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Properties of substance:
sodium nitrite
Group of substances:
inorganic
Physical appearance:
colorless rhombic crystals
Empirical formula (Hill's system for organic substances):
NNaO
2
Structural formula as text:
NaNO2
Molar/atomic mass: 68.995
Melting point (°C):
271
Decomposition temperature (°C):
320
Solubility (g/100 g of solvent):
ammonia liquid
: 79.02 (-33°C) [
Ref.
]
ammonia liquid
: 87.37 (0°C) [
Ref.
]
dimethylsulfoxide
: 1 (25°C) [
Ref.
]
ethanol abs.
: 0.31 (19.5°C) [
Ref.
]
ethyl acetate
: insoluble [
Ref.
]
hydrazine
: 100 (20°C) [
Ref.
]
hydrogen peroxide
: 33.73 (11.8°C) [
Ref.
]
methanol
: 4.43 (19.5°C) [
Ref.
]
methyl acetate
: insoluble [
Ref.
]
pyridine
: very soluble [
Ref.
]
water
: 71.4 (0°C) [
Ref.
]
water
: 82.9 (20°C) [
Ref.
]
water
: 95.7 (40°C) [
Ref.
]
water
: 112.3 (60°C) [
Ref.
]
water
: 135.5 (80°C) [
Ref.
]
water
: 160 (100°C) [
Ref.
]
Density:
2.17 (20°C, g/cm
3
)
Viscosity (mPa·s):
3.04 (297°C)
2.31 (337°C)
Surface tension (mN/m):
121 (280°C)
113 (500°C)
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-359 (s)
Standard molar Gibbs energy of formation Δ
f
G
0
(298.15 K, kJ/mol):
-295 (s)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
106 (s)
LD
50
(mg/kg):
200.5 (rats, oral)
References:
Comey A. M., Hahn D. A. A dictionary of Chemical Solubilities Inorganic. - 2 ed. - New York, The MacMillan Company, 1921. - pp. 629-630
Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 1273-1275
Некрасов Б.В. Основы общей химии. - Т.2. - М.: Химия, 1973. - pp. 238 [Russian]
Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 84 [Russian]
Справочник азотчика. - М.: Химия, 1987. - pp. 221-222 [Russian]
Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 667-668 [Russian]
Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советская энциклопедия, 1983. - pp. 363 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru