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Properties of substance:

chloral hydrate

Group of substances:

organic

Physical appearance:

colorless monoclinic crystals

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

C2H3Cl3O2

Structural formula as text:

CCl3CH(OH)2

Molar/atomic mass: 165.41

Melting point (°C):

51.7

Boiling point (°C):

97.5

Decomposition temperature (°C):

98

Solubility (g/100 g of solvent):

acetone: very soluble [Ref.]
benzene: sparingly soluble [Ref.]
carbon disulphide: 1.47 (20°C) [Ref.]
chloroform: 3.8 (0°C) [Ref.]
chloroform: 5.2 (10°C) [Ref.]
chloroform: 15.5 (20°C) [Ref.]
chloroform: 65 (27.7°C) [Ref.]
diethyl ether: 200 (25°C) [Ref.]
ethanol: 188 (0°C) [Ref.]
ethanol: 200 (5°C) [Ref.]
ethanol: 425 (20°C) [Ref.]
ethanol: 950 (30°C) [Ref.]
ethanol: 5600 (45°C) [Ref.]
glycerol: 200 (20°C) [Ref.]
pyridine: 80.9 (20°C) [Ref.]
quinoline: 12.56 (20°C) [Ref.]
toluene: 3.25 (0°C) [Ref.]
toluene: 8 (10°C) [Ref.]
toluene: 21 (20°C) [Ref.]
toluene: 77 (35°C) [Ref.]
toluene: 200 (45°C) [Ref.]
water: 239 (0°C) [Ref.]
water: 292 (5°C) [Ref.]
water: 470 (17°C) [Ref.]
water: 1005 (30°C) [Ref.]
water: 1430 (40°C) [Ref.]

Density:

1.9081 (20°C, g/cm3)
1.619 (50°C, g/cm3)
1.575 (66°C, d4)

Vapour pressure (Torr):

764 (96.3°C)

Dissociation:

pKa (1) = 11.3 (18°C, water)

Dipole moment (D):

2.07 (20°C)

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

22.96

LD50 (mg/kg):

479 (rats, oral)
1100 (mice, oral)
530 (mice, intravenous)

References:

  1. CRC Handbook of Chemistry and Physics. - 95ed. - CRC Press, 2014. - pp. 3-96
  2. Kleemann A. Pharmaceutical Substances. - 2000. - pp. 423
  3. Seidell A. Solubilities of organic compounds. - 3ed., vol.2. - New York: D. Van Nostrand Company, 1941. - pp. 92-93
  4. Беликов В.Г. Учебное пособие по фармацевтической химии. - М.: Медицина, 1979. - pp. 107 [Russian]
  5. Промышленные хлорорганические продукты: Справочник. - М.: Химия, 1978. - pp. 166-167 [Russian]
  6. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 192 [Russian]
  7. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 379 [Russian]
  8. Справочник по растворимости. - Т.1, Кн.2. - М.-Л.: ИАН СССР, 1962. - pp. 1175-1176 [Russian]
  9. Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советская энциклопедия, 1983. - pp. 657 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru