Molybdenum(IV) oxide suppliers

Molybdenum(IV) oxide

CAS:: 18868-43-4

MF:: MoO2

MW:: 127.94

a/nm	b/nm	c/nm	α/o	β/o	γ/o	V/nm3
0.55388	0.48562	0.56285	90	119.683	90	0.1315

SecurityInformation

Symbol(GHS) ：: GHS07

Signal word ：: Warning

Hazard statements ：: H315-H319

Precautionary statements ：: P264-P280-P302+P352-P337+P313-P305+P351+P338-P362+P364-P332+P313

Hazard Codes ：: Xn

Risk Statements ：: 20/21/22-36/37/38

Safety Statements ：: 26-36

WGK Germany ：: 1

RTECS ：: QA4688000

TSCA ：: Yes

HS Code ：: 28257000

Toxicity：: mouse,LD50,subcutaneous,318mg/kg (318mg/kg),Zhurnal Vsesoyuznogo Khimicheskogo Obshchestva im. D.I. Mendeleeva. Journal of the D.I. Mendeleeva All-Union Chemical Society. Vol. 19, Pg. 186, 1974.

Use：: Molybdenum(IV) oxide can be prepared by several methods including controlled oxidation of Mo and controlled reduction of MoO3 with hydrogen. The pure oxide suitable for structure determination has been prepared by electrolysis of a polymolybdate (K2O5.MoO3) solution. Molybdenum(IV) oxide is insoluble in water: it is inert in solutions of nonoxidizing acids or bases, but is dissolved by oxidizing solutions. It dissociates to Mo and MoO3 at high temperatures (~ 1100).Crystalline MoO2 is violet or brown. Its deformed rutile structure consists of infinite chains of MoO6 octahedra sharing opposite edges along the chain direction with Mo-Mo distances alternately long (3.10 A) and short (2.50 A). It is diamagnetic and semiconducting ; metal-metal bonds are present. Some of its thermodynamic properties are as follows: Gf29% ~ 172.415 kcal/mole Hf29% -140.5 kcal/mole S298 11.954 gibbs/mole.

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Hebei Weibang Biotechnology Co., Ltd