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Properties of substance:
glyoxal
Group of substances:
organic
Physical appearance:
green liquid
Empirical formula (Hill's system for organic substances):
C
2
H
2
O
2
Structural formula as text:
(CHO)2
Molar/atomic mass: 58.04
Melting point (°C):
15
Boiling point (°C):
50.4
Solubility (g/100 g of solvent):
diethyl ether
: soluble [
Ref.
]
ethanol
: soluble [
Ref.
]
water
: very soluble [
Ref.
]
Density:
1.14 (20°C, g/cm
3
)
Reactions:
[
Ref.1
]
(CHO)
2
+ 2NH
2
OH → (CH=NOH)
2
+ 2H
2
O
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-212 (g)
Standard molar Gibbs energy of formation Δ
f
G
0
(298.15 K, kJ/mol):
-189.7 (g)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
272.5 (g)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
60.6 (g)
LD
50
(mg/kg):
200-400 (white rats, oral)
References:
CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-21
Водянкина О.В., Курина Л.Н., Петров Л.А., Князев А.С. Глиоксаль. - М.: Academia, 2007 [Russian]
Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 624-625 [Russian]
Химическая энциклопедия. - Т. 1. - М.: Советская энциклопедия, 1988. - pp. 583 [Russian]
Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советская энциклопедия, 1983. - pp. 137 [Russian]
Шабаров Ю.С. Органическая химия. - Ч.1. - М.: Химия, 1994. - pp. 113 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru
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