Antimony Trisulfide alias Antimony sulfide (Sb2S3) is an inorganic flame retardant synergist preferably used in halogenated polymer systems such as PVC and ABS needs. Antimony sulfide (Sb2S3) strengthens the thermal stability of plastics and reduces flammability by promoting char formation and slowing combustion. Also referred to as (Antimony vermilion, Antimony trisulfide, or Diantimony trisulfide) by Antimony Trisulfide manufacturers, it is supplied in technical grade for polymer additive applications. Stibnite is a mineral with formula of Sb3+2S2-3 or Sb2S3 and being a additive or catalyst, anti-blushing agent and heat stabiliser, and also as the flame-retardant synergist replacing antimony oxide. The IMA symbol is Sbn. We are the trusted Antimony suppliers worldwide, with reliable lead times and global supply capability.
Antimony Trisulfide alias Antimony sulfide (Sb2S3) is an inorganic flame retardant synergist preferably used in halogenated polymer systems such as PVC and ABS needs. Antimony sulfide (Sb2S3) strengthens the thermal stability of plastics and reduces flammability by promoting char formation and slowing combustion. Also referred to as (Antimony vermilion, Antimony trisulfide, or Diantimony trisulfide) by Antimony Trisulfide manufacturers, it is supplied in technical grade for polymer additive applications. Stibnite is a mineral with formula of Sb3+2S2-3 or Sb2S3 and being a additive or catalyst, anti-blushing agent and heat stabiliser, and also as the flame-retardant synergist replacing antimony oxide. The IMA symbol is Sbn. We are the trusted Antimony suppliers worldwide, with reliable lead times and global supply capability.
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Flame RetardantsMetallurgy Chemicals
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Synergists & Smoke Suppressants
Antimony derivatives
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Chemical Properties & Specifications
Enhances fire resistance in PVC, ABS, and other halogenated plastics.
Works with halogenated FRs to improve thermal stability and reduce smoke emission.
Ideal for wire & cable insulation, molded plastics, and thermoplastics.
Preferred in matches, fireworks, percussion caps, primers Provides fuel and enhances ignition sensitivity
Used as a decolorizer and opacifier in specialty glass
Used in enamels and glazes
Component of red pigments (antimony vermilion
Used in brake linings, clutches, friction pads for stability under heat
Infrared detectors, photoconductors, and as a semiconductor material
CAS No. : 1309-64-4
Category : Synergists & Smoke Suppressants
Sub-Category : Antimony-based synergists
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Category : Inorganic Chemicals
Sub-Category : Metal-Based Coagulants
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Category : Inorganic Chemicals
Sub-Category : Metal-Based Coagulants
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Category : Inorganic Chemicals
Sub-Category : Peroxides & Oxidizing Agents
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Category : Inorganic Chemicals
Sub-Category : Active Pharmaceutical Ingredients (APIs)
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Category : Pigments & Colorants
Sub-Category : Inorganic Pigments
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Category : Pigments & Colorants
Sub-Category : Inorganic Pigments
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Category : Pigments & Colorants
Sub-Category : Inorganic Pigments
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Category : Solvents & Carriers
Sub-Category : Ethers & Ether-Based Solvents
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Category : Specialty Polymers & Additives
Sub-Category : Corrosion Inhibitor Additives
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Category : Specialty Polymers & Additives
Sub-Category : Polyether Polyols
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Category : Inorganic Chemicals
Sub-Category : Alkalis & Bases
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Category : Base Chemicals & Intermediates
Sub-Category : Ketones & Solvents
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Category : Inorganic Chemicals
Sub-Category : Sulfur-Based Compounds
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Category : Inorganic Chemicals
Sub-Category : Phosphate Compounds
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Category : Inorganic Chemicals
Sub-Category : Acid Derivatives
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Category : Organic Intermediates
Sub-Category : Chlorinated Aromatic Compounds
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Category : Inorganic Chemicals
Sub-Category : Metal Halides
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Category : Inorganic Chemicals
Sub-Category : N/A
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Category : Inorganic Chemicals
Sub-Category : Metal Carboxylates
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Category : Surfactants
Sub-Category : Anionic (Ether sulfates)
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Category : Surfactants & Emulsifiers
Sub-Category : Fatty Amines
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Category : Inorganic Acids
Sub-Category : Mineral Acids
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Category : Organic Acid Derivatives
Sub-Category : Dicarboxylic Acids
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Category : Organic Intermediates
Sub-Category : Aromatic Sulfonates
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Category : Inorganic Chemicals
Sub-Category : Sulfur & Derivatives
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Category : Food Ingredients
Sub-Category : Flavor Enhancers
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Category : Inorganic Chemicals
Sub-Category : Sulfur-Based Compounds
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Category : Inorganic Chemicals
Sub-Category : Phosphate Compounds
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Category : Surfactants & Emulsifiers
Sub-Category : N/A
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Category : Nutraceutical Ingredients
Sub-Category : Amino Acids & Proteins
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Category : Food Ingredients
Sub-Category : Cocoa & Chocolate Derivatives
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Category : Food Ingredients
Sub-Category : Cocoa & Chocolate Derivatives
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Category : Food Ingredients
Sub-Category : Cocoa & Chocolate Derivatives
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Category : Food Ingredients
Sub-Category : Cocoa & Chocolate Derivatives
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Category : Fragrance Ingredients
Sub-Category : Ionones & Ketones
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Category : Fragrance Ingredients
Sub-Category : Aroma Compounds
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Category : Fragrance Ingredients
Sub-Category : Aliphatic Aromatic Ethers
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Category : Fragrance Ingredients
Sub-Category : Ketal Fruit Esters
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Category : Fragrance Ingredients
Sub-Category : Aroma Chemicals
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Category : Fragrance Ingredients
Sub-Category : Polycyclic Synthetic Musks
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Category : Fragrance Ingredients
Sub-Category : Polycyclic Synthetic Musks
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Category : Fragrance Ingredients
Sub-Category : Aromatic Esters