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Properties of substance:

potassium chloride


Physical appearance:

colorless cubic crystals

Empirical formula (Hill's system):

ClK

Structural formula:

KCl

CAS No: 7447-40-7

Molar/atomic mass: 74.55

Melting point (°C):

776

Boiling point (°C):

1500

Solubility (g/100 g of solvent):

1-butanol: 0.83 (20°C) [Ref.]
1-butanol: 0.86 (30°C) [Ref.]
1-butanol: 0.92 (40°C) [Ref.]
1-butanol: 0.94 (50°C) [Ref.]
1-pentanol: 0.0022 (25°C) [Ref.]
2-butanol: 0.00084 (25°C) [Ref.]
N-methylformamide: 2.1 (25°C) [Ref.]
amyl alcohol: 0.0008 (25°C) [Ref.]
liquid ammonia: 0.078 (-76.6°C) [Ref.]
liquid ammonia: 0.193 (-35.2°C) [Ref.]
liquid ammonia: 0.132 (0°C) [Ref.]
liquid ammonia: 0.04 (25°C) [Ref.]
acetone: 0.000086 (18°C) [Ref.]
acetone: 0.000091 (25°C) [Ref.]
acetonitrile: 0.0024 (18°C) [Ref.]
acetonitrile: 0.0024 (25°C) [Ref.]
water: 28 (0°C) [Ref.]
water: 31.2 (10°C) [Ref.]
water: 34.4 (20°C) [Ref.]
water: 36 (25°C) [Ref.]
water: 37.4 (30°C) [Ref.]
water: 40.3 (40°C) [Ref.]
water: 45.8 (60°C) [Ref.]
water: 51.1 (80°C) [Ref.]
water: 56 (100°C) [Ref.]
water: 68 (150°C) [Ref.]
water: 81.5 (200°C) [Ref.]
deuterium oxide: 21.17 (0°C) [Ref.]
deuterium oxide: 27.88 (20°C) [Ref.]
deuterium oxide: 33.56 (40°C) [Ref.]
deuterium oxide: 48.59 (100°C) [Ref.]
hydrazine: 9 (20°C) [Ref.]
hydroxylamine: 12.3 (18°C) [Ref.]
glycerol: 6.7 (25°C) [Ref.]
dimethylformamide: 0.05 (25°C) [Ref.]
sulfur dioxide: 0.041 (0°C) [Ref.]
i-butanol: 0.002 (25°C) [Ref.]
i-propanol: 0.0023 (25°C) [Ref.]
methanol: 0.53 (20°C) [Ref.]
methanol: 0.55 (25°C) [Ref.]
methanol: 0.56 (30°C) [Ref.]
methanol: 0.605 (40°C) [Ref.]
methanol: 0.639 (50°C) [Ref.]
methanol: 0.676 (60°C) [Ref.]
formic acid 95%: 19.4 (19.7°C) [Ref.]
selenium(IV) oxychloride: 2.98 (25°C) [Ref.]
phosphorus(V) trichloride oxide: 0.036 [Ref.]
hydrogen peroxide: 63.3 (0°C) [Ref.]
pyridine: sparingly soluble [Ref.]
propanol: 0.004 (25°C) [Ref.]
acetic acid: 0.195 (24°C) [Ref.]
acetic acid: 0.285 (55°C) [Ref.]
acetic acid: 0.457 (93°C) [Ref.]
formamide: 6.2 (25°C) [Ref.]
furfural : 0.073 (25°C) [Ref.]
iodine monochloride: 4.9 (20°C) [Ref.]
iodine monochloride: 8.05 (65°C) [Ref.]
hydrogen cyanide: sparingly soluble [Ref.]
ethanol abs.: 0.051 (20°C) [Ref.]
ethanol abs.: 0.048 (25°C) [Ref.]
ethanol abs.: 0.045 (30°C) [Ref.]
ethanol abs.: 0.044 (35°C) [Ref.]
ethanol abs.: 0.04 (40°C) [Ref.]
ethanol abs.: 0.037 (50°C) [Ref.]
ethanol abs.: 0.033 (60°C) [Ref.]
ethanediol: 5.18 (25°C) [Ref.]

Density:

1.99 (20°C, g/cm3)

Index of refraction:

1.49 (20°C)

Vapour pressure (Torr):

1 (819°C)
10 (965°C)
100 (1162°C)

    Dipole moment (D):

    6.3 (750°C)

    Viscosity (mPa·s):

    1.15 (787°C)
    0.92 (857°C)
    0.81 (927°C)

    Surface tension (mN/m):

    100.3 (780°C)
    95 (850°C)
    85.7 (970°C)

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

    25.5

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

    152

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

    -436,5 (s)
    -214,6 (g)

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

    -408,5 (s)
    -233,3 (g)

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

    82,6 (s)
    239,1 (g)

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

    51,3 (s)
    36,5 (g)

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

    26,28 (s)

    LD50 (mg/kg):

    770 (rats, intraperitoneal)
    820 (mice, intraperitoneal)

    References:

    1. Armarego W. L. F. Purification of Laboratory Chemicals. - 7ed. - 2013. - pp. 599
    2. Indian Journal of Chemistry. Section A. - 2005. - Vol. 44, No. 8. - pp. 1595
    3. Industrial and Engineering Chemistry Research. - 2010. - Vol. 49, No. 10. - pp. 4982
    4. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 747-782
    5. Алабышев А.Ф., Грачев К.Я., Зарецкий С.А., Лантратов М.Ф. Натрий и калий (получение, свойства и применение). - Л.: ГНТИХЛ, 1959. - pp. 279-281
    6. Беликов В.Г. Учебное пособие по фармацевтической химии. - М.: Медицина, 1979. - pp. 18
    7. Вредные химические вещества: Неорганические соединения элементов I-IV групп. Справочник. - Л.: Химия, 1988. - pp. 47
    8. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 70
    9. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 679-684, 738-739
    10. Справочник химика. - Т.3. - М.-Л.: Химия, 1965. - pp. 295
    11. Фурман А.А. Неорганические хлориды (химия и технология). - М.: Химия, 1980. - pp. 43-46
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      © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru