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Properties of substance:

octanedioic acid

Synonyms:

suberic acid

Group of substances:

organic

Physical appearance:

colorless needles crystals

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

C8H14O4

Structural formula as text:

HOOC(CH2)6COOH

Molar/atomic mass: 174.194

Melting point (°C):

140

Decomposition temperature (°C):

345

Solubility (g/100 g of solvent):

1-propanol: 13.9 (4°C) [Ref.]
diethyl ether: difficulty soluble [Ref.]
ethanol: 18.44 (4°C) [Ref.]
formic acid 95%: 2.13 (19.5°C) [Ref.]
methanol: 32.04 (4°C) [Ref.]
water: 0.08 (0°C) [Ref.]
water: 0.14 (16°C) [Ref.]
water: 0.16 (20°C) [Ref.]
water: 0.45 (35°C) [Ref.]
water: 0.98 (50°C) [Ref.]
water: 1.425 (70.09°C) [Ref.]

Dissociation:

pKa (1) = 4.52 (25°C, water)
pKa (2) = 5.33 (25°C, water)

References:

  1. Seidell A. Solubilities of organic compounds. - 3ed., vol.2. - New York: D. Van Nostrand Company, 1941. - pp. 618
  2. Yalkowsky S.H., Yan H. Handbook of aqueous solubility data. - CRC Press, 2003. - pp. 518
  3. Краткая химическая энциклопедия. - Т. 4: Пирометаллургия-С. - М.: Советская энциклопедия, 1965. - pp. 340 [Russian]
  4. Мономеры для поликонденсации. - М.: Мир, 1976. - pp. 57-61 [Russian]
  5. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 504 [Russian]
  6. Справочник по растворимости. - Т.1, Кн.2. - М.-Л.: ИАН СССР, 1962. - pp. 1144 [Russian]
  7. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 898-899 [Russian]
  8. Фрейдлин Г.Н. Алифатические дикарбоновые кислоты. - М., 1978 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru