Chromic Acid (Chromic Anhydride)

APPLICATION

Of the twenty million or more pounds of chromic acid produced annually,
approximately 70% is consumed by the metal finishing industry. This amount
includes, in addition to chromium plating and anodizing, material used in the
compounding of conversion coatings for zinc and cadmium surfaces, surface
treatment products for aluminum prior to painting, a sealant for phosphatizing
processes, and oxide control treatments for aluminum prior to spot welding.
Approximately 20% of the chromic acid is used by the pigment industry. Shades of
yellows and greens not possible with bichromate of soda are produced by using
chromic acid. The remaining 10% is consumed in various ways. One use is in the
manufacture of catalysts for oil refining, and for the vegetable shortening industry.
Another use is in the manufacture of medicines such as Cortisone.

PROPERTIES

Total content of Chromic Anhydride CrO3, %, min 99,5
Total content of substances insoluble in water, %, max 0,03
Total content of sulfates, %, max 0,07
Total content of sodium, %, max 0,06

HAZARD IDENTIFICATION AND SAFETY REQUIREMENTS
Irritation respiratory system; nasal septum perforation; liver, kidney damage;
leukocytosis (increased blood leukocytes), leukopenia (reduced blood leukocytes),
eosinophilia; eye injury, conjunctivitis; skin ulcer, sensitization dermatitis; [potential
occupational carcinogen].

TRANSPORTATION AND PACKING

30/50 kg drums, 250 kg barrels.