CHROMIC ANHYDRIDE
GOST 2548-77
Appearance:
Flakes of crimson-red colour.
Empirical formular:
CrO3.
- Used in:
- Production of Cr metal of high quality, superhard materials, some catalyzers for chrome-plating, chromatizing and passivating processes;
- Production of elecrolytic, chrome, catalyzers;
- Enters into composition of core sand mixture nad foundry sand for producing cast materials. Used for etching processes and.
| Specification | Grade A | Grade B | Grade C |
| Total mass fraction of Chromic Anhydride (CrO3), % min | 99,7 | 98,8 | 98,0 |
| Total mass fraction of water-insolubles , % max | 0,02 | 0,05 | not normalized |
| Total mass fraction of Sulphates (SO4), % max | 0,06 | 0,18 | not normalized |
| Total Mass fraction of Sodium (Na), % max | 0,05 | not normalized | not normalized |
- Packing:
- UN-approved metal drums of 50 kg net, unpainted;
- UN-approved blue metal drums with removeable top of 50 kg net;
- UN-approved gray metal drums with removeable top of 250 kg net.