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Properties of substance:

guanidine



skc-file

Group of substances:

organic

Physical appearance:

colorless crystals

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

CH5N3

Structural formula as text:

H2NC(NH)NH2

Molar/atomic mass: 59.07

Melting point (°C):

50

Solubility (g/100 g of solvent):

ethanol: very soluble [Ref.]
water: very soluble [Ref.]

Dissociation:

pKBH+ (1) = 13.6 (25°C, water)

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

-56 (s)

References:

  1. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-20
  2. CRC Handbook of Chemistry and Physics. - 95ed. - CRC Press, 2014. - pp. 3-286
  3. Superbases for Organic Synthesis: Guanidines, Amidines, Phosphazenes and Related Organocatalysts. - editor Ishikawa T. - Wiley, 2009. - pp. 2
  4. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 525 [Russian]
  5. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 634-635 [Russian]
  6. Химическая энциклопедия. - Т. 1. - М.: Советская энциклопедия, 1988. - pp. 617 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru