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Properties of substance:

tetraamminecopper(II) sulfate monohydrate

Group of substances:

inorganic

Physical appearance:

blue rhombic crystals

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

H14CuN4O5S

Structural formula as text:

[Cu(NH3)4]SO4 * H2O

Molar/atomic mass: 245.74

Decomposition temperature (°C):

200

Solubility (g/100 g of solvent):

ethanol: insoluble [Ref.]
water: 18.5 (21.5°C) [Ref.]

Density:

1.81 (20°C, g/cm3)

Reactions:

  1. [Ref.1]
    [Cu(NH3)4]SO4 * H2O + 3H2S → CuS + (NH4)2SO4 + 2NH4HS + H2O

Electrode potential:

Cu(NH3)42+ + 2e- → Cu + 4NH3, E = -0.05 V (water, 25°C)

References:

  1. Galwey A.K., Brown M.E. Thermal Decomposition of Ionic Solids. - Elsevier, 1999. - pp. 509
  2. Гороновский И.Т., Назаренко Ю.П., Некряч Е.Ф. Краткий справочник по химии. - 5 изд. - Киев: Наукова думка, 1987. - pp. 264-265 [Russian]
  3. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 126-127 [Russian]
  4. Энциклопедия для детей. - Т.17: Химия. - М.: Аванта+, 2004. - pp. 166 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru