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Properties of substance:

dimethylglyoxime

Group of substances:

organic

Physical appearance:

colorless crystals

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

C4H8N2O2

Structural formula as text:

CH3C(=NOH)C(=NOH)CH3

Molar/atomic mass: 116.12

Melting point (°C):

238

Decomposition temperature (°C):

238

Solubility (g/100 g of solvent):

acetone: soluble [Ref.]
diethyl ether: soluble [Ref.]
ethanol: 1.3 (20°C) [Ref.]
water: 0.06 (20°C) [Ref.]
water: 0.36 (80°C) [Ref.]
water: 0.59 (100°C) [Ref.]

Dissociation:

pKa (1) = 11.1 (18°C, water)

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

-199.7 (s) [Ref.]

References:

  1. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-26
  2. Yalkowsky S.H., Yan H., Jain P. Handbook of aqueous solubility data. – 2nd ed. - CRC Press, 2010. - pp. 110
  3. Бургер К. Органические реагенты в неорганическом анализе. - М.: Мир, 1975. - pp. 99-105 [Russian]
  4. Некрасов Б.В. Основы общей химии. - Т.2. - М.: Химия, 1973. - pp. 365 [Russian]
  5. Пешкова В.М., Савостина В.М. Аналитическая химия никеля. - М.: Наука, 1966. - pp. 19-22 [Russian]
  6. Пешкова В.М., Савостина В.М., Иванова Е.К. Оксимы. - М.: Наука, 1977. - pp. 16, 33, 35, 39 [Russian]
  7. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 624-625 [Russian]
  8. Справочник химика. - Т. 3. - М.-Л.: Химия, 1965. - pp. 87 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru