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Properties of substance:
formamidinesulfinic acid
skc-file
Group of substances:
inorganic
Physical appearance:
white crystals
Empirical formula (Hill's system for organic substances):
CH
4
N
2
O
2
S
Structural formula as text:
(H2N)2SO2
Molar/atomic mass: 108.12
Melting point (°C):
123
Solubility (g/100 g of solvent):
acetonitrile
: practically insoluble [
Ref.
]
dimethylformamide
: 0.1 (31°C) [
Ref.
]
dimethylformamide
: 0.11 (35°C) [
Ref.
]
dimethylformamide
: 0.12 (45°C) [
Ref.
]
dimethylsulfoxide
: 2.29 (31°C) [
Ref.
]
dimethylsulfoxide
: 2.37 (35°C) [
Ref.
]
dimethylsulfoxide
: 2.65 (45°C) [
Ref.
]
ethanol
: 0.75 (20°C) [
Ref.
]
formamide
: 2.18 (31°C) [
Ref.
]
formamide
: 2.25 (35°C) [
Ref.
]
formamide
: 2.65 (45°C) [
Ref.
]
nitromethane
: practically insoluble [
Ref.
]
propylene carbonate
: practically insoluble [
Ref.
]
tetrahydrofuran
: practically insoluble [
Ref.
]
water
: 3 (20°C) [
Ref.
]
water
: 4.25 (31°C) [
Ref.
]
water
: 4.86 (35°C) [
Ref.
]
Hygroscopic:
yes
Numerical data:
Year of discovery: 191
Dissociation:
pK
a
(1) = 6.82 (25°C, water)
References:
CRC Handbook of Chemistry and Physics. - 95ed. - CRC Press, 2014. - pp. 3-278
Буданов В.В., Макаров С.В. Химия серосодержащих восстановителей (ронгалит, дитионит, диоксид тиомочевины). - М.: Химия, 1994 [Russian]
Вредные вещества в промышленности: Справочник для химиков, инженеров и врачей. - 7-е изд., Т.2. - Л.: Химия, 1976. - pp. 58 [Russian]
Вредные вещества в промышленности: Справочник для химиков, инженеров и врачей. - 7-е изд., Т.2. - Л.: Химия, 1976. - pp. 58 [Russian]
Физер Л., Физер М. Реагенты для органического синтеза. - Т. 7. - М.: Мир, 1978. - pp. 499 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru