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Properties of substance:
titanium(IV) oxide yellow
Group of substances:
inorganic
Physical appearance:
yellow tetragonal crystals
Empirical formula (Hill's system for organic substances):
O
2
Ti
Structural formula as text:
TiO2
Molar/atomic mass: 79.9
Melting point (°C):
1892
Decomposition temperature (°C):
2900
Solubility (g/100 g of solvent):
boron oxide molten
: insoluble [
Ref.
]
lithium fluoride fused
: 0.1 (930°C) [
Ref.
]
lithium tetraborate fused
: 12 (940°C) [
Ref.
]
potassium tetraborate fused
: 30 (940°C) [
Ref.
]
water
: insoluble [
Ref.
]
Density:
4.2 (20°C, g/cm
3
)
Refractive index (n
D
):
2.61124 (25°C, n
o
)
2.8993 (25°C, n
е
)
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-943.9 (s)
Standard molar Gibbs energy of formation Δ
f
G
0
(298.15 K, kJ/mol):
-888.6 (s)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
50.33 (s)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
55.02 (s)
References:
Гринвуд Н., Эрншо А. Химия элементов. - Т.2. - М.: БИНОМ. Лаборатория знаний, 2008. - pp. 298-299 [Russian]
Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 105 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru