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Properties of substance:
1,3,5-trimethylbenzene
Group of substances:
organic
Physical appearance:
liquid
Empirical formula (Hill's system for organic substances):
C
9
H
1
2
Structural formula as text:
C6H3(CH3)3
Molar/atomic mass: 120.192
Melting point (°C):
-44.72
Boiling point (°C):
164.7
CAS №: 108-67-8
Solubility (g/100 g of solvent):
acetone
: soluble [
Ref.
]
benzene
: soluble [
Ref.
]
chloroform
: soluble [
Ref.
]
diethyl ether
: soluble [
Ref.
]
ethanol
: soluble [
Ref.
]
water
: 0.00482 (25°C) [
Ref.
]
water
: 0.01943 (99.99°C) [
Ref.
]
Density:
0.86518 (20°C, d
4
)
Reactions:
Yeild 50%. [
Ref.1
]
(CH
3
)
3
C
6
H
3
+ HNO
3
→ (CH
3
)
3
C
6
H
2
NO
2
+ H
2
O
Yeild 100%. [
Ref.1
]
(CH
3
)
3
C
6
H
3
+ C
6
H
5
COONO
2
→ (CH
3
)
3
C
6
H
2
NO
2
+ C
6
H
5
COOH
Refractive index (n
D
):
1.4491 (20°C)
Vapour pressure (Torr):
1 (12.3°C)
10 (48.8°C)
40 (77.2°C)
100 (99.7°C)
400 (141.4°C)
Retention indices for gas chromatography:
967,1 (phase - DB-5, temperature-programmed conditions, 6 K/min)
Viscosity (mPa·s):
1.154 (20°C)
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-16.08 (g)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
385.81 (g)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
150.35 (g)
Molar enthalpy (heat) of fusion Δ
fus
H (kJ/mol):
9.63
Enthalpy (heat) of vaporization Δ
vap
H (kJ/mol):
39.15
LD
50
(mg/kg):
7000 (mice, oral)
Critical temperature (°C):
370.5
Critical pressure (MPa):
3.27
References:
Dean J.A. Lange's handbook of chemistry. - 1999. - pp. 5.103, 5.153
Yalkowsky S.H., Yan H. Handbook of aqueous solubility data. - CRC Press, 2003. - pp. 586
Вредные химические вещества: Углеводороды, галогенпроизводные углеводородов. Справочник. - Л.: Химия, 1990. - pp. 175 [Russian]
Соколов В.З., Харлампович Г.Д. Производство и использование ароматических углеводородов. - М.: Химия, 1980. - pp. 14 [Russian]
Справочник нефтехимика. - Т.1, под ред. Огородникова С.К. - Л.: Химия, 1978. - pp. 478-479 [Russian]
Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 774-775 [Russian]
Химическая энциклопедия. - Т. 3. - М.: Советская энциклопедия, 1992. - pp. 17-18 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru