Shaanxi Shangnan County Dongzheng Chemical Co., Ltd. 
1. Appearance
Yellow rhombic crystals, semi-transparent.
2. Physical and Chemical Properties
A strong oxidizer, hygroscopic, loses crystal water at 68℃, and is soluble in water.
3. Applications
It is mainly used in inks, paints, pigments, metal corrosion inhibitors, oxidizing agents for organic synthesis, as well as for leather tanning and dyeing and is used as analytical reagent, rust inhibitor, mordant, and tanning agent.
4. Product Information
English Name: Disodium Chromate
CAS Number: 10034-82-9
Molecular Formula: Na₂CrO₄•4H₂O
Molecular Weight: 234.03
5. Product Category and Quality Standards
Standard: HG/T4312-2012
Quality Index | Specification | |
First Grade | Qualified Grade | |
Content (as Na₂CrO₄•4H₂O), w/% ≥ | 98.50 | 98.00 |
| Chlorides (as Cl), w/% ≤ | 0.20 | 0.20 |
Sulfates (as SO₄), w/% ≤ | 0.30 | 0.40 |
| Water-insoluble substances, w/% ≤ | 0.02 | 0.03 |
6. Packaging
25kg reinforced woven poly bags with polyethylene liner.
8. Storage
Store in a cool and ventilated warehouse, away from ignition sources and heat sources, and prevent from direct sunlight. Store in sealed containers and separately from reducing agents, flammable materials, and food chemicals. Mixing storage is strictly prohibited.
