POTASSIUM DICHROMATE

GRADES: Tech/ EXTRA PURE / LR / AR / GR
Potassium dichromate is a chemical compound. It contains potassium and dichromate ions. It has a chemical formula of K2Cr2O7 (K2Cr). The chromium is in its +6 oxidation state.
Molar Mass: 294.185 g/mol

POTASSIUM DICHROMATE
Odour Odourless
Density 2.676 g/cm3, solid
Melting point 398 °C (748 °F; 671 K)
Boiling point 500 °C (932 °F; 773 K) decomposes
Solubility in water 4.9 g/100 mL (0 °C)
102 g/100 mL (100 °C)
Solubility insoluble in alcohol
Refractive index (nD) 1.738

APPEARANCE: BRIGHT RED CRYSTILLINE

USES / APPLICATIONS:

CLEANING, CONSTRUCTION, ETHANOL DETERMINATION LEATHER TANNING, PHOTOGRAPHY, SILVER TEST SULFUR DIOXIDE TEST, WOOD TREATMENT.

PROPERTIES:

It is a bright red crystalline solid. It is a strong oxidizing agent in acidic conditions. It is Non Absorbent, Water Soluble and Toxic.

PACKAGING:

Local – 50kg HDPE Bag with Airtight inside polylinner.
Export- 50 kg fibre drums.

SPECIFICATION – POTASSIUM DICHROMATE
SR NO. TEST TECH EXTRA PURE / LR AR/ GR
1. Description Bright orange red crystals Bright orange red crystals Orange red crystals and crystalline powder
2. Clarity Should be clear Should be clear Should be clear
3. Identity K: Passes Test CrO4 passes test K: Passes Test CrO4 passes test K: Passes Test CrO4 passes test
4. Assay  % w/w 98% NLT 99% 99.9 min
5. PH 5% of solution
(carbon dioxide-free water)
3.7 – 3.9 3.7 – 3.9 3.7 – 3.9
6. Insoluble matter % w/w 0.30% Max. 0.005 0.003
7. Chloride ( Cl )% w/w 0.50% NMT 0.01% 0.0005
8. Sulphate ( SO4) 0.30% MAX. NMT 0.02% NMT 0.01
9. Calcium (Ca) 0.10% Max. 0.003 0.002
10. Moisture 0.5% Max. NMT 0.5% NMT 0.5%
11. Sodium (Na) 0.10 MAX NMT 0.05% NMT 0.05%