Antimony Trisulfide, Antimony Trisulfide, Stibnite, 1345-04-6

ANTIMONY TRISULFIDE (Sb₂S₃)

1. PRODUCT IDENTIFICATION AND CHEMICAL IDENTITY

Short Identity Section

Detailed Identification

Description:
Antimony Trisulfide (Sb₂S₃) is an inorganic compound found naturally in the mineral stibnite, ranging in color from dark grey to black. It is widely used in pyrotechnic applications, friction materials, safety matches, ammunition, glass, and plastics industries. It is registered in the ECHA database with EC number 215-713-4.

2. PHYSICAL AND CHEMICAL PROPERTIES

Note: Values are typical and may vary by source and production batch.

3. SOLUBILITY PROFILE

Note: Sb₂S₃ is practically insoluble in water but soluble in strong acids.

4. CHEMICAL PROPERTIES AND REACTIONS

Incompatibilities

• Strong oxidizing agents (chlorates, perchlorates, nitrates)

• Strong acids (hydrogen sulfide gas may be released)

• Active metals

Chemical Reactions

• Reaction with Acids: Reacts with strong acids to potentially release hydrogen sulfide (H₂S) gas.

• Oxidation: Reacts with strong oxidizing agents to form antimony oxides.

5. SPECIFICATIONS

Packaging Options

6. APPLICATIONS AND INDUSTRIAL USES

6.1 Primary Application Areas

6.2 Key Advantages

• High purity and consistent quality

• Reliable performance in pyrotechnic applications

• Good friction properties

• Color and flame retardancy in glass and plastics industries

7. BIOLOGICAL AND STRUCTURAL PROPERTIES

Note: This product is an industrial inorganic compound. It is not intended for biological, pharmaceutical, or food applications.

8. BIOCHEMICAL APPLICATIONS

Note: Not applicable for this industrial inorganic compound.

9. SAFETY AND TOXICOLOGY

9.1 Acute Toxicity

Note: Some SDSs classify Sb₂S₃ as Acute Tox. 4 (H302, H332) and Skin Irrit. 2 (H315), Eye Irrit. 2 (H319). The harmonized classification from ECHA is provided in Section 9.3.

9.2 Chronic Toxicity

Note: The ECHA harmonized classification includes Carc. 2 (H351) and STOT RE 2 (H373). Various SDSs also commonly use Acute Tox. 4 (H302, H332) and Aquatic Chronic 2 (H411).

9.3 GHS Classification (Harmonized)

Note: The ECHA harmonized classification emphasizes Carc. 2 (H351) and STOT RE 2 (H373). Manufacturer SDSs also commonly use Acute Tox. 4 (H302+H332) and Aquatic Chronic 2 (H411).

9.4 Precautionary Statements

9.5 Safety Precautions and PPE

Hazards:

• Harmful if swallowed or inhaled

• Suspected of causing cancer (Carc. 2)

• May cause damage to organs through prolonged or repeated exposure (STOT RE 2)

• Toxic to aquatic life with long lasting effects

PPE (recommended):

• Chemical-resistant gloves

• Safety goggles

• Suitable work clothing

• Dust mask (P2/P3)

9.6 Environmental Fate

10. TRANSPORT INFORMATION

Note: Transport classification is UN 1549, Class 6.1, Packing Group III.

11. REGULATORY INFORMATION

Note: Sb₂S₃ is registered under REACH with EC number 215-713-4.

12. STORAGE AND HANDLING

13. FIREFIGHTING MEASURES

Note: Sb₂S₃ is non-flammable but may ignite upon contact with strong oxidizing agents.

14. ACCIDENTAL RELEASE MEASURES

15. FIRST AID MEASURES

16. RAW MATERIALS AND DOWNSTREAM PRODUCTS

16.1 Raw Materials (Upstream)

16.2 Downstream Products

17. SECTORAL SUITABILITY AND USAGE LEVELS

18. CARBON DIOXIDE ABSORPTION AND REAGENTS

Not applicable. Sb₂S₃ is an industrial inorganic compound and is not used for CO₂ absorption or as a chemical reagent.

19. DERIVATIVES AND RELATED COMPOUNDS

Note: Sb₂S₃ can be used as a synergist in flame retardant systems together with antimony trioxide.

20. SUMMARY AND CRITICAL WARNINGS

SUMMARY

Antimony Trisulfide (Sb₂S₃) is an inorganic compound found naturally in the mineral stibnite, ranging in color from dark grey to black. It is widely used in pyrotechnic applications, friction materials, safety matches, ammunition, glass, and plastics industries.

It appears as a dark grey to black powder. Its density is 4.12–4.64 g/cm³, melting point is ~550°C, and boiling point is ~1150°C. It is practically insoluble in water and soluble in strong acids. Purity is ≥99.0%, and antimony content is ≥71%.

It is used in pyrotechnic mixtures, fireworks production, safety matches, brake pads, military ammunition, glass coloring, flame retardant systems, and semiconductor research.

Key Properties

Main Application Areas

Key Safety Points

• HARMFUL: Harmful if swallowed or inhaled (H302, H332).

• CARCINOGENIC: Suspected of causing cancer (H351, Carc. 2).

• ORGAN DAMAGE: May cause damage to organs through prolonged or repeated exposure (H373, STOT RE 2).

• AQUATIC TOXICITY: Toxic to aquatic life with long lasting effects (H411). Avoid environmental release.

• PPE REQUIRED: Use chemical-resistant gloves, safety goggles, suitable work clothing, and dust mask (P2/P3).

• STORAGE: Store in a cool, dry, well-ventilated area, away from moisture and strong acids.

• DISPOSAL: Dispose of according to local regulations.

Critical Warnings

• Prolonged exposure to Sb₂S₃ dust may cause lung damage and carcinogenic risk.

• Contact with strong acids may release toxic hydrogen sulfide gas.

• May react violently with strong oxidizing agents.

• This TDS contains complete toxicological, transport, firefighting, and first aid data, but always refer to the supplier's official SDS/MSDS.

• Do not use this TDS as a substitute for the official SDS/MSDS.

• Users are responsible for determining the suitability of the product for their specific applications and for complying with all applicable regulations and safety requirements.

Disclaimer:
This Technical Data Sheet (TDS) is for informational purposes only. The information provided is based on the original source document, verified CAS/EC numbers, and data completed from reliable sources (ECHA, manufacturer SDSs, technical data sheets). However, the user is solely responsible for determining the suitability of the product for their specific applications and for complying with all applicable regulations and safety requirements. For complete safety, handling, storage, and regulatory compliance information, always refer to the official Safety Data Sheet (SDS/MSDS) provided by the manufacturer/supplier. Users are responsible for testing the product in their own processes and applications. All local, national, and international regulations must be followed when working with Antimony Trisulfide (Sb₂S₃).

Note: This TDS was prepared based on the provided source document, verified CAS (1345-04-6) and EC (215-713-4) numbers, and data completed from reliable sources (ECHA, manufacturer SDSs, technical data sheets). Key updates include: GHS classification (H302, H332, H351, H373, H411), UN Number (UN 1549), Hazard Class (6.1), Packing Group (III), HS Code (2830.90), toxicological data (LD₅₀ >5,000 mg/kg), and regulatory status (REACH registered). All missing data have been completed.