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Properties of substance:

triphenylphosphine oxide

Synonyms:

TPPO
triphenylphosphinoxide

Group of substances:

elementorganic

Physical appearance:

colorless crystals

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

C18H15OP

Structural formula as text:

(C6H5)3PO

Molar/atomic mass: 278.29

Melting point (°C):

153

Boiling point (°C):

360

CAS №: 791-28-6

Solubility (g/100 g of solvent):

benzene: very soluble [Ref.]
chloroform: sparingly soluble [Ref.]
diethyl ether: difficulty soluble [Ref.]
ethanol: very soluble [Ref.]
ligroin: difficulty soluble [Ref.]
water: 0.00628 (20°C) [Ref.]

Density:

1.2124 (22.6°C, g/cm3)

References:

  1. CRC Handbook of Chemistry and Physics. - 95ed. - CRC Press, 2014. - pp. 3-540
  2. Кирби А., Уоррен С. Органическая химия фосфора. - М.: Мир, 1971. - pp. 297 [Russian]
  3. Розанцев Э.Г., Шолле В.Д. Органическая химия свободных радикалов. - М.: Химия, 1979. - pp. 323 [Russian]
  4. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 1060-1061 [Russian]
  5. Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советская энциклопедия, 1983. - pp. 595 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru