Shaanxi Shangnan County Dongzheng Chemical Co., Ltd. 
1. Appearance
Lemon-yellow crystals.
2. Physical and Chemical Properties
Soluble in water, insoluble in alcohol. The aqueous solution is alkaline and acts as a strong oxidizing agent.
3. Applications
Used as analytical reagent, for spectroscopic analysis, oxidizing agent, mordant, metal antirust agent, and in the pharmaceutical industry.
4. Product Information
English Name: Potassium Chromate
CAS No.: 7789-00-6
Molecular Formula: K₂CrO₄
Molecular Weight: 194.20
5. Product Categories and Quality Standards
Standard: HG/T3440-1999
Quality Index | Guaranteed Reagent (GR) | Analytical Reagent (AR) | Chemically Pure (CP) |
Potassium Chromate (as K2CrO4), w/ % ≥ | 99.50 | 99.50 | 99.00 |
| pH Value (50 g/L, 25°C) | 8.6-9.8 | 8.6-9.8 | 8.6-9.8 |
| Water Insolubles, w/% ≤ | 0.002 | 0.004 | 0.01 |
Chlorides (as Cl), w/% ≤ | 0.001 | 0.003 | 0.005 |
Sulfate Content (as SO4), w/ % ≥ | 0.01 | 0.02 | 0.05 |
Sodium Content (as Na), w/ % ≥ | 0.05 | 0.10 | -- |
| Calcium Content (as Ca), w/ % ≥ | 0.001 | 0.005 | 0.010 |
| Lead Content (as Pb), w/% ≤ | 0.005 | -- | -- |
6. Packaging: Packed in 50 kg reinforced woven bags with inner plastic lining.
7. Storage
Store in a cool and ventilated warehouse, away from sources of ignition and heat, and protected from direct sunlight. Keep the packaging sealed. Store separately from reducing agents, flammable substances, and edible chemicals. Empty containers may retain hazardous residues and must be thoroughly cleaned and detoxified before disposal.
