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By certification 
Sb2O3
ANTIMONY TRIOXIDE
Sb2O3 polyester catalyst
| Premium grade | First grade | |
| Sb2O3 | ≥99.90% | ≥99.80% |
| AS2O3 | ≤0.01% | ≤0.04% |
| PbO | ≤0.01% | ≤0.04% |
| Cuo | ≤0.001% | ≤0.002% |
| Fe2O3 | ≤0.001% | ≤0.003% |
| turbidity ppm | ≤10 | ≤20 |
| eg dissolved light transmittance | 97 | 95 |
| tartaric acid insoluble | ≤0.05 | ≤0.10 |
| whiteness | ≥97 | ≥97 |
| average particle size | 0.4-0.6um | 0.4-0.6um |
Sb2O3 fire retardant
| Premium grade | First grade | |
| Sb2O3 | ≥99.80% | ≥99.5% |
| AS2O3 | ≤0.05% | ≤0.06% |
| PbO | ≤0.08% | ≤0.10% |
| Fe2O3 | ≤0.005% | ≤0.006% |
| Cuo | ≤0.002% | ≤0.002% |
| Se | ≤0.002% | ≤0.002% |
| whiteness | ≥97 | ≥97 |
| average particle size | 0.4-0.5um 0.8-0.9u | 0.4-0.5um 0.8-0.9u |
use
As a polyester catalyst, Sb2O3 is mainly used as the polycondensation catalyst of polyester.In addition,it is also used in the electronic ceramics, fluorescent powder and other industries.
Aa a kind of fire retardant,Sb2O3 is mainly used as a synergistic agent in the flame retard of plastics,resin,rubber,paint,fabrics,cooper clad laminate and other inflammables for improvement of fire retardance.
Packing
Sb2O3 is packed in plastic-paper bags in a unit net weight of 25kg,and stored in dry places with moisture protection.
