The ammonium paratungstate（APT）is producing according to national standard GB10116-88，and also produce according to enterprise standard which quality requirement is higher than the national standard, it is top-quality product of Guangxi.The blue tungsten oxide is produc according to national standard GB/T3457-97L,and also use enterprise standard as quality control,the quality is better than national standard.
|
Chemical composition
|
Ammonium paratungstate APT-0 |
Chemical composition
|
Blue tungsten oxide |
|
GB10116-88
National standard （%） |
Enterprise standard （%） |
GB/T3457-97L
National standard （%） |
Enterprise standard （%） |
|
Al |
0.0005 |
< 0.0005 |
Al |
0.0005 |
< 0.0005 |
|
As |
0.0010 |
≤
0.0007 |
As |
0.0010 |
≤
0.0007 |
|
Bi |
0.0001 |
< 0.0001 |
Bi |
0.0001 |
< 0.0001 |
|
Ca |
0.0010 |
≤
0.0006 |
Ca |
0.0010 |
≤
0.0006 |
|
Co |
0.0010 |
≤
0.0002 |
Co |
0.0010 |
< 0.0002 |
|
Cr |
0.0010 |
< 0.0001 |
Cr |
0.0010 |
< 0.0002 |
|
Cu |
0.0003 |
< 0.0001 |
Cu |
0.0003 |
< 0.0001 |
|
Fe |
0.0010 |
< 0.0009 |
Fe |
0.0010 |
< 0.0009 |
|
K |
0.0010 |
≤
0.0008 |
K |
0.0010 |
< 0.0009 |
|
Mn |
0.0010 |
< 0.0002 |
Mn |
0.0010 |
< 0.0002 |
|
Mg |
0.0007 |
< 0.0005 |
Mg |
0.0007 |
< 0.0005 |
|
Mo |
0.0020 |
≤
0.0016 |
Mo |
0.0020 |
< 0.0020 |
|
Na |
0.0010 |
< 0.0010 |
Na |
0.0010 |
< 0.0011 |
|
Ni |
0.0007 |
< 0.0005 |
Ni |
0.0007 |
< 0.0005 |
|
P |
0.0007 |
≤
0.0007 |
P |
0.0007 |
≤
0.0005 |
|
Pb |
0.0001 |
< 0.0001 |
Pb |
0.0001 |
< 0.0001 |
|
S |
0.0007 |
≤
0.0007 |
S |
0.0007 |
< 0.0005 |
|
Sb |
0.0008 |
< 0.0003 |
Sb |
0.0005 |
0.0003 |
|
Si |
0.0010 |
< 0.0009 |
Si |
0.0010 |
< 0.0009 |
|
Sn |
0.0001 |
< 0.0001 |
Sn |
0.0002 |
< 0.0001 |
|
Ti |
0.0010 |
< 0.0002 |
Ti |
0.0010 |
< 0.0002 |
|
V |
0.0010 |
< 0.0002 |
V |
0.0010 |
< 0.0002 |
|
Cd |
0.0001 |
< 0.0001 |
Cd |
0.0001 |
< 0.0001 |
|
WO3 |
≥88.5% |
89.10% |
WO3 |
|
99.98% |
|
