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Properties of substance:

triethanolamine

Synonyms:

tris(2-hydroxyethyl)amine

Group of substances:

organic

Physical appearance:

colorless viscous liquid

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

C6H15NO3

Structural formula as text:

(HOCH2CH2)3N

Molar/atomic mass: 149.19

Melting point (°C):

21.2

Boiling point (°C):

360

CAS №: 102-71-6

Solubility (g/100 g of solvent):

benzene: 2 [Ref.]
chloroform: soluble [Ref.]
diethyl ether: 1.6 [Ref.]
ethanol: miscible [Ref.]
heptane: 0.2 (25°C) [Ref.]
ligroin: sparingly soluble [Ref.]
methanol: miscible [Ref.]
water: miscible [Ref.]

Hygroscopic:

yes

Density:

1.1258 (20°C, d20)

Refractive index (nD):

1.4852 (20°C)

Vapour pressure (Torr):

0.049 (30°C)
0.17 (50°C)
0.71 (75°C)
2.34 (100°C)
15 (206°C)
150 (278°C)

Dissociation:

pKBH+ (1) = 7.76 (25°C, water)

Viscosity (mPa·s):

601 (25°C)
795 (20°C)
10.5 (100°C)

Surface tension (mN/m):

10.5 (100°C)

Flash point (°C):

179.44

LD50 (mg/kg):

5160 (rabbits, oral)
8400 (rats, oral)
5300 (guinea pig, oral)
7750 (mice, oral)

References:

  1. Dictionary of organic compounds. - Vol. 3, naphthacarbazole - zygadenine. - М.: ИИЛ, 1949. - pp. 843
  2. Stahl P.H., Wermuth C.G. Handbook of Pharmaceutical Salts: Properties, Selection, and Use. - Wiley-VCH, 2002. - pp. 323-324
  3. Вредные вещества в промышленности: Справочник для химиков, инженеров и врачей. - 7-е изд., Т.2. - Л.: Химия, 1976. - pp. 244-245 [Russian]
  4. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - 2-е изд. - Л.: Химия, 1978. - pp. 187 [Russian]
  5. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 185 [Russian]
  6. Токсикологический вестник. - 2008. - №2. - pp. 42 [Russian]
  7. Химическая энциклопедия. - Т. 5. - М.: Советская энциклопедия, 1999. - pp. 491-492 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru