| Customization: | Available |
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| CAS No.: | 1309-64-4 |
| Formula: | Antimony Trioxide |
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Flame retardant 99.8% Antimony Trioxide (CAS 1309-64-4)
Antimony trioxide
1309-64-4
Antimony trioxide is the inorganic compound with the formula Sb2O3. It is the most important commercial compound of antimony. It is found in nature as the minerals valentinite and senarmontite. Like most polymeric oxides, Sb2O3 dissolves in aqueous solutions with hydrolysis.
The main application is as flame retardant synergist in combination with halogenated materials. The combination of the halides and the antimony is key to the flame-retardant action for polymers, helping to form less flammable chars. Such flame retardants are found in electrical apparatuses, textiles, leather, and coatings.
Antimony trioxide Mflam ATO is a white fine powder and the main crystal structure is of cubical shape.
| Item | Sb2O3 | ||
| 99.8 | |||
| Chemical composition | Sb2O3%(min) | 99.8 | |
| Impurity | As2O3 % | 0.06 | |
| PbO % | 0.08 | ||
| Fe2O3 % | 0.006 | ||
| CuO % | 0.005 | ||
| Se % | 0.002 | ||
| Physicalproperty | White degree | 97 | |
| Average size(um) | 0.6-1.2 | ||
1. It is widely used as a fire retardant in the membranes of plastic industry ,the enclosures of electric devices and household electric appliances such as PVC, PP, PE, PS, ABS, PU, etc.
2. Used as filling, covering agents and retardants for rubber, ceramics, enamels, fabrics, and fiber products.
3. Used as pigments and retardants in oil paint and coating material industry.
4. Used as retardants in synthetic resin and papers;
5.Used as catalytic agent in organic synthesis.
Packed in 25 kg multiwall paper bags, 40 bags per pallet. 1 *20FCL=20MT
Mei Wang Chemical is an enterprise dedicated to R&D, production and sales, for environmentally friendly chemical additives, we mainly offer cost-effective, high performing and diversified flame retardants for different material systems, such as polymers, intumescent coating, textiles, etc.
Our strong technical support and extensive industry experience offers tailored, adapted, top-grade products for customer requests.
We have been providing our flame retardant for over 30 countries and regions overseas, our products are widely applied in automotive parts, home appliance, cable & wire, electronics, construction and building, furniture, etc.
Professionalism, Reliability, Concentration defines our business principles, meanwhile the constant innovation is leading us to be the world's leading flame retardant and application technology service solutions provider.
Q1: What types of flame retardants does your company specialize in?
A: We offer a comprehensive range of flame retardants including: halogen-free and halogen-based flame retardants, flame retardant masterbatches, inorganic flame retardants.
Our products serve polymers, coatings, textiles, and various industrial applications.
Q2: How does your R&D team support customized solutions?
A: With our advanced laboratory in Hangzhou, we:
• Analyze your material specifications and fire safety requirements
• Develop tailored formulations through extensive testing
• Provide technical documentation including TDS, MSDS
• Offer application guidance for optimal performance
Q3: What certifications do your products hold?
A: Our products comply with:
UL94 (plastic flammability)
ROHS/REACH (environmental standards)
Custom certification support available
Q4: Can you assist with formulation challenges for specific polymers?
A: Yes. Our technical team has successfully solved flame retardancy issues for:
Engineering plastics (PA, PBT, PC/ABS)
Thermoplastics (PP, PE, PVC)
Thermosetting resins (Epoxy, Unsaturated Polyester)
Specialty coatings
Q5: What's your MOQ and lead time?
A: Standard MOQ is 1000kg with 10-20 days production time. For:
Sample orders: 1-25kg available
Urgent orders: Express production options
Stock products: Immediate shipment
Q6: Do you provide application testing support?
A: We offer:
• On-site combustion testing videos
• Technical consultation for your specific substrate
• Comparative performance data vs industry standards
• Failure analysis and solution optimization
Q7: What makes your flame retardants competitive?
→ Balanced performance in flame retardancy vs mechanical properties
→ Cost-effective solutions without compromising quality
→ Regulatory expertise for global markets
→ 12+ years of formulation experience
Q8: How do you handle international logistics?
A: We work with certified forwarders to ensure:
• Proper hazardous material classification (where applicable)
• Efficient customs clearance documentation
• Flexible shipping terms (FOB, CIF, DDU, DDP)
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