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Properties of substance:

ammonium formate

Synonyms:

ammonium methanoate

Group of substances:

inorganic

Physical appearance:

colorless monoclinic crystals

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

CH5NO2

Structural formula as text:

HCOONH4

Molar/atomic mass: 63.06

Melting point (°C):

116

Decomposition temperature (°C):

180

Solubility (g/100 g of solvent):

ammonia liquid : soluble [Ref.]
diethyl ether: soluble [Ref.]
ethanol: soluble [Ref.]
formic acid: 54.6 (-3°C) [Ref.]
formic acid: 68.4 (8.5°C) [Ref.]
formic acid: 100 (21.5°C) [Ref.]
formic acid: 73 (21.5°C) [Ref.]
formic acid: 137 (39°C) [Ref.]
formic acid: 271.7 (78°C) [Ref.]
formic acid: miscible (116°C) [Ref.]
water: 102 (0°C) [Ref.]
water: 143 (20°C) [Ref.]
water: 204 (40°C) [Ref.]
water: 311 (60°C) [Ref.]
water: 531 (80°C) [Ref.]

Hygroscopic:

yes

Density:

1.266 (20°C, g/cm3)

Standard molar enthalpy (heat) of formation ΔfH (298 K, kJ/mol)

-567.5 (s) [Ref.]

LD50 (mg/kg):

2250 (mice, oral)
410 (mice, intravenous)

References:

  1. Dean J.A. Lange's handbook of chemistry. - 1999. - pp. 3.15, 5.9
  2. Franzosini P., Sanesi M. Thermodynamic and transport properties of organic salts. - IUPAC Chemical Data Series, No. 28. - Pergamon Press, 1980. - pp. 72-73
  3. Lewis R.J. Sax's Dangerous Properties of Industrial Materials. - 11ed. - Wiley-interscience, 2004. - pp. 234
  4. Perry D.L. Handbook of Inorganic Compounds. - 2nd ed. - CRC Press, 2011. - pp. 23
  5. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 1055
  6. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 230, 747 [Russian]
  7. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 24-25 [Russian]
  8. Хёрд Ч.Д. Пиролиз соединений углерода. - Л.-М.: ГОНТИ РКТП СССР, 1938. - pp. 495 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru