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99.5%-99.9% Antimony Trioxide Sb2O3 CAS 1309-64-4 Flame Retardant Supplier

Product Name: Antimony Trioxide/ATO
CAS No: 1309-64-4
MF: O3Sb2
Purity: 99%min
Appearance: White powder
Particle size: 1-3um Can be supplied according to customer requirements.
Availability:
Quantity:
  • Antimony Trioxide

  • SINOBIO

  • 2825800000


99.5%-99.9% Antimony Trioxide Sb2O3 CAS 1309-64-4 Flame Retardant Supplier



Antimony Trioxide (ATO), with the chemical formula Sb₂O₃ and CAS No. 1309-64-4, is an inorganic industrial chemical widely used as a flame-retardant synergist, pigment and chemical intermediate. Sinobio supplies Antimony Trioxide in high-purity grades including 99.5%, 99.8% and 99.9%, with a typical particle size of 1–3 μm that can be customized according to customer requirements.


The product is supplied as a white powder with good thermal stability and is suitable for a variety of industrial manufacturing processes. Antimony Trioxide is commonly used together with other flame-retardant systems in plastics, rubber, textiles and electronic materials. It is also used in paints, white glass, enamel and other material production applications.


With consistent purity, controlled particle size and flexible packaging options, Sinobio Antimony Trioxide is suitable for both industrial bulk supply and smaller-scale testing requirements.


For product specifications, COA, sample availability, packaging, MOQ and quotation, please contact Sinobio Chemistry.



Key Applications


1. Flame Retardant

Antimony Trioxide is widely used as a flame-retardant synergist in plastics, rubber, textiles and electronic materials. It is commonly formulated with other flame-retardant systems to improve fire-resistance performance.

2. Plastics & Rubber

The fine particle size and high purity make Sb₂O₃ suitable for incorporation into selected plastic and rubber formulations requiring flame-retardant systems.

3. Textiles

Antimony Trioxide can be used as a synergistic additive in flame-retardant textile formulations.

4. Paints, Glass & Enamel

With a listed whiteness of ≥95.3%, Antimony Trioxide can be used in selected pigment and material-production applications, including paints, white glass and enamel.

5. Chemical Intermediate

Antimony Trioxide is also used as an intermediate or catalyst-related raw material in the production of antimony-containing compounds.

Free-Sample-Diantimony-Trioxide-Powder-Sb2o3-CAS-1309-64-4-Antimony-Trioxide-P (3)


RFQ


Q1: What is Antimony Trioxide?

A1: Antimony Trioxide is an inorganic compound with the chemical formula Sb₂O₃ and CAS No. 1309-64-4, widely used as a flame-retardant synergist and industrial chemical.


Q2: What is the CAS number of Antimony Trioxide?

A2: The CAS number of Antimony Trioxide is 1309-64-4.


Q3: What is the purity of your Antimony Trioxide?

A3: The product specification lists 99% min, with 99.5%, 99.8% and 99.9% grades available.


Q4: What is the appearance of Antimony Trioxide?

A4: Antimony Trioxide is supplied as a white powder.


Q5: What is the particle size of your Sb2O3 powder?

A5: The standard particle size is 1–3 μm, and customized particle sizes can be supplied according to customer requirements.


Q6: What is Antimony Trioxide used for?

A6: Antimony Trioxide is mainly used as a flame-retardant synergist in plastics, rubber, textiles and electronic materials. It is also used in pigments, glass, enamel and chemical applications.


Q7: Can Antimony Trioxide be used in plastics?

A7: Yes. Antimony Trioxide is widely used as a synergistic additive in flame-retardant plastic formulations.


Q8: Can Antimony Trioxide be used in rubber?

A8: Yes. Sb₂O₃ can be used in selected flame-retardant rubber formulations.


Q9: Is Antimony Trioxide suitable for textile flame retardants?

A9: Yes. Antimony Trioxide can be used as a synergist in selected flame-retardant textile systems.


Q10: What packaging is available for Antimony Trioxide?

