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Properties of substance:

ammonium copper(II) chloride dihydrate

Group of substances:

inorganic

Physical appearance:

blue tetragonal crystals

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

H12Cl4CuN2O2

Structural formula as text:

(NH4)2CuCl4 * 2H2O

Molar/atomic mass: 277.47

Decomposition temperature (°C):

110

Solubility (g/100 g of solvent):

ethanol: soluble [Ref.]
water: 29.4 (0°C) [Ref.]
water: 40.3 (20°C) [Ref.]
water: 86.4 (80°C) [Ref.]

Density:

1.99 (20°C, g/cm3)

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

-1460 (s)

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

388.7 (s)

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

324.7 (s)

References:

  1. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 4-46
  2. Dean J.A. Lange's handbook of chemistry. - 1999. - pp. 3.14
  3. Perry D.L. Handbook of Inorganic Compounds. - 2nd ed. - CRC Press, 2011. - pp. 20
  4. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 98-99 [Russian]
  5. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 188 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru