Industrial Grade Fireproof Flame Retardant 99% Powdered Antimony Trioxide

• Customization: Available
• CAS No.: 1309-64-4
• Formula: Sb2o3
• EINECS: 1309-64-4
• Classification: Antimony Trioxide
• Grade Standard: Industrial Grade
• Kind: Amphoteric Oxide
• Quality: First Class
• Other Name: Antimony(III) Oxide; Antimony Sesquioxide
• Appearance: White Powder
• Odor: Odorless
• Molar Mass: 291.518 G/Mol
• Density: 5.20 g/cm3
• Transport Package: 25kg/Bag(S) or Jumbo Bag(S)
• Specification: 99%
• Trademark: Ethai™
• Origin: China
• HS Code: 2825800000
• Production Capacity: 300, 000 Mt/Year

Product Description

Antimony Trioxide

    Antimony Trioxide is a white, fine-powder inorganic compound primarily employed as a highly effective flame retardant and functional additive in the enamel & glass industries. It is classified as a toxic substance and requires careful handling. It often performs synergistically with halogenated compounds to significantly enhance flame-retardant effect.

Specification

Item	Result
Sb2O3 Content	≥99.58%
As2O3 Content	≤0.020%
PbO Content	≤0.055%
Fe2O3 Content	≤0.0038%
CuO Content	≤0.0012%
Se Content	≤0.0010%
Whiteness	≥95.3%

Application

Flame Retardancy

Enamel & Ceramic Industry

Glass Manufacturing

    A primary application is as a synergistic flame retardant. It is commonly used alongside halogenated compounds in plastics, rubber & textiles to suppress combustion reactions and promote the formation of protective char layers, significantly improving fire resistance.

    Serves as a performance-enhancing additive that improves surface gloss, hardness & chemical durability in enamel formulations. It is also utilized in ceramic glazes to modify color and functional properties.

    Functions as a refining agent to eliminate bubbles and enhance the transparency & refractive index of glass. It is particularly valuable in producing optical & specialty glass with high clarity.

Packing & Delivery

Packing Details

Delivery Details

Sample Packing: Foil bags
Bulk Packing: 25 kgs bags or jumbo (ton) bags

Sample Shipping: Shipped within 1~3 days after sample order confirmation via FedEx, UPS, DHL or EMS
Bulk Shipping: Shipped within 7~10 days after bulk order confirmation via sea freight or air freight. We will also fully cooperate if customers have familiar freight forwarders.

Company Profile

Shanghai Ethaichem Co., Ltd.

    Shanghai Ethaichem Co., Ltd. is a high-tech manufacturing enterprise specializing in the production of high-performance inorganic pigments & functional chemical materials. With a skilled workforce of over 200 employees & covering an area of 60 acres, the company operates integrated R & D, production and sales facilities capable of producing 100,000 tons of coating raw materials annually. Equipped with advanced manufacturing systems & automated production lines, the company is dedicated to delivering products of consistent quality & reliable performance. It has been certified under ISO 9001, ISO 14001 & OHSAS 18001 management systems, ensuring stringent control over quality, environmental impact & occupational health and safety.

    The company's manufacturing portfolio includes titanium dioxide, zinc oxide, antimony trioxide & a full range of iron oxide pigments (including yellow, orange, black, red & others). These products are widely used across various industries, with a strong emphasis on the paint and coatings sector. Titanium dioxide is recognized for its excellent hiding power and dispersion properties, making it ideal for high-quality architectural & industrial coatings. Zinc oxide is mainly used as a functional pigment and additive to improve the corrosion resistance, weather resistance, antibacterial and mildew resistance of coatings. Antimony trioxide serves as a highly effective flame retardant synergist, widely applied in plastics, rubber & other polymer materials. The iron oxide series offers consistent color stability, weather resistance and durability, making them suitable for demanding applications such as industrial coatings, construction materials & colored concretes. 

   In addition to standard grades, the company provides customized solutions tailored to specific customer requirements,supported by a professional technical team and well-established R & D platforms. Strategically located in Shanghai with efficient logisticsconnections, the company exports its products to markets in Europe, the Americas, the Middle East & Southeast Asia. Committed to innovation andexcellence, Shanghai Ethaichem aims to be a global leader in functionalmaterials, providing superior products and technical support to customersworldwide. 

FAQ

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Q1: Packing Terms
    Standard packing: 25 kgs bags or jumbo (ton) bags.
    Custom packing is available if you have a legally registered patent for specific packaging or special needs (subject to relevant document confirmation, if applicable).
 
Q2: Payment Terms
    Accepted methods: T/T , Western Union, Bitcoin, Tether (USDT). Confirm your preferred method with our sales team before ordering.
 
Q3: Shipping Method
    Small packages (samples/small-quantity orders): Via international couriers (DHL, UPS, FedEx, EMS).
    Bulk shipments: Sea/air freight arranged based on your order volume and delivery timeline.
 
Q4: Delivery Time
    In-stock products: Shipped within 1~2 business days after receiving your advance payment.
    Custom/non-stock products: Timeline varies by product type and order quantity (clear timeline provided in quotation).
 
Q5: MOQ & Free Samples
    MOQ: Low MOQ for small-batch purchases (specific details in quotation).
    Samples: Not less than 1 kg free for quality testing (customers cover shipping costs).
 
Q6: Order Process
    (1) Inform us of your product requirements (type/specifications) or intended application.
    (2) We issue a detailed quotation based on your needs or professional recommendations.
    (3) After confirming sample quality (if requested), place a official order & pay the advance deposit.
    (4) We arrange production immediately after receiving the deposit (discounts for large-quantity orders).
 
Q7: Product Quality Guarantee
    100% quality inspection for all products before delivery.
    If quality issues arise from our production/inspection, we offer free replacements or refunds (subject to issue confirmation via photos/videos).
 
Q8: Long-Term Mutually Beneficial Cooperation
    Maintain consistent quality and competitive pricing to protect your interests and market competitiveness.
    Treat customers as partners (not just "friends"): conduct business with sincerity, respect geographical/cultural differences & build trust.