High quality 99.50% Sb2O3 antimony trioxide CAS 1309-64-4 Diantimony trioxide
CAS number: 1309-64-4
Appearance: white powder
Molecular formula: Sb2O3
Molecular weight: 291.50
Melting point: 656°C
Boiling point: 1425℃
Proportion: 5.2
Solubility: soluble in HCL and tartaric acid; insoluble in water and acetic acid.
Proportion: 5.2 Used as a flame retardant additive for polypropylene, polystyrene, polyvinyl chloride, nylon, engineering plastics (ABS), rubber, paint, paint, synthetic resin, paper and other materials. Used as an activator in polyester fiber to remove hidden air in molten glass. Used as covering agent and whitening in enamel and ceramic products. Used as a passivating agent in the catalytic cracking and catalytic reforming of petroleum and petroleum residual oil.
20/25KG pearl film bag, inner PE bag, 1000kgs wooden pallet, plastic film protection. It can be packaged according to the buyer's specific requirements.
| Grade | Sb2O399.80 | Sb2O399.50 | |||
|
Chemical composition(%) |
Sb2O3 not less than | 99.80Ⅰ | 99.80Ⅱ | 99.50 | |
| Impurities content | As | 0.0300 | 0.0500 | 0.0450 | |
| Pb | 0.0300 | 0.0500 | 0.0900 | ||
| Fe | 0.0050 | 0.0050 | 0.0060 | ||
| Cu | 0.0025 | 0.0025 | 0.0025 | ||
| Se | 0.0040 | 0.0040 | 0.0050 | ||
| Bi | 0.0030 | 0.0050 | 0.0050 | ||
| Cd | 0.0010 | 0.0010 | 0.0010 | ||
| Physical properties | Whiteness | 97 | 96 | 95 | |
| Average pariticle size(μm) | 0.4-0.9 | 0.8-1.5 | |||
Note: 1. When customers have special requirements for the chemical composition and physical properties of antimony trioxide, they can negotiate with our company to solve them, and the inspection will be carried out according to the negotiated standard;
2. Antimony trioxide is white powder, and there should be no visually distinguishable foreign objects
