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| 三氧化钨Tungsten
Trioxide |
|
|
| ■ 分子式
Molecular Formula:WO3 |
| ■ 外观:淡黄色结晶粉末。 |
| Appearance:Light yellow crystallized
powder. |
| ■松装密度Apparent
Density:2.5-3.0g/cm3 |
| ■用途:主要用作硬质合金,钨粉和钨基合金制品,电真空,电光源器材的原料及化工原料。 |
| Application:Mainly used as
the raw material for cemented carbide,tungsten powder,W-base
alloy product,vacuum electronic device and electro-optical
device and chemical industry as well. |
| |
|
| 牌号与化学成分Grade
and Chemical Composition: |
| 产品牌号Grade |
WO3-0 |
WO3-1 |
WO3-2 |
WO3-Cr |
| 纯度,不低于Purity
Min.(%) |
99.98 |
99.95 |
99.90 |
|
| 化学元素含量,不大于Content
of Other Chemical Element Max.(%) |
Al |
0.0005 |
0.001 |
0.001 |
0.001 |
| As |
0.001 |
0.001 |
0.002 |
0.002 |
| Bi |
0.0001 |
0.0001 |
0.0005 |
0.0001 |
| Ca |
0.001 |
0.001 |
0.003 |
/ |
| Co |
0.001 |
0.001 |
0.002 |
/ |
| Cr |
0.001 |
0.001 |
0.001 |
0.32-0.40 |
| Cu |
0.0003 |
0.0005 |
0.001 |
0.001 |
| Fe |
0.001 |
0.001 |
0.003 |
0.003 |
| K |
0.001 |
0.0015 |
0.002 |
0.002 |
| Mg |
0.0005 |
0.001 |
0.002 |
/ |
| Mn |
0.0005 |
0.001 |
0.001 |
0.001 |
| Mo |
0.002 |
0.005 |
0.02 |
/ |
| Na |
0.001 |
0.0015 |
0.003 |
0.002 |
| Ni |
0.0005 |
0.0007 |
0.001 |
0.001 |
| P |
0.0005 |
0.001 |
0.003 |
0.003 |
| Pb |
0.0001 |
0.0001 |
0.0005 |
0.0003 |
| S |
0.0005 |
0.001 |
0.001 |
0.0001 |
| Sb |
0.0005 |
0.001 |
0.002 |
0.0002 |
| Si |
0.001 |
0.001 |
0.003 |
0.0002 |
| Sn |
0.0001 |
0.0005 |
0.0005 |
0.0005 |
| Ti |
.0001 |
0.001 |
0.002 |
/ |
| V |
0.001 |
0.001 |
0.002 |
/ |
|
