| Identification | Back Directory | [Name]
TITANIUM OXIDE | [CAS]
12065-65-5 | [Synonyms]
TIO2 ANATASE
TIO2 ANATASE B101
TITANIUM OXIDE BLACK
trititanium pentoxide
TITANIUM DIOXIDE RUTIL
TIO2-ENAMEL GRADE-5FCL
TITANIUM DI OXIDE B101
Titanium(III,IV) oxide
Trititanium pentaoxide
TITANIUM DIOXIDE PIGMENT
TITANIUM DIOXIDE ANATESE
TITANIUM DIOXIDE FOR PAIN
TITANIUM DIOXIDE USP23,BP98
TITANIUM DIOXIDE ANATASE 101
TITANIUM DIOXIDE FIBER GRADE
TITANIUM DIOXIDE RUTILE GRADE
Titamium monoxide target (TiO)
TITANIUM DIOXIDE(ENAMEL GRADE)
TITANIUM DIOXIDE RUTILE/ANATASE
TITANIUM DIOXID TIO2 FOOD GRADE
TITANIUM DI OXIDE ANATASE B 101
TITANIUM DIOXIDE POWDER, ANATASE
Titanium pentoxide target (Ti3O5)
TITANIUM DIOXIDE ANATASE FOR PAINT
Titanium oxide, 99.9% (metals basis)
TITANIUM DIOXIDE B 101 ANATASE GRADE
TITANIUM DIOXIDE B-101 GENERAL GRADE
TITANIUM DIOXIDE (RUTILE AND ANTASE)
TITANIUM DIOXIDE - ANATASE GRADE B101
TITANIUM DIOXIDE ANATASE(ENAMEL GRADE)
Calcium Fluoride (CaF2) Sputtering Targets
Titanium oxide, Pellets, &ap:8 to 9mm dia. x 7 to 9mm thick
TITANIUM (III,IV) OXIDE 99.99% (METALS BASIS) GRANULAR 3-5MM FOR OPTICAL COATINGS | [EINECS(EC#)]
601-730-8 | [Molecular Formula]
O5Ti3 | [MDL Number]
MFCD00210650 | [MOL File]
12065-65-5.mol | [Molecular Weight]
223.6 |
| Chemical Properties | Back Directory | [Melting point ]
1800°C | [density ]
4.20 | [solubility ]
Soluble in hot concentrated sulfuric acid, hydrofluoric acid and alkali. | [form ]
Pellet | [color ]
Black | [Specific Gravity]
4.2 | [Crystal Structure]
Dimorphic (120°C): Low temperature: anasovite type monoclinic; High temperature: pseudobrookite orthorhombic |
| Hazard Information | Back Directory | [Chemical Properties]
Ti3O5: (1) Rel.molar
mass (Mr
): 223.0070; (2) wt.% Ti: 64.1; (3) Color: Dark blue; (4) crystal lattice structure: dimorphic (120°C)
Low T: Anasovite-type I Monoclinic, C2/m, Z = 4
a = 975.2 pm; b = 380.2 pm; c = 944.2 pm; β = 91.55° High T: Pseudobrookite (orthorhombic); (5) ρcalc. = 4900 kg.m–3, m.p. = 1777°C | [Physical properties]
Dark blue crystals. Anasovite
Type II is similar to that identified in titania slags.
Can be stabilized at room
temperature with a small
amount of iron. | [Uses]
Nanocrystalline titanium oxide electrodes is useful for photo voltaic applications. It plays an important role as photocatalyst under visible light radiation. Treated titanium oxide nanotubes play a significant part in the development of nano-scale hydroxy apatite. It is too utilized as catalysts. | [Preparation]
Anosovite can be prepared in
the following ways:
(i) By the hydrogen reduction of solid TiO2
at temperature around 1300°C16 according to
the following reaction scheme:
3TiO2(s) + H2(g) —> T3O5(s) + H2O(g) (1300°C).
(ii) By mixing intimately stoichiometric quantities of titanium metal and titanium dioxide
in an electric-arc furnace under an argon atmosphere according to the following reaction scheme:
5TiO2(s) + Ti(s) —> 2Ti3O5(s) (1150°C)
followed by annealing in a vacuum of the crushed material for 2 weeks at 1150°C in
a sealed silica tube. This oxide is dimorphic with a rapid phase transition from semiconductor to metal occurring at roughly 120°C. α-Ti3O5—> β-Ti3O5
(120°C).
The low-temperature form (α-Ti3O5), also called anosovite type I, crystallizes with a monoclinic unit cell with the Ti-O bond distances ranging from 178 to 221 pm. The structure can
be described in terms of TiO6
8– octahedra joined by sharing the edge and corners to form an
infinite three-dimensional network. Anosovite I is obtained by the hydrogen reduction of
pure rutile at 1300°C. The high-temperature form (β-Ti3O5), also called anosovite type II, is
a slightly deformed pseudobrookite structure (AB2O5) with the Ti-O bond distances ranging
from 191 to 210 pm. The type II is obtained by hydrogen reduction at 1500°C with magnesia
as a catalyst. The anasovite type II is similar to that identified in titanium slags. It can be
stabilized at room temperature with a small amount of iron.
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