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Properties of substance:

arsenazo III



skc-file

Group of substances:

organic

Physical appearance:

amorphous substance

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

C22H18As2N4O14S2

Molar/atomic mass: 776.37

Solubility (g/100 g of solvent):

acetone: insoluble [Ref.]
diethyl ether: insoluble [Ref.]
ethanol: insoluble [Ref.]
water: soluble [Ref.]

Dissociation:

pKa (2) = 1.2 (25°C, water)
pKa (3) = 2.7 (25°C, water)
pKa (4) = 7.9 (25°C, water)
pKa (5) = 10.5 (25°C, water)
pKa (6) = 12 (25°C, water)

References:

  1. Dean J.A. Lange's handbook of chemistry. - 1999. - pp. 8.30
  2. Бургер К. Органические реагенты в неорганическом анализе. - М.: Мир, 1975. - pp. 159-161 [Russian]
  3. Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советская энциклопедия, 1983. - pp. 56 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru