Chromic anhydride

GOST 2548-77

Appearance:
   Flakes of crimson-red colour.

Empirical formula:
   CrO₃.

Used in:
• Production of Cr metal of high quality, superhard materials, some catalyzers for chrome-plating, chromatizing and passivating processes;
• Production of electrolytic, chrome, catalyzers;
• Enters into composition of core sand mixture and foundry sand for producing cast materials. Used for etching processes and other purposes.

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 blue thin-walled steel drums of 25 kg net each, stacked on wooden pallets, shrink wrapped;
• UN-approved blue thin-walled steel drums of 50 kg net each, stacked on wooden pallets, shrink wrapped;
• UN-approved grey welded and folded steel barrels (drums) of 250kg net each, stacked on wooden pallets, shrink wrapped.