/100 g of solvent):
organic solvents: soluble [
Ref.
]
water
: 52.89 (4.5°C) [
Ref.
]
Density:
0.9366 (25°C, g/cm
3
)
Refractive index (n
D
):
1.4356 (20°C)
Dissociation:
pK
BH
+
(1) = 0.19 (20°C, water)
Permittivity (dielectric constant):
37.8 (25°C)
Dipole moment (D):
3.79 (20°C)
Viscosity (mPa·s):
0.919 (25°C)
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-278.3 (l)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
175.6 (l)
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-228 (g)
LD
50
(mg/kg):
4300-5200 (rats, oral)
4200-4850 (mice, oral)
References:
CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-27
Yalkowsky S.H., Yan H., Jain P. Handbook of aqueous solubility data. – 2nd ed. - CRC Press, 2010. - pp. 121
Вредные вещества в промышленности: Справочник для химиков, инженеров и врачей. - 7-е изд., Т.2. - Л.: Химия, 1976. - pp. 39 [Russian]
Гутман В. Химия координационных соединений в неводных растворах. - М.: Мир, 1971. - pp. 196-197 [Russian]
Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 144 [Russian]
Свойства органических соединений: Справочник. - Под ред. Потехина А.А. - Л.: Химия, 1984. - pp. 358-359 [Russian]
Химическая энциклопедия. - Т. 2. - М.: Советская энциклопедия, 1990. - pp. 62 [Russian]
Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советская энциклопедия, 1983. - pp. 169 [Russian]
Шефтель В.О. Полимерные материалы: Токсические свойства. - Л.: Химия, 1982. - pp. 107-108 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru