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Properties of substance:

ammonium hydrogen carbonate

Synonyms:

ammonium bicarbonate

Group of substances:

inorganic

Physical appearance:

colorless rhombic crystals

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

CH5NO3

Structural formula as text:

NH4HCO3

Molar/atomic mass: 79.06

Decomposition temperature (°C):

70

Solubility (g/100 g of solvent):

acetone: insoluble [Ref.]
ammonia liquid : insoluble [Ref.]
ethanol: insoluble [Ref.]
ethyl acetate: insoluble [Ref.]
water: 11.9 (0°C) [Ref.]
water: 16.1 (10°C) [Ref.]
water: 21.7 (20°C) [Ref.]
water: 24.8 (25°C) [Ref.]
water: 28.4 (30°C) [Ref.]
water: 36.6 (40°C) [Ref.]

Density:

1.586 (20°C, g/cm3)

Vapour pressure (Torr):

59 (25.4°C)
278 (45°C)

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

-849.4 (s)

Standard molar Gibbs energy of formation ΔfG0 (298.15 K, kJ/mol):

-665.9 (s)

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

120.9 (s)

LD50 (mg/kg):

245 (mice, intravenous)

References:

  1. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-20
  2. Lewis R.J. Sax's Dangerous Properties of Industrial Materials. - 11ed. - Wiley-interscience, 2004. - pp. 229-230
  3. Milne G.W.A. Gardner's Commercially Important Chemicals. - Wiley-Interscience, 2005. - pp. 32
  4. Perry D.L. Handbook of Inorganic Compounds. - 2nd ed. - CRC Press, 2011. - pp. 25-26
  5. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 1065-1075
  6. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 53 [Russian]
  7. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 216 [Russian]
  8. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 26-27 [Russian]
  9. Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советская энциклопедия, 1983. - pp. 42 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru