Antimony(III) oxide
- CAS Number
- 1309-64-4
- HSN Code
- 28258000
- Molecular Formula
- Sb2O3
- Catalogue Number
- AL0474
- Purity
- 98.5%
- Molecular Weight
- 291.50 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Antimony trioxide is a white crystalline solid. It is insoluble in water.
Also known as Antimony trioxide.
- Catalogue No.
- AL0474
- CAS Number
- 1309-64-4
- Molecular Formula
- Sb2O3
- Molecular Weight
- 291.50 g/mol
- HSN Code
- 28258000
- Grade
- 98.5%
- Product Form
- Substance
Melting point: 655 °C; Boiling point: 1425 °C; Density: Specific gravity: 5.67 (valentinite); 5.2 (senarmontite); Solubility: Slightly soluble in water.
- Appearance
- Colorless, cubic form (valentinite); colorless (senarmontite)
- Shelf Life
- -
- Packaging
- Available in: 500 gm plastic bottle
- Storage
- Separated from food and feedstuffs.
1.1 — Product identifier
- Chemical Name
- Antimony(III) oxide
- Catalogue No.
- AL0474
- Product form
- Substance
- CAS Number
- 1309-64-4
- EC Number
- 215-175-0
- Grade
- 98.5%
- EC Index Number
- 051-002-00-3
- Chemical Formula
- Sb2O3
- HSN Code
- 28258000
- Synonyms
- Antimony trioxide
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Flame retardant, synergist in plastics and textiles
- Uses advised against
- Not specified
1.3 — Details of the supplier of the safety data sheet
- Company identification
- Address:- 102, B wing, Savgan Heights, RTO Lane,Andheri (W), Mumbai-400 053Maharashtra, India.
1.4 — Emergency Contact Details
- Phone / e-Mail
- Phone : +91 22 26317055 Mobile : +91 9820385757 e-mail : info@alphachemika.co.in
2.1 — Classification of the substance or mixture
- Classification according to Regulation (EC) No 1272/2008
- Carc. 2
- Classification source
- ECHA C&L Inventory via PubChem CID 14794 - hazard classes notified by at least 50% of companies; pictograms and signal word derived from those statements
2.2 — Label elements
- Hazard pictograms
- Health Hazard
- Signal word
- Warning
- Hazard statements
- H351: Suspected of causing cancer
2.3 — Other hazards
- Other hazards
- Possible carcinogen; handle with care.
3.1 — Substance
- Name
- Antimony(III) oxide
- CAS No.
- 1309-64-4
4.1 — Description of first aid measures
- First-aid measures after inhalation
- Move to fresh air. If symptoms persist, seek medical attention.
- First-aid measures after skin contact
- IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water.
- First-aid measures after eye contact
- First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center.
- First-aid measures after ingestion
- Rinse mouth. Do not induce vomiting. Seek medical attention if symptoms occur.
4.2 — Most important symptoms and effects, both acute and delayed
- Symptoms relating to use
- Irritation of the respiratory tract, skin, and eyes.
4.3 — Indication of any immediate medical attention and special treatment needed
- General information
- Treat symptomatically. Show this safety data sheet to the treating physician.
5.1 — Extinguishing media
- Suitable extinguishing media
- Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide. Advice for firefighters: Wear self-contained breathing apparatus for firefighting if necessary.
- Unsuitable extinguishing media
- Not specified
5.2 — Special hazards arising from the substance or mixture
- Special procedures
- Non-flammable; however, may produce toxic fumes in a fire.
5.3 — Advice for firefighters
- Protection during firefighting
- Do not enter fire area without proper protective equipment, including respiratory protection.
6.1.1 — For non-emergency personnel
- Emergency procedures
- Avoid dust formation. Use appropriate protective equipment. Ensure adequate ventilation.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered sealable containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder.
6.4 — Reference to other sections
- Reference
- Not specified
7.1 — Precautions for safe handling
- Precautions for safe handling
- Handle with gloves and dust mask. Avoid creating dust.
- Hygiene measures
- Wash hands and other exposed areas with mild soap and water before eating, drinking or smoking and when leaving work.
7.2 — Conditions for safe storage, including any incompatibilities
- Storage conditions
- Separated from food and feedstuffs.
8.2 — Exposure controls
- Hand protection
- Protective gloves (e.g. nitrile rubber)
- Eye protection
- Chemical safety goggles or safety glasses
- Skin and body protection
- Wear suitable protective clothing
- Respiratory protection
- Use a dust mask or respirator if dust is generated.
