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Properties of substance:

copper(II) sulfate pentahydrate

Group of substances:

inorganic

Physical appearance:

blue triclinic crystals

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

H10CuO9S

Structural formula as text:

CuSO4 * 5H2O

Molar/atomic mass: 249.68

Decomposition temperature (°C):

100-250

CAS №: 7758-99-8

Solubility (g/100 g of solvent):

ethanol 40%: 0.25 (20°C) [Ref.]
ethanol abs.: 1.1 (3°C) [Ref.]
ethylene glycol : 8.2 (14.6°C) [Ref.]
formic acid 95%: 0.05 (18.5°C) [Ref.]
glycerol: 30 (15.5°C) [Ref.]
methanol: 15.6 (18°C) [Ref.]
water: 35.6 (20°C) [Ref.]
water: 205 (100°C) [Ref.]

Density:

2.28 (20°C, g/cm3)

Reactions:

  1. [Ref.1]
    CuSO4 * 5H2O → CuSO4 + 5H2O
  2. [Ref.1]
    CuSO4 * 5H2O + 2NaOH → Cu(OH)2 + Na2SO4 + 5H2O
  3. [Ref.1]
    3CuSO4 + 4Na2SO3 + 2H2O → Cu2SO3 * CuSO3 * 2H2O + 4Na2SO4 + SO2

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

-2279.4 (s)

Standard molar Gibbs energy of formation ΔfG0 (298.15 K, kJ/mol):

-1879.9 (s)

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

300 (s)

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

281 (s)

LD50 (mg/kg):

300-520 (rats, oral)
43 (mice, oral)

References:

  1. CRC Handbook of Chemistry and Physics. - 95ed. - CRC Press, 2014. - pp. 4-62
  2. Comey A. M., Hahn D. A. A dictionary of Chemical Solubilities Inorganic. - 2 ed. - New York, The MacMillan Company, 1921. - pp. 962-967
  3. Milne G.W.A. Gardner's Commercially Important Chemicals. - Wiley-Interscience, 2005. - pp. 159
  4. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 497-516
  5. Беликов В.Г. Учебное пособие по фармацевтической химии. - М.: Медицина, 1979. - pp. 68 [Russian]
  6. Вредные химические вещества: Неорганические соединения элементов I-IV групп. Справочник. - Л.: Химия, 1988. - pp. 67 [Russian]
  7. Девяткин В.В., Ляхова Ю.М. Химия для любознательных, или о чем не узнаешь на уроке. - Ярославль: Академия Холдинг, 2000. - pp. 109 [Russian]
  8. Дорофеев А.И., Федотова М.И. Практикум по неорганической химии. - Л.: Химия, 1990. - pp. 166-169 [Russian]
  9. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 80 [Russian]
  10. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 124-125, 265 [Russian]
  11. Химическая энциклопедия. - Т. 2. - М.: Советская энциклопедия, 1990. - pp. 671 [Russian]
  12. Энциклопедия для детей. - Т.17: Химия. - М.: Аванта+, 2004. - pp. 166 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru