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Antimony Trioxide

Type: Flame retardant

Development / Applications

Antimony trioxide is a highly effective flame retardant. Additionally, when used in conjunction with brominated, chlorinated, or borate compounds, it creates a synergistic effect, reducing flame time and ignition gas generation. When used for PVC-based cable sheathing, it can achieve the most demanding properties for high-voltage or THWN2 type cables. Combined with borate compounds, it can reduce gas emissions and also allows for a good LOI (Load of Ignition). It is a good additive for complying with UL 94 standards.
Storage
This product should be stored at room temperature. Once opened, the packaging should be tightly closed.
The safety data sheet for handling this material is available upon request. Prolonged skin contact may cause irritation. Those handling this product should wear safety glasses and rubber gloves. In case of eye contact, rinse immediately with plenty of water. Exposed body parts should be washed with soap and water.
25 kg bags
Download technical data sheet
PHYSICAL PROPERTIESSPECIFICATION
AppearanceSolid
Particle size (µm)0.8–1.3
Specific Gravity5.5 Max.
Sieve residues <325 Mesh (%)≤ 0.10
TYPICAL COMPOSITION Sb₂O₃SPECIFICATION
Antimony Trioxide (%)≥ 99.8
Arsenic (%)≤ 0.10
Lead (%)≤ 0.10
Iron (%)≤ 0.004

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