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Properties of substance:

ammonium magnesium arsenate hexahydrate

Group of substances:

inorganic

Physical appearance:

colorless rhombic crystals

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

H16AsMgNO10

Structural formula as text:

NH4MgAsO4 * 6H2O

Molar/atomic mass: 289.354

Decomposition temperature (°C):

800

Solubility (g/100 g of solvent):

ethanol: insoluble [Ref.]
water: 0.038 (20°C) [Ref.]

Density:

1.93 (15°C, g/cm3)

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

-3326.3 (s)

References:

  1. Comey A. M., Hahn D. A. A dictionary of Chemical Solubilities Inorganic. - 2 ed. - New York, The MacMillan Company, 1921. - pp. 61
  2. Dean J.A. Lange's handbook of chemistry. - 1999. - pp. 3.16
  3. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 98-99 [Russian]
  4. Лидин Р.А., Андреева Л.Л., Молочко В.А. Константы неорганических веществ. - М.: Дрофа, 2006. - pp. 128 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru