Taizhou Anda Nonferrous Metals Co., Ltd.--Tungsten trioxide

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Anda Nonferrous Metals

Tungsten trioxide

Chemical formula: WO₃

Properties: light yellow powder, insoluble in water and acid (except for HF), can slowly dissolved in concentrated alkali solution.

Specifications:

Grade		FWO₃-1	FWO₃-2	FWO₃-3
WO3 (%)≥		99.95	99.9	99.5
Impurity content (as WO) not more than %	Pb	0.0005	0.001	/
	Bi	0.0005	0.001	/
	Sn	0.0007	0.001	/
	Sb	0.001	0.001	/
	As	0.002	0.002	0.010
	Fe	0.001	0.005	0.010
	Al	0.001	0.001	0.002
	Si	0.002	0.003	0.008
	Ni	0.0007	0.002
	Ca	0.002	0.003	(Ca+Mg) 0.015
	Mg	0.001	0.004	(Mg+Ca) 0.015
	K	0.002	0.002	(K+Na) 0.015
	Na	0.002	0.004	(Na+K) 0.015
	Cu	0.0007	0.001	/
	Mn	0.001	0.002	/
	Mo	0.005	0.03	0.10
	P	0.0007	0.004	0.015
	S	0.001	0.001	0.007
Chlorination residue		/	/	0.07
Loss on ignition (%)		0.5	0.5	0.5
Sieving size (mesh)		-40 100%	-40 100%	-40 100%
Bulk density g/cm3		0.5-2.5

Uses: Used in the manufacture of metal tungsten powder, tungsten carbide powder, tungsten carbide and other tungsten products.
Packing: 25kg Cardboard barrel or plastic woven bag .
Not: special specifications are negotiable.

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