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Product Name:
Potassium Bichromate
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Product Name:Potassium Dichromate
Cas No.7778-50-9
Potassium Dichromate is an odorless, fine, red-orange, granular and crystalline product that dissolves readily in water.
2 CrO 4 2- (aq) + 2 H + (aq)  Cr 2 O 7 2- (aq) + H 2 O (l)
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PHYSICAL PROPERTIES:
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S.No
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Description
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Specifications
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1
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Molecular Formula
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K 2 Cr 2 O 7
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2
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Molecular weight
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294.19
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3
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Bulk Density (g/ml)
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1.4 to 1.6
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4
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Solubility in water (%).
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6.5% at 10 Deg C
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5
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Appearance
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Red-orange crystalline solid
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6
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Odor
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Odorless
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CHEMICAL PROPERTIES:
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S.No
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Description
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Specifications
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1
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Assay, Wt% min
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99.0
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2
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PH of 5% Solution
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8.6 to 9.8
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3
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Sulphate, Wt% Max
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0.25
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4
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Chloride, Wt% Max
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0.2
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APPLICATIONS:
- Chromium source in preparing chromium compounds
- Leather tanning and screen printing
- Electroplating
- Pyrotechnics and explosives
- Pigment preparation
- Wood preservative
- Metal treating and corrosion inhibitor
- Oil drilling & silver testing
- Catalyst for the chromium metal production
- Photographic engraving
- Preparation of "chromic acid", which can be used for etching materials
PACKAGING:
- 25 kg or 50 kg inner layer polyethylene, outer layer polypropylene woven bags
- 1000 kg big bags. Palletized and shrink wrapped
STORAGE & HANDLING CONDITIONS:
- Store in cool and dry place
- Keep away from sunlight and heat sources
- Protect against physical damage
- Store in a dry location separate from combustible, organic or other readily oxidizable
materials
- Avoid storage on wood floors
- Remove and dispose of any spilled dichromate; do not return to original containers
- Containers of this material may be hazardous when empty since they retain product residues (dust, solids); observe all warnings and precautions listed for the product
SAFETY PRECAUTIONS:
- Harmful effect on skin and eye
- After contact with skin and eye wash immediately with water
- Avoid breathing the dust
- Wear special protective equipment such as protective clothing, including boots, gloves, lab coat, apron or coveralls, as appropriate, to prevent skin contact for maintenance break-in or where exposures may exceed established exposure levels
- Use chemical safety goggles and/or full-face shield where dusting or splashing solutions is possible. Maintain eye wash fountain and quick-drench facilities in work area
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