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Properties of substance:

2-aminoethanesulfonic acid

Synonyms:

taurine

Group of substances:

organic

Physical appearance:

needles crystals

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

C2H7NO3S

Structural formula as text:

H2NCH2CH2SO3H

Molar/atomic mass: 125.2

Melting point (°C):

320

Decomposition temperature (°C):

320

Solubility (g/100 g of solvent):

diethyl ether: insoluble [Ref.]
ethanol: 0.0032 (17°C) [Ref.]
water: 3.93 (0°C) [Ref.]
water: 5.45 (12°C) [Ref.]
water: 10.48 (25°C) [Ref.]
water: 21.88 (50°C) [Ref.]
water: 45.76 (100°C) [Ref.]

Dissociation:

pKa (1) = 9.06 (25°C, water)

References:

  1. Seidell A. Solubilities of organic compounds. - 3ed., vol.2. - New York: D. Van Nostrand Company, 1941. - pp. 162
  2. Yalkowsky S.H., Yan H., Jain P. Handbook of aqueous solubility data. – 2nd ed. - CRC Press, 2010. - pp. 41
  3. Губен И. Методы органической химии. - Т. 4, Вып. 2. - М.-Л.: ГНТИХЛ, 1949. - pp. 911 [Russian]
  4. Досон Р., Эллиот Д., Эллиот У., Джонс К. Справочник биохимика. - М.: Мир, 1991. - pp. 32, 389 [Russian]
  5. Краткая химическая энциклопедия. - Т. 5: Т-Я. - М.: Советская энциклопедия, 1967. - pp. 32 [Russian]
  6. Новый справочник химика и технолога. Химическое равновесие. Свойства растворов. - СПб.: НПО Профессионал, 2004, 2007. - pp. 429 [Russian]
  7. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 386 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru