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Properties of substance:

ammonium sulfite monohydrate

Group of substances:

inorganic

Physical appearance:

colorless monoclinic crystals

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

H10N2O4S

Structural formula as text:

(NH4)2SO3 * H2O

Molar/atomic mass: 134.155

Decomposition temperature (°C):

60

Solubility (g/100 g of solvent):

acetone: insoluble [Ref.]
ethanol: insoluble [Ref.]
water: 75 (20°C) [Ref.]

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

-1185.3 (s)

References:

  1. Dean J.A. Lange's handbook of chemistry. - 1999. - pp. 3.16
  2. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 98-99 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru