IUPAC Name
Chromic Acid
Cas Number
1333-82-0
HS Code
2819.10.00
Formula
H2CrO4
Industry
-
Appearance
Dark-purple Solid
Common Names
Chromic(VI) acid, Chromic acid flakes, Chromium Trioxide
Packaging
1000 @ 25 kg PP / PE bags 25 MT / 20 FCL
Brief Overview
Chromic acid is a dark red strong and corrosive oxidising agent which is easily soluble in water. It is usually added to concentrated sulfuric acid to produce a dichromate mixture, including solid chromium trioxide. This kind of chromic acid may be used as a cleaning mixture for glass. Chromic acid is capable of oxidizing many organic product including methylbenzene and aldehydes. Millions of tonnes of chromic acid is produced annually for electroplating.
Manufacturing process
Chromium sulfate is decomposed with lime and heat. The chromate of lime is treated with sodium sulphate to yield soluble sodium chromate and gypsum. The addition of sulfuric acid will liberate the chromic acid.
Chromium plating
Chromic acid is an intermediate in chromium plating and used in ceramic glazes and colored glass.
Cleaning agent
Chromic acid is used to clean laboratory glassware, particularly of otherwise insoluble organic residues.
Chemical industry
Chromic acid is used as an oxidizing agent in the production of organic synthesis and preparation of other chrome chemicals of analytical grades.