9.1 — Information on basic physical and chemical properties
- Physical state
- Solid
- Colour
- White
- Odour
- Odorless
- Odour threshold
- Not applicable
- pH value
- Not applicable
- Relative evaporation rate (butylacetate=1)
- Not applicable
- Melting point
- 655 °C
- Freezing point
- Not applicable
- Boiling point
- 1425 °C
- Flash point
- Not applicable
- Auto-ignition temperature
- Not applicable
- Decomposition temperature
- Not applicable
- Flammability (solid, gas)
- Not flammable
- Vapour pressure
- 1 mm Hg at 574 °C
- Relative vapour density at 20°C
- Not applicable
- Density
- Specific gravity: 5.67 (valentinite); 5.2 (senarmontite)
- Solubility
- Slightly soluble in water
- Log Pow
- Not applicable
- Viscosity, kinematic
- Not applicable
- Viscosity, dynamic
- Not applicable
- Explosive properties
- Not explosive
- Oxidising properties
- Not oxidizing
- Explosive limits
- Not applicable
10.1 — Reactivity
- Reactivity
- Stable under normal conditions; incompatible with strong acids and bases.
10.2 — Chemical stability
- Chemical stability
- Stable under recommended storage conditions.
10.3 — Possibility of hazardous reactions
- Possibility of hazardous reactions
- Decomposes on heating. This produces toxic fumes. Reacts under certain circumstances with hydrogen.
10.4 — Conditions to avoid
- Conditions to avoid
- Avoid contact with incompatible materials and excessive heat.
10.5 — Incompatible materials
- Incompatible materials
- Strong acids and bases, strong oxidizers.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- Hazardous decomposition products formed under fire conditions. - Antimony oxide.
11.1 — Information on toxicological effects
- Acute toxicity
- LD50 Rat oral greater than 34,600 mg/kg; LD50 Rat oral >20 g/kg; LD50 Rabbit percutaneous greater than 2,000 mg/kg
- Skin corrosion/irritation
- Not classified (based on available data)
- Serious eye damage/irritation
- Not classified (based on available data)
- Respiratory or skin sensitisation
- Not classified (based on available data)
- Germ cell mutagenicity
- Not classified (based on available data)
- Carcinogenicity
- H351: Suspected of causing cancer
- Specific target organ toxicity (single exposure)
- Not classified (based on available data)
- Specific target organ toxicity (repeated exposure)
- Not classified (based on available data)
12.1 — Toxicity
- Toxicity information
- Not specified
12.2 — Persistence - degradability
- Persistence - degradability
- Not specified
12.3 — Bioaccumulative potential
- Bioaccumulative potential
- Not specified
12.4 — Mobility in soil
- Mobility in soil
- Not specified
12.6 — Other adverse effects
- Environmental precautions
- Not specified
13.1 — Waste treatment methods
- Additional Info
- Dispose of contents/container in accordance with local, regional, national and international regulations.
14.1 — UN number
- UN-No. (ADR)
- Not assigned
- UN-No. (IMDG)
- Not assigned
- UN-No. (IATA)
- Not assigned
- UN-No. (ADN)
- Not assigned
- UN-No. (RID)
- Not assigned
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Not classified as dangerous goods
- Proper Shipping Name (IMDG)
- Not classified as dangerous goods
- Proper Shipping Name (IATA)
- Not classified as dangerous goods
- Proper Shipping Name (ADN)
- Not classified as dangerous goods
- Proper Shipping Name (RID)
- Not classified as dangerous goods
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- Not applicable
14.4 — Packing group
- Packing group (ADR)
- Not applicable
- Packing group (IMDG)
- Not applicable
- Packing group (IATA)
- Not applicable
- Packing group (ADN)
- Not applicable
- Packing group (RID)
- Not applicable
14.5 — Environmental hazards
- Dangerous for the environment
- Not specified
- Marine pollutant
- Not specified
- Other information
- No supplementary information available
15.1 — Safety, health and environmental regulations/legislation specific for the substance or mixture
- 15.1.1 EU-Regulations
- Not specified
Used as a flame-retardant synergist in plastics, textiles, and coatings formulation research. It is also utilized in the production of glass and ceramics.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL00174
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 291.50 g/mol
| Test | Standard | Observed |
|---|---|---|
| Assay | 98.5% | 98.6% |
| Moisture content | <0.5% | 0.3% |
| Residue on ignition | <0.5% | 0.2% |
| Related substances | None detected | None detected |
| Solubility | Insoluble in water | Insoluble in water |
The above product is expected to comply with 98.5% grade specification.
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| 98.5% | 98.5% | m.p. 655 °C; b.p. 1425 °C | <0.5% | <0.5% | None detected | Slightly soluble in water |
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