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Potassium
Chromate is available as small yellow coloured free flowing crystals
Physiological Aspects
Handle all solutions of chromate with gloves on. If it comes in contact with any cuts or bruises on the skin, immediate washing of the affected part with a 5% solutions of sodium bisulphite and then with water is recommended, to prevent the formation of Chrome sores.
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The Indian Standard Specification for Techinical grade - IS 250 : 1961 is as follows:
Potassium Chromate
| Purity
K2CrO4 |
98.50%
Min |
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| Moisture Content |
00.50%
Max |
| Matter Insoluble in water |
00.10%
Max
Max. |
| Chloride (As CL) |
00.10% Max. |
| Sulphate (As
SO4) |
00.30%
Max |
Packing
50 kg. HDPE bags.
Application
It's main use is as a corrosion inhibitor and as an additive to oil drilling
muds.
Storage & Shelf Life
It is non-caking and if stored in a cool dry place away from heat, shelf life is indefinite. Being a
powerful oxidising agent, it should not be stored along with inflammable organic chemicals.
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