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Properties of substance:
benzaldehyde
skc-file
Group of substances:
organic
Physical appearance:
colorless liquid
Empirical formula (Hill's system for organic substances):
C
7
H
6
O
Structural formula as text:
C6H5CHO
Molar/atomic mass: 106.13
Melting point (°C):
-26
Boiling point (°C):
179
Solubility (g/100 g of solvent):
acetone
: very soluble [
Ref.
]
ammonia liquid
: 455 [
Ref.
]
benzene
: very soluble [
Ref.
]
diethyl ether
: miscible [
Ref.
]
ethanol
: miscible [
Ref.
]
hydrogen fluoride
: very soluble [
Ref.
]
ligroin: very soluble [
Ref.
]
propylene glycol
: miscible [
Ref.
]
sulfolane
: miscible [
Ref.
]
water
: 0.345 (20°C) [
Ref.
]
water
: 0.9509 (60°C) [
Ref.
]
Density:
1.0498 (20°C, g/cm
3
)
Reactions:
Yeild 54%. [
Ref.1
]
C
5
H
4
NCOOH + C
6
H
5
CHO → C
5
H
4
NCH(OH)C
6
H
5
+ CO
2
Yeild 55-60%. [
Ref.1
]
C
6
H
5
CHO + (CH
3
CO)
2
O → C
6
H
5
CH=CHCOOH + CH
3
COOH
Yeild 89%. [
Ref.1
]
C
6
H
5
CHO + NH
3
+ H
2
→ C
6
H
5
CH
2
NH
2
+ H
2
O
Yeild 67%. [
Ref.1
]
C
6
H
5
CHO + (C
6
H
5
)
3
P=CH
2
→ C
6
H
5
CH=CH
2
+ (C
6
H
5
)
3
PO
Dissociation:
pK
BH
+
(1) = -7.1 (25°C, water)
pK
a
(1) = 14.9 (25°C, water)
Retention indices for gas chromatography:
936,6 (phase - 100% dimethylsilicone)
962,7 (phase - dimethylsilicone with 5% phenyl groups)
Heat of combustion (kJ/mol):
3520
LD
50
(mg/kg):
1300 (rats, oral)
References:
Dictionary of organic compounds. - Vol.1, Abadole-Cytosine. - New York, 1953. - pp. 237
Lewis R.J. Sax's Dangerous Properties of Industrial Materials. - 11ed. - Wiley-interscience, 2004. - pp. 353
Seidell A. Solubilities of organic compounds. - 3ed., vol.2. - New York: D. Van Nostrand Company, 1941. - pp. 497
Yalkowsky S.H., Yan H. Handbook of aqueous solubility data. - CRC Press, 2003. - pp. 368-369
Гурвич Я.А. Справочник молодого аппаратчика-химика. - М.: Химия, 1991. - pp. 229 [Russian]
Реутов О.А., Курц А.Л., Бутин К.П. Органическая химия. - 2-е изд., Ч.1. - М.: Бином. Лаборатория знаний, 2005. - pp. 223 [Russian]
Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 470-471 [Russian]
Химическая энциклопедия. - Т. 1. - М.: Советская энциклопедия, 1988. - pp. 256 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru