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Properties of substance:
p-xylene
Group of substances:
organic
Physical appearance:
colorless liquid
Empirical formula (Hill's system for organic substances):
C
8
H
1
0
Structural formula as text:
C6H4(CH3)2
Molar/atomic mass: 106.17
Melting point (°C):
13.26
Boiling point (°C):
138.35
Solubility (g/100 g of solvent):
water
: 0.01911 (20°C) [
Ref.
]
water
: 0.05152 (99.99°C) [
Ref.
]
Density:
0.8611 (20°C, d
4
)
Refractive index (n
D
):
1.49582 (20°C)
Retention indices for gas chromatography:
866,5 (phase - DB-5, temperature-programmed conditions, 6 K/min)
Viscosity (mPa·s):
0.644 (20°C)
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-24.443 (l)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
247.524 (l)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
183.968 (l)
Enthalpy (heat) of vaporization Δ
vap
H (kJ/mol):
42.4
LD
50
(mg/kg):
3910 (rats, oral)
Critical temperature (°C):
345
Critical pressure (MPa):
3.44
Critical density (g/cm
3
):
0.29
References:
Yalkowsky S.H., Yan H. Handbook of aqueous solubility data. - CRC Press, 2003. - pp. 491-492
Вредные химические вещества: Углеводороды, галогенпроизводные углеводородов. Справочник. - Л.: Химия, 1990. - pp. 160 [Russian]
Промышленные хлорорганические продукты: Справочник. - М.: Химия, 1978. - pp. 627-628 [Russian]
Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 155 [Russian]
Химическая энциклопедия. - Т. 2. - М.: Советская энциклопедия, 1990. - pp. 550 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru