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Properties of substance:

sodium cyanide

Group of substances:

inorganic

Physical appearance:

colorless cubic crystals

Empirical formula (Hill's system for organic substances):

CNNa

Structural formula as text:

NaCN

Molar/atomic mass: 49.01

Melting point (°C):

563.7

Boiling point (°C):

1497

Solubility (g/100 g of solvent):

acetone: insoluble [Ref.]
ammonia liquid : 3.8 (-33°C) [Ref.]
ammonia liquid : 40.3 (10°C) [Ref.]
dimethylformamide: 0.76 (25°C) [Ref.]
dimethylsulfoxide: insoluble [Ref.]
ethanol: 1.235 (25°C) [Ref.]
methanol: 6.44 (15°C) [Ref.]
methanol: 4.1 (67.4°C) [Ref.]
sulfur dioxide: 0.018 (0°C) [Ref.]
water: 35.4 (-20°C) [Ref.]
water: 43.4 (0°C) [Ref.]
water: 48.15 (10°C) [Ref.]
water: 58.2 (20°C) [Ref.]
water: 63.7 (25°C) [Ref.]
water: 71.5 (30°C) [Ref.]
water: 81.8 (35°C) [Ref.]
water: 82.5 (55°C) [Ref.]

Hygroscopic:

yes

Density:

1.5955 (20°C, g/cm3)

Reactions:

  1. [Ref.1]
    NaCN + B2H6 + O(CH2CH2)2O → NaBH3CNBH3 * O(CH2CH2)2O

Standard molar enthalpy (heat) of formation ΔfH0 (298.15 K, kJ/mol):

-91 (s)

Standard molar entropy S0 (298.15 K, J/(mol·K)):

115.7 (s)

Molar heat capacity at constant pressure Cp (298.15 K, J/(mol·K)):

70.4 (s)

Molar enthalpy (heat) of fusion ΔfusH (kJ/mol):

18

LD50 (mg/kg):

1.65 (mens, oral)

References:

  1. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 1189-1190
  2. Вредные вещества в промышленности: Справочник для химиков, инженеров и врачей. - 7-е изд., Т.3. - Л.: Химия, 1976. - pp. 265-267 [Russian]
  3. Лидин Р.А., Андреева Л.Л., Молочко В.А. Константы неорганических веществ. - М.: Дрофа, 2006. - pp. 137 [Russian]
  4. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 86 [Russian]
  5. Реми Г. Курс неорганической химии. - Т.1. - М., 1963. - pp. 503 [Russian]
  6. Ситтиг М. Натрий, его производство, свойства и применение. - М.: ГИЛОАНТ, 1961. - pp. 217-220 [Russian]
  7. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 664 [Russian]
  8. Химическая энциклопедия. - Т. 3. - М.: Советская энциклопедия, 1992. - pp. 189 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru