Antimony Trioxide

CAS Number: 1309-64-4

Molecular Formula: O3Sb2

SynergistHalogenated flame retardantPET CatalystStandard Grade: 99.5Extra Pure Grade: 99.8Catalyst Grade: 99.9Purity: 99.5%, 99.8%, 99.9%Buy Antimony Trioxide BulkCAS 1309-64-4 manufacturer

About Antimony Trioxide

Antimony Trioxide (Sb₂O₃) or ATO is a versatile inorganic compound universally used across multiple industrial sectors, primarily as a flame retardant. Predominantly utilised in the production of plastics, textiles, glass, and electronic components. Antimony Trioxide main role is as a synergist in halogenated flame ret...

Variants

Antimony Trioxide Standard Grade: 99.5%

CAS: 1309-64-4

Antimony Trioxide Specifications

CAS Number

1309-64-4

Molecular Formula

O3Sb2

Molecular Weight

291.52 g/mol

IUPAC Name

bis(antimony(3+));tris(oxygen(2-))

Canonical SMILES

[O-2].[O-2].[O-2].[Sb+3].[Sb+3]

InChI Key

GHPGOEFPKIHBNM-UHFFFAOYSA-N

InChI

1S/3O.2Sb/q3*-2;2*+3

PubChem CID

14794

EINECS Number

215-175-0

MDL Number

MFCD00011214

UNSPSC Code

12352303

eClass

38080202

HSN No

28258010

CAS Number

1309-64-4

Molecular Formula

O3Sb2

Molecular Weight

291.52 g/mol

IUPAC Name

bis(antimony(3+));tris(oxygen(2-))

Canonical SMILES

[O-2].[O-2].[O-2].[Sb+3].[Sb+3]

InChI Key

GHPGOEFPKIHBNM-UHFFFAOYSA-N

InChI

1S/3O.2Sb/q3*-2;2*+3

PubChem CID

14794

EINECS Number

215-175-0

MDL Number

MFCD00011214

UNSPSC Code

12352303

eClass

38080202

HSN No

28258010

Molecular Weight

291.52 g/mol

Melting Point

656°C

Solubility

Insoluble in water, soluble in acids

Apperance

White Free Flowing Powder Free Form Visible Contamination

Color

White

Odor

Odorless

Boiling Point

1590°C

Density

5.4 g/cm³

0.04 Max (ICP-OES)

Stability period

5 years

(H) Statements Code

H302, H315, H319, H335

(P) Statements Code

P264, P270, P301 + P312, P305 + P351 + P338

GHS Classification

Category 2, 2A, 3, 4

Storage Class Code

13 - Non-combustible solids

Hazard Classification

Harmful by ingestion, may cause respiratory irritation, skin, and eye irritation

Water Hazard Class

WGK 2 (Class 2: hazardous to water)

Flame Retardants

Incorporated into plastics, textiles, and coatings to enhance their fire-resistant properties. Acts as a synergist in Combination with halogenated flame retardants

Catalysts in Chemical Processes

Preferred in the manufacture of polyethylene terephthalate (PET), contributing to the production of bottles, containers, and fibers

Glass & Ceramics Manufacturing

Preferred in the production of certain types of glass and ceramics, improving their thermal and optical properties

Electronics & Semiconductor Manufacturing

Chosen in the production of semiconductors and other electronic devices where it serves as an additive for the enhancement of electronic components

Temperature

20–25°C (68–77°F)

Environment

Keep in a cool, dry place away from light and moisture

Protection

Use airtight containers to prevent contamination

Packaging

Packaged 50-kilogram HDPE bags

Detail 5

Each pallet is stretch-wrapped in polyethylene to ensure the bags remain secure during transit

Detail 6

Alternative package: 500-kilogram big bags

TDS

Download

MSDS

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COA

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Antimony Trioxide FAQs

Minimum Order Quantity

25 kg (pilot) · 1 MT (commercial)

Lead Time

3 – 5 weeks ex-works

Incoterms

FOB · CIF

Packaging

20 L pails, 200 L HDPE drums, 1000 L IBC

Regional Availability

India · EU · Middle East · Southeast Asia

Documentation

SDS · COA · TDS available on request

Compliance & Quality

REACH registered*

GHS/SDS available

ISO 9001:2015 site*

RoHS compliant*

Global sourcing network

Consistent quality & reliability

End-to-end technical support

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