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Properties of substance:

thiourea



skc-file

Group of substances:

inorganic

Physical appearance:

rhombic crystals

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

CH4N2S

Structural formula as text:

NH2CSNH2

Molar/atomic mass: 76.11

Melting point (°C):

176

Decomposition temperature (°C):

200

CAS №: 62-56-6

Solubility (g/100 g of solvent):

1,1,2-trichloro-1,2,2-trifluoroethane: insoluble [Ref.]
ammonia liquid : 100 (-50°C) [Ref.]
benzene: insoluble [Ref.]
carbon tetrachloride: insoluble [Ref.]
diethyl ether: difficulty soluble [Ref.]
dimethylsulfoxide: 36 (25°C) [Ref.]
dimethylsulfoxide: 77 (95°C) [Ref.]
ethanol: 3.75 (20.25°C) [Ref.]
ethanol: 4 (25°C) [Ref.]
ethanol: 10.88 (64.77°C) [Ref.]
methanol: 13.57 (25.11°C) [Ref.]
methanol: 32.56 (62°C) [Ref.]
pyridine: 12.5 (20°C) [Ref.]
water: 4.9 (0.2°C) [Ref.]
water: 9.18 (13°C) [Ref.]
water: 15.2 (22.7°C) [Ref.]
water: 68 (60.2°C) [Ref.]
water: 200 (97°C) [Ref.]

Density:

1.405 (20°C, g/cm3)

Reactions:

  1. [Ref.1]
    (NH2)2CS + HgO → H2NCN + HgS + H2O

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

-89.1 (s)

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

22.9 (g)

LD50 (mg/kg):

8000 (mice, oral)

References:

  1. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-20
  2. Seidell A. Solubilities of organic compounds. - 3ed., vol.2. - New York: D. Van Nostrand Company, 1941. - pp. 41-43
  3. Yalkowsky S.H., Yan H. Handbook of aqueous solubility data. - CRC Press, 2003. - pp. 12
  4. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 519 [Russian]
  5. Справочник по растворимости. - Т.1, Кн.2. - М.-Л.: ИАН СССР, 1962. - pp. 1132, 1153 [Russian]
  6. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 974-975 [Russian]
  7. Хёрд Ч.Д. Пиролиз соединений углерода. - Л.-М.: ГОНТИ РКТП СССР, 1938. - pp. 606-607 [Russian]
  8. Химическая энциклопедия. - Т. 4. - М.: Советская энциклопедия, 1995. - pp. 574-575 [Russian]
  9. Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советская энциклопедия, 1983. - pp. 578 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru