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CAS No.:12333-11-8
MF:H43N6O41W12
EINECS No.:234-733-4
Brand Name:Unilong
Appearance:white crystalline powder
Other Names: AMMONIUM (META)TUNGSTATE HYDRATE; AMMONIUM METATUNGSTATE HYDRATE, >=66.5% W; AMMONIUM METATUNGSTATE HYDRATE, 99.99%;AMMoniuM Metatungstate hydrate >=85% WO3 basis (graviMetric); Ammonium metatungstate hydrate 99.99%
what is of AMMONIUM (META)TUNGSTATE HYDRATE with CAS 12333-11-8?
It is used as a reagent for chemical analysis like medical diagnosis. It is used as a precursor material for the preparation of high-purity WO3 which is used as thin-film substrate for certain semiconductor devices. It acts as a precursor to a variety of POM (polyoxometalates).
Specification
|
Test Item
|
Test Results
|
||
|
WO3
|
90.11%
|
Mo
|
＜0.0018%
|
|
Al
|
0.0004%
|
Na
|
0.0005%
|
|
As
|
0.0004%
|
Ni
|
＜0.0005%
|
|
Bi
|
＜0.0001%
|
P
|
0.0005%
|
|
Ca
|
0.0005%
|
Pb
|
＜0.0001%
|
|
Co
|
＜0.0005%
|
S
|
0.0009%
|
|
Cr
|
＜0.0005%
|
Sb
|
＜0.0005%
|
|
Cu
|
＜0.0003%
|
Si
|
＜0.0008%
|
|
Fe
|
0.0008%
|
Ti
|
＜0.0005%
|
|
K
|
＜0.0005%
|
V
|
＜0.0005%
|
|
Mn
|
＜0.0005%
|
pH
|
2.52
|
|
Mg
|
＜0.0005%
|
Water Insoluble Matter
|
0.03%
|
Application
It can be used as a preservative in food and can supplement zinc needed by human body. The dosage can refer to sodium benzoate, and its effect is better than that of sodium benzoateAmmonium tungsten oxide hydrate is widely utilized as a raw material for the synthesis of tungsten catalysts, which is used in a variety of reactions like oxidation, hydroxylation, hydrogenation and polymerization.
Package
25kgs/drum,9tons/20’container
25kgs/bag,20tons/20’container
