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Properties of substance:

calcium chloride

Group of substances:

inorganic

Physical appearance:

colorless rhombic crystals

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

CaCl2

Structural formula as text:

CaCl2

Molar/atomic mass: 110.99

Melting point (°C):

772

Boiling point (°C):

1600

Solubility (g/100 g of solvent):

γ-butyrolactone : 0.05 (25°C) [Ref.]
1-butanol: 16.18 (0°C) [Ref.]
1-butanol: 25.68 (20°C) [Ref.]
1-butanol: 34.77 (60°C) [Ref.]
1-propanol: 8.3 (0°C) [Ref.]
1-propanol: 11.88 (10°C) [Ref.]
1-propanol: 15.78 (20°C) [Ref.]
1-propanol: 34.86 (60°C) [Ref.]
acetamide: 33.9 (100°C) [Ref.]
acetamide: 37.2 (150°C) [Ref.]
acetic acid: 16.3 (20°C) [Ref.]
acetic acid: 19.5 (37°C) [Ref.]
acetic acid: 41 (70°C) [Ref.]
acetone: 0.0062 (0°C) [Ref.]
acetone: 0.01 (20°C) [Ref.]
acetone: 0.0213 (50°C) [Ref.]
ammonia liquid : insoluble [Ref.]
amyl alcohol: 7 (10°C) [Ref.]
amyl alcohol: 11.5 (20°C) [Ref.]
amyl alcohol: 34.37 (60°C) [Ref.]
benzonitrile: insoluble [Ref.]
benzylic alcohol: 2.1 (10°C) [Ref.]
benzylic alcohol: 1.82 (20°C) [Ref.]
benzylic alcohol: 1.26 (60°C) [Ref.]
carbon dioxide liquid: insoluble [Ref.]
dimethylsulfoxide: insoluble [Ref.]
ethanol: 18.3 (0°C) [Ref.]
ethanol: 25.8 (20°C) [Ref.]
ethanol: 35.3 (40°C) [Ref.]
ethanol: 56.2 (70°C) [Ref.]
ethanolamine: 14 (25°C) [Ref.]
ethyl acetate: insoluble [Ref.]
ethylene carbonate: 0.2 (40°C) [Ref.]
ethylene glycol : 20.5 (25°C) [Ref.]
ethylenediamine: insoluble [Ref.]
formic acid 95%: 43.1 (19°C) [Ref.]
hydrazine: 16 (20°C) [Ref.]
i-amyl alcohol: 3.04 (10°C) [Ref.]
i-amyl alcohol: 6.99 (20°C) [Ref.]
i-amyl alcohol: 31.58 (70°C) [Ref.]
i-butanol: very soluble [Ref.]
methanol: 21.8 (0°C) [Ref.]
methanol: 29.2 (20°C) [Ref.]
methanol: 38.5 (40°C) [Ref.]
propylene carbonate: 0.06 (25°C) [Ref.]
pyridine: 1.66 (25°C) [Ref.]
selenium(IV) oxychloride: 6.5 (25°C) [Ref.]
sulfur dioxide: 0.02 (25°C) [Ref.]
trichlorosilane: 0.0000329 [Ref.]
water: 59.5 (0°C) [Ref.]
water: 65 (10°C) [Ref.]
water: 74.5 (20°C) [Ref.]
water: 100 (30°C) [Ref.]
water: 115.5 (40°C) [Ref.]
water: 137 (60°C) [Ref.]
water: 147 (80°C) [Ref.]
water: 158 (100°C) [Ref.]
water: 205 (150°C) [Ref.]

Properties of solutions:

1% (wt.), solvent - water
  Density (g/cm3) = 1.007 (20°)
2% (wt.), solvent - water
  Density (g/cm3) = 1.0148 (20°)
4% (wt.), solvent - water
  Density (g/cm3) = 1.0316 (20°)
6% (wt.), solvent - water
  Density (g/cm3) = 1.0486 (20°)
8% (wt.), solvent - water
  Density (g/cm3) = 1.0659 (20°)
10% (wt.), solvent - water
  Dynamic viscosity (mPa·s) = 1.319 (20°)
  Density (g/cm3) = 1.0835 (20°)
  Index of refraction = 1.3575 (20°)
  Freezing point (°C) = -5.86
12% (wt.), solvent - water
  Density (g/cm3) = 1.1015 (20°)
14% (wt.), solvent - water
  Density (g/cm3) = 1.1198 (20°)
16% (wt.), solvent - water
  Density (g/cm3) = 1.1386 (20°)
18% (wt.), solvent - water
  Density (g/cm3) = 1.1578 (20°)
20% (wt.), solvent - water
  Density (g/cm3) = 1.1775 (20°)
25% (wt.), solvent - water
  Density (g/cm3) = 1.2284 (20°)
30% (wt.), solvent - water
  Dynamic viscosity (mPa·s) = 3.467 (20°)
  Density (g/cm3) = 1.2816 (20°)
  Index of refraction = 1.4124 (20°)
  Freezing point (°C) = -41.
35% (wt.), solvent - water
  Density (g/cm3) = 1.3373 (20°)
40% (wt.), solvent - water
  Density (g/cm3) = 1.3957 (20°)

Hygroscopic:

yes

Density:

2.512 (25°C, g/cm3)

Reactions:

  1. [Ref.1]
    CaCl2 + CaO + H2O → 2CaOHCl

Viscosity (mPa·s):

3.34 (787°C)
2.03 (877°C)
1.44 (967°C)

Surface tension (mN/m):

148 (770°C)
137 (920°C)

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

28.37

Enthalpy (heat) of vaporization ΔvapH (kJ/mol):

225

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

-795.4 (s) [Ref.]
-774.1 (l) [Ref.]
-471.5 (g) [Ref.]

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

-748.8 (s) [Ref.]

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

108.4 (s) [Ref.]
123.9 (l) [Ref.]
290.3 (g) [Ref.]

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

72.9 (s) [Ref.]
72.86 (l) [Ref.]

LD50 (mg/kg):

1384 (rabbits, oral)
4000 (rats, oral)
500 (rats, intraperitoneal)
600 (mice, intraperitoneal)

References:

  1. Comey A. M., Hahn D. A. A dictionary of Chemical Solubilities Inorganic. - 2 ed. - New York, The MacMillan Company, 1921. - pp. 144-150
  2. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 280-294
  3. Вредные химические вещества: Неорганические соединения элементов I-IV групп. Справочник. - Л.: Химия, 1988. - pp. 118 [Russian]
  4. Голодников Г.В., Мандельштам Т.В. Практикум по органическому синтезу. - Л.: ИЛУ, 1976. - pp. 19 [Russian]
  5. Некрасов Б.В. Основы общей химии. - Т.2. - М.: Химия, 1973. - pp. 172-174 [Russian]
  6. Позин М.Е. Технология минеральных солей (удобрений, пестицидов, промышленных солей, окислов и кислот). - Ч.1. - Л.: Химия, 1974. - pp. 738-750 [Russian]
  7. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 72 [Russian]
  8. Реми Г. Курс неорганической химии. - Т.1. - М., 1963. - pp. 302-304 [Russian]
  9. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 244-245, 781-783 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru