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Properties of substance:
triflic acid
Synonyms:
trifluoromethanesulfonic acid
Group of substances:
organic
Physical appearance:
liquid
Empirical formula (Hill's system for organic substances):
CHF
3
O
3
S
Structural formula as text:
CF3SO3H
Molar/atomic mass: 150.07
Melting point (°C):
34
Boiling point (°C):
162
Decomposition temperature (°C):
650
Solubility (g/100 g of solvent):
acetonitrile
: soluble [
Ref.
]
dimethylformamide
: soluble [
Ref.
]
dimethylsulfoxide
: soluble [
Ref.
]
sulfolane
: soluble [
Ref.
]
water
: very soluble [
Ref.
]
Numerical data:
Year of discovery: 1954
Density:
1.696 (25°C, g/cm
3
)
Refractive index (n
D
):
1.325 (25°C)
Vapour pressure (Torr):
8 (54°C)
Dissociation:
H
0
(1) = -14.1 (25°C)
pK
a
(1) = 4.7 (25°C, acetic acid)
pK
a
(1) = 2.4 (25°C, chloroacetic acid)
References:
Advances in Inorganic Chemistry and Radiochemistry. - 1960. - Vol. 2. - pp. 140
Chemical Reviews. - 1977. - Vol. 77, No. 1. - pp. 69-76
Dean J.A. Lange's handbook of chemistry. - 1999. - pp. 1.331
Gmelin Handbook of Inorganic Chemistry. - 8th ed., System Number 5, Supplement Volume 3. - Springer-Verlag Berlin Heidelberg GmbH, 1987. - pp. 88-95
Janiak C., Klapotke T.M., Meyer H.-J. Moderne Anorganische Chemie. - Berlin: Walter de Gruyter, 2003. - pp. 102
Olah G.A., Klumpp D.A. Superelectrophiles and their chemistry. - Wiley, 2008. - pp. 82
Olah G.A., Prakash G.K.S., Molnar A., Sommer J. Superacid chemistry. - 2ed. - Wiley, 2009. - pp. 38-39
Гордон А., Форд Р. Спутник химика. - М.: Мир, 1976. - pp. 30 [Russian]
Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советская энциклопедия, 1983. - pp. 596 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru