TITANIUM OXIDE

TITANIUM OXIDE 속성

TITANIUM OXIDE C화학적 특성, 용도, 생산

화학적 성질

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

물리적 성질

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.

용도

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.

제조 방법

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.

TITANIUM OXIDE 준비 용품 및 원자재

원자재

준비 용품

TITANIUM OXIDE 공급 업체

공급자	전화	이메일	국가	제품 수	이점
Hebei Mojin Biotechnology Co., Ltd	+8613288715578	sales@hbmojin.com	China	12456	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21691	55
Hubei Jusheng Technology Co.,Ltd.	18871490254	linda@hubeijusheng.com	CHINA	28180	58
Hebei Guanlang Biotechnology Co., Ltd.	+86-19930503282	alice@crovellbio.com	China	8823	58
career henan chemical co	+86-0371-86658258 15093356674;	factory@coreychem.com	China	29826	58
Zhengzhou Alfa Chemical Co.,Ltd	+8618530059196	sale04@alfachem.cn	China	12468	58
Hefei TNJ Chemical Industry Co.,Ltd.	0551-65418671	sales@tnjchem.com	China	34572	58
Xi'an MC Biotech, Co., Ltd.	029-89275612 +8618991951683	mcbio_sales@163.com	China	2255	58
Dayang Chem (Hangzhou) Co.,Ltd.	571-88938639 +8617705817739	info@dycnchem.com	CHINA	52867	58
Alfa Chemistry	+1-5166625404	Info@alfa-chemistry.com	United States	21317	58

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