A10: Standard packaging includes 25 kg kraft bags, while bulk orders can use 500 kg or 1000 kg super sacks. Customized 1 kg, 5 kg and 10 kg packaging is also available.


Q11: Can you provide an Antimony Trioxide sample?

A11: Yes. Samples are available for customer testing and evaluation.


Q12: Can you provide 99.9% Antimony Trioxide?

A12: Yes. Sinobio lists 99.5%, 99.8% and 99.9% Antimony Trioxide grades.


Q13: Can the particle size of Sb2O3 be customized?

A13: Yes. The standard particle size is 1–3 μm, and particle size can be customized according to customer requirements.


Q14: Are you an Antimony Trioxide supplier in China?

A14: Sinobio Chemistry supplies Antimony Trioxide for industrial applications and offers bulk supply, samples and customized packaging according to customer requirements.


Q15: How can I get a quotation for Antimony Trioxide?

A15: Please provide your required purity, particle size, order quantity, packaging requirements and destination port so we can prepare a suitable quotation.

Item

Specification

Product Name

Antimony Trioxide / ATO

Chemical Name

Antimony Trioxide

CAS No.

1309-64-4

Molecular Formula

Sb₂O₃ / O₃Sb₂

Molecular Weight

291.52 g/mol

Purity

99% min

Available Grades

99.5%, 99.8%, 99.9%

Appearance

White Powder

Particle Size

1–3 μm

Particle Size Customization

Available

Melting Point

Approx. 656°C

Boiling Point

Approx. 1456°C

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%

Net Weight per Batch

20 MT

Sample

Available

Standard Packaging

25 kg Kraft Bag

Pallet Packaging

1 MT / Pallet

Bulk Packaging

500 kg / 1000 kg Super Sack

Custom Packaging

1 kg / 5 kg / 10 kg Available

Main Application

Flame Retardant

Other Applications

Pigment, Glass, Enamel, Chemical Intermediate

Supply Type

Industrial Bulk Supply

1. High-Purity Grades

Available in 99.5%, 99.8% and 99.9% purity grades, meeting different industrial formulation and application requirements.

2. Fine & Uniform Particle Size

Standard particle size is 1–3 μm, supporting good dispersion and consistent performance in industrial formulations. Customized particle sizes are also available.

3. Excellent Flame-Retardant Synergy

Antimony Trioxide (Sb₂O₃) is widely used as a flame-retardant synergist in plastics, rubber, textiles and other polymer materials.

4. Wide Industrial Applications

Suitable for flame-retardant systems, plastics, rubber, textiles, paints, glass, enamel and other industrial applications.

5. Stable White Powder

Supplied as a white powder with listed whiteness of ≥95.3%, suitable for applications where appearance and material consistency are important.

6. Flexible Packaging Options

Available in 25 kg kraft bags, 500 kg and 1000 kg super sacks, with smaller customized packages such as 1 kg, 5 kg and 10 kg available according to requirements.

7. Bulk Supply Capability

Suitable for both sample testing and large-volume industrial procurement, supporting different purchasing requirements.

8. Customized Specifications

Particle size and packaging can be adjusted according to the customer's application, production process and purchasing requirements.

9. Quality-Controlled Raw Material

Controlled specifications for Sb₂O₃ content, As₂O₃, PbO, Fe₂O₃, CuO, Se and whiteness help customers evaluate product consistency for industrial use.

10. Professional B2B Supply Service

Samples, technical specifications, customized packaging and bulk orders can be arranged according to customer requirements.

Sinobio Antimony Trioxide is available in flexible packaging options for both industrial bulk orders and small-volume testing.

*Standard Packaging

25 kg kraft bags

Shrink-wrapped and palletized

1 metric ton per pallet

*Bulk Packaging

500 kg super sacks

1000 kg super sacks

*Custom Packaging

1 kg

5 kg

10 kg

Samples are available upon request. Packaging and shipping arrangements can be confirmed according to order quantity, packaging requirements and destination.

For a shipping quotation, please provide the required purity, particle size, quantity and destination port.

Antimony Trioxide Sb2O3 25kg kraft bag packaging
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