Antimony(III) Sulfide Inorganic Pigment Firework Chemical Raw Material Powder

Antimony Trisulfide (Antimony(III) Sulfide, CAS:1345‑04‑6, molecular formula is an inorganic antimony sulfide, produced by purification, crushing and screening of natural stibnite ore or synthetic chemical synthesis process. It appears as grayish-black or dark gray fine powder, odorless, insoluble in water and most organic solvents, soluble in concentrated hydrochloric acid. It has stable chemical properties under normal temperature, good combustion supporting performance and excellent synergistic flame retardant effect. Widely applied in pyrotechnics, rubber vulcanization, glass industry, flame retardant additives and fine chemical fields, complying with industrial inorganic sulfide standards. Our production strictly controls particle size, heavy metals and impurity indicators with stable batch quality.

Applications
Pyrotechnic & Match Industry (Core Consumption Field)
It is classic fuel and combustion regulator for fireworks, flash powder, fountain pyrotechnics and signal flares. It can lower ignition temperature, stabilize combustion speed, improve flame brightness and spark effect. It is also core raw material for safety match ignition agent, widely used in civilian fireworks and military signal formulations.
Rubber & Tire Industry
Serves as vulcanization activator and flame retardant synergist for rubber products. It accelerates vulcanization reaction, improves crosslinking uniformity of rubber; enhances thermal stability and flame resistance of rubber composites, applied in rubber hoses, sealing parts and tire formulations.
Glass & Ceramic Industry
Used as colorant and clarifier for ruby glass, colored art glass. It endows glass with reddish color tone; also used as auxiliary raw material for ceramic glaze to adjust glaze surface luster and color rendering performance.
Plastic & Flame Retardant System
Synergistic flame retardant for halogen-containing polymers such as PVC, ABS, replacing partial antimony trioxide. It promotes compact carbon layer formation during combustion, suppresses flame spread, reduces smoke density, suitable for wire and cable, plastic profiles.
Fine Chemical and Other Fields
Raw material for manufacturing other antimony compounds; used as analytical reagent; raw material for metallurgical antimony smelting; also applied in friction material formulations.

Product Advantages
✅ Stable particle size distribution, good flowability, easy uniform mixing with oxidants, sulfur powder and other raw materials in pyrotechnic formulas, consistent combustion performance batch by batch.
✅ Strict control of harmful heavy metal impurities, low volatile impurities, avoid abnormal deflagration risk in pyrotechnic formulations.
✅ Good compatibility with various vulcanizing agents, flame retardants and inorganic fillers, flexible formula collocation.
✅ Complete COA, MSDS and export documents available for customs clearance of various countries.
✅ Sufficient spot supply, support sample testing and full-container long-term orders with flexible delivery arrangement.

Packaging & Storage
Standard package: 25kg woven bag lined with PE inner bag; ton jumbo bag available for bulk orders.
Store in cool, dry and ventilated warehouse, keep bags tightly sealed. Keep far away from strong oxidants, chlorate, nitrates, acid materials and combustible substances. Avoid direct sunlight, high temperature and rain soaking during transportation. Prevent dust flying and package damage. Shelf life: 24 months under sealed dry storage condition.
Safety Information
Toxic inorganic antimony compound. Inhalation of dust irritates respiratory tract; long-term repeated exposure may cause damage to organs; skin and eye contact lead to irritation. When handling, wear dust-proof respirator, chemical resistant gloves and safety goggles, avoid dust inhalation. Do not eat, drink or smoke during operation. Complete MSDS including leakage disposal and first-aid guidance will be provided with each shipment.

1. 1.A 70,000 ㎡ warehouse (20,000 MT capacity) with moisture-proof and temperature-controlled systems, enabling efficient fulfillment of large-volume orders.
2. 2.Free samples (Ship within 3-7 days) to let you test products at zero trial cost.
3. 3.Transparent lead time for hazardous chemicals: 45–60 days, with clear delivery schedules.
4. 4.Certified with a Hazardous Chemical Business License and ISO certification, ensuring smooth customs clearance.
5. 5.6 packaging options with customizable logos to minimize product loss during transportation.
6. 6.Over 400 chemical SKUs available for one-stop procurement, helping you reduce sourcing costs.