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Properties of substance:

cobalt(II) chloride

Synonyms:

cobalt chloride

Group of substances:

inorganic

Physical appearance:

trigonal crystals

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

Cl2Co

Structural formula as text:

CoCl2

Molar/atomic mass: 129.84

Melting point (°C):

724

Boiling point (°C):

1049

Solubility (g/100 g of solvent):

acetic acid: soluble [Ref.]
acetone: 9.11 (0°C) [Ref.]
acetone: 9.28 (22.5°C) [Ref.]
acetone: 7.25 (50°C) [Ref.]
acetonitrile: 4.08 (18°C) [Ref.]
ammonia liquid : insoluble [Ref.]
benzonitrile: soluble [Ref.]
diethyl ether: 0.021 (20°C) [Ref.]
ethanol abs.: 45 (0°C) [Ref.]
ethanol abs.: 48.6 (10°C) [Ref.]
ethanol abs.: 54.4 (20°C) [Ref.]
ethanol abs.: 62.6 (30°C) [Ref.]
ethanol abs.: 67.4 (40°C) [Ref.]
ethanol abs.: 65.1 (50°C) [Ref.]
ethanol abs.: 66.8 (60°C) [Ref.]
ethanol abs.: 72.9 (70°C) [Ref.]
ethanol abs.: 70.3 (80°C) [Ref.]
ethyl acetate: 0.08 (14°C) [Ref.]
ethyl acetate: 0.26 (79°C) [Ref.]
ethyl carbamate: soluble [Ref.]
ethylene glycol : 12 (20°C) [Ref.]
formic acid 95%: 6.2 (20.5°C) [Ref.]
hydrazine: 1 (15°C) [Ref.]
methanol: 38.5 (20°C) [Ref.]
methanol: 43.6 (25°C) [Ref.]
methanol: 46.5 (28°C) [Ref.]
methanol: 48.8 (30°C) [Ref.]
methanol: 55.5 (35°C) [Ref.]
methanol: 58.9 (37°C) [Ref.]
methanol: 58.8 (38°C) [Ref.]
methanol: 58.2 (40°C) [Ref.]
methanol: 58.9 (50°C) [Ref.]
methyl acetate: 0.369 (18°C) [Ref.]
propylene carbonate: 0.0845 (25°C) [Ref.]
pyridine: 0.433 (0°C) [Ref.]
pyridine: 0.578 (25°C) [Ref.]
pyridine: 1.342 (60°C) [Ref.]
pyridine: 14.34 (106°C) [Ref.]
quinoline: soluble [Ref.]
selenium(IV) oxychloride: 0.17 (25°C) [Ref.]
sulfur dioxide: 0.013 (0°C) [Ref.]
water: 43.5 (0°C) [Ref.]
water: 47.7 (10°C) [Ref.]
water: 52.9 (20°C) [Ref.]
water: 56.2 (25°C) [Ref.]
water: 59.7 (30°C) [Ref.]
water: 69.5 (40°C) [Ref.]
water: 93.8 (60°C) [Ref.]
water: 97.6 (80°C) [Ref.]
water: 106.2 (100°C) [Ref.]

Hygroscopic:

yes

Density:

3.36 (20°C, g/cm3)

Vapour pressure (Torr):

1 (660°C)
100 (880°C)

Standard molar enthalpy (heat) of formation ΔfH (298 K, kJ/mol)

-312.5 (s) [Ref.]
-271.5 (l) [Ref.]
-93.7 (g) [Ref.]

Standard molar Gibbs energy of formation ΔfG (298 K, kJ/mol)

-269.8 (s) [Ref.]

Standard molar entropy S (298 K, J/(mol·K))

109.3 (s) [Ref.]
149 (l) [Ref.]
298.5 (g) [Ref.]

Molar heat capacity at constant pressure Cp (298 K, J/(mol·K))

78.49 (l) [Ref.]
78.5 (s) [Ref.]
57.3 (g) [Ref.]

Enthalpy (heat) of fusion ΔfusH (kJ/mol)

38 (s) [Ref.]

Enthalpy (heat) of vaporization at boiling point ΔvapH (kJ/mol)

145 (l) [Ref.]

LD50 (mg/kg):

60 (rats, intraperitoneal)

Neel temperature (K):

25

References:

  1. Journal of the American Chemical Society. - 1952. - Vol. 74, No. 11. - pp. 2752-2754
  2. Recueil des Travaux Chimiques des Pays-Bas. - 1966. - Vol. 85, No. 4. - pp. 397-404 [DOI: 10.1002/recl.19660850411]
  3. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 405-417
  4. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 74 [Russian]
  5. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 352 [Russian]
  6. Справочник по растворимости. - Т.1, Кн.2. - М.-Л.: ИАН СССР, 1962. - pp. 1004-1007 [Russian]
  7. Фурман А.А. Неорганические хлориды (химия и технология). - М.: Химия, 1980. - pp. 405-408 [Russian]
  8. Химическая технология неорганических веществ. - Кн.2, под ред. Ахметова Т.Г. - М.: Высшая школа, 2002. - pp. 476-477 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru