Description:
Cr03: solid purple flake; melting point 197°C; specific gravity 2.7; strong oxidant, highly corrosive, toxic and deliquescent; can be used for chrome plating, wood preservation, metal passivation, catalyst manufacturing, chrome yellow pigments, chrome oxide green, and as a mordant or oxidizing agent.
Technical indicators:
|
|
National standard
GB/T 1610-1999 |
Company control |
|
Premium |
First grade |
Second grade |
Premium |
First grade |
|
Chromic anhydride (CrO3) percent ≥ |
99.7 |
99.5 |
99.0 |
99.7 |
99.5 |
|
Water insolubles percent ≤ |
0.02 |
0.05 |
0.10 |
0.02 |
0.05 |
|
Sulfates (in SO4) percent ≤ |
0.06 |
0.15 |
0.30 |
0.06 |
0.15 |
|
Sodium （Na）percent ≤ |
0.05 |
- |
- |
0.05 |
- |
|
Ratio of premium products percent≥ |
|
95 |
- |
|
Qualification rate of packed weight percent |
|
100 |