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Properties of substance:

morpholine

Group of substances:

organic

Physical appearance:

colorless oily liquid

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

C4H9NO

Structural formula as text:

O(CH2CH2)2NH

Molar/atomic mass: 87.1204

Boiling point (°C):

129

CAS №: 110-91-8

Solubility (g/100 g of solvent):

diethyl ether: soluble [Ref.]
ethanol: soluble [Ref.]
sulfolane: miscible [Ref.]
water: miscible [Ref.]

Hygroscopic:

yes

Density:

0.9998 (20°C, g/cm3)

Dissociation:

pKBH+ (1) = 8.7 (25°C, water)

Retention indices for gas chromatography:

794 (phase - OV-101, 110°C)

Molar heat capacity at constant pressure Cp (298.15 K, J/(mol·K)):

164.8 (l)

LD50 (mg/kg):

1600-1700 (white rats, oral)

References:

  1. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-27
  2. Гайле А.А., Сомов В.Е., Залищевский Г.Д. Морфолин и его производные. - СПб.: Химиздат, 2007 [Russian]
  3. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 800-801 [Russian]
  4. Справочник химика. - Т. 3. - М.-Л.: Химия, 1965. - pp. 102 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru