Ammonium Metatungstate Introduction
- Details
- Category: Tungsten Information
- Published on Thursday, 18 June 2015 16:34
Ammonium metatungstate, also known as AMT, is a tungsten chemical in the form of highly soluble hydrated crystals, solubility is 303.99/loogH:O when 20℃, aqueous fairly stable. It is white or slightly yellow crystals which has no harmful components and slightly acidic.
Component of ammonium metatungstate is listed as below:
|
Grade |
AMT-1A |
AMT-2A |
|
|
AMT-1B |
AMT-2B |
||
|
AMT-1C |
AMT-2C |
||
|
Purity Min.(%) |
99.95 |
99.9 |
|
|
Main content WO3 MIN.(%) |
83 |
83 |
|
|
Other |
Al |
0.001 |
0.001 |
|
As |
0.001 |
0.001 |
|
|
Bi |
0.0001 |
0.0001 |
|
|
Ca |
0.001 |
0.003 |
|
|
Cr |
0.001 |
0.001 |
|
|
Cu |
0.001 |
0.003 |
|
|
Fe |
0.002 |
0.003 |
|
|
K |
0.0015 |
0.002 |
|
|
Mg |
0.001 |
0.002 |
|
|
Mn |
0.001 |
0.001 |
|
|
Mo |
0.005 |
0.01 |
|
|
Na |
0.0015 |
0.002 |
|
|
Ni |
0.001 |
0.001 |
|
|
P |
0.001 |
0.003 |
|
|
Pb |
0.0001 |
0.0001 |
|
|
S |
0.0005 |
0.001 |
|
|
Sb |
0.001 |
0.002 |
|
|
Si |
0.001 |
0.002 |
|
|
Sn |
0.0001 |
0.0003 |
|
|
Ti |
0.001 |
0.002 |
|
|
V |
0.001 |
0.002 |
|
|
Insoluble Matter in |
0.5 |
0.5 |
|
|
PH Value |
3.0-4.5 |
3.0-4.5 |
|
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