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Properties of substance:

calcium nitrate

Group of substances:

inorganic

Physical appearance:

colorless cubic crystals

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

CaN2O6

Structural formula as text:

Ca(NO3)2

Molar/atomic mass: 164.09

Melting point (°C):

561

Decomposition temperature (°C):

561

Solubility (g/100 g of solvent):

1-propanol: 57.5 (25°C) [Ref.]
2-propanol: 2.67 (25°C) [Ref.]
acetic acid: 23.33 (30.3°C) [Ref.]
acetic acid: 26.69 (33.9°C) [Ref.]
acetone: 20.9 (0°C) [Ref.]
acetone: 16.8 (20°C) [Ref.]
acetone: 18.3 (50°C) [Ref.]
ammonia liquid : 62.7 (-63°C) [Ref.]
ammonia liquid : 82.8 (0°C) [Ref.]
ammonia liquid : 89.2 (14°C) [Ref.]
amyl alcohol: 6.9 (25°C) [Ref.]
benzonitrile: insoluble [Ref.]
dimethylamine: insoluble [Ref.]
ethanol abs.: 46.2 (10°C) [Ref.]
ethanol abs.: 51.4 (20°C) [Ref.]
ethanol abs.: 56.2 (30°C) [Ref.]
ethanol abs.: 62.9 (40°C) [Ref.]
ethanol abs.: 73.5 (50°C) [Ref.]
ethanol abs.: 82.1 (60°C) [Ref.]
ethanol abs.: 90.1 (70°C) [Ref.]
ethanol abs.: 91.8 (80°C) [Ref.]
ethyl acetate: soluble [Ref.]
i-butanol: 33.3 (25°C) [Ref.]
methanol: 134.1 (10°C) [Ref.]
methanol: 144.2 (40°C) [Ref.]
methanol: 158 (60°C) [Ref.]
methanol: 168.5 (70°C) [Ref.]
methanol: 170.7 (72°C) [Ref.]
methanol: 171.1 (73°C) [Ref.]
methanol: 169.3 (80°C) [Ref.]
methyl acetate: 69.5 (18°C) [Ref.]
methylal: insoluble [Ref.]
methylamine: soluble [Ref.]
nitric acid: 0.01 (25°C) [Ref.]
pyridine: 5.75 (25°C) [Ref.]
trimethylamine: insoluble [Ref.]
urea: 89.4 (142.2°C) [Ref.]
water: 102 (0°C) [Ref.]
water: 114.6 (10°C) [Ref.]
water: 128.8 (20°C) [Ref.]
water: 138.1 (25°C) [Ref.]
water: 149.4 (30°C) [Ref.]
water: 189 (40°C) [Ref.]
water: 359 (60°C) [Ref.]
water: 363 (100°C) [Ref.]
water: 376 (150°C) [Ref.]
water: 413 (200°C) [Ref.]

Multicomponent solubility (in wt%):

water 34.8%, ammonium nitrate 65.2%, calcium nitrate 0.%, 20 °C, separating phase: NH4NO3 [Ref.]
water 34.6%, ammonium nitrate 58.%, calcium nitrate 7.4%, 20 °C, separating phase: NH4NO3 [Ref.]
water 33.6%, ammonium nitrate 37.4%, calcium nitrate 39.%, 20 °C, separating phase: NH4NO3 [Ref.]
water 24.9%, ammonium nitrate 29.5%, calcium nitrate 45.6%, 20 °C, separating phase: Ca(NO3)2 * NH4NO3 * 2H2O + 5Ca(NO3)2 * NH4NO3 * 10H2O [Ref.]
water 35.4%, ammonium nitrate 13.3%, calcium nitrate 51.3%, 20 °C, separating phase: Ca(NO3)2 * 4H2O [Ref.]
water 45.3%, ammonium nitrate 0.%, calcium nitrate 54.7%, 20 °C, separating phase: Ca(NO3)2 * 4H2O [Ref.]

Hygroscopic:

yes

Density:

2.36 (20°C, g/cm3)

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

-937.2 (s)

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

-742 (s)

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

193.3 (s)

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

149.33 (s)

Molar enthalpy (heat) of fusion ΔfusH (kJ/mol):

21.3

References:

  1. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 303-309
  2. Вредные вещества в промышленности: Справочник для химиков, инженеров и врачей. - 7-е изд., Т.3. - Л.: Химия, 1976. - pp. 120 [Russian]
  3. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 71 [Russian]
  4. Справочник азотчика. - М.: Химия, 1987. - pp. 201-205 [Russian]
  5. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 248, 786-790 [Russian]
  6. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 76-77 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru