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Bismuth is a heavy metal produced as a flame retardant synergist in plastics, coatings, and polymer composites. Bismuth's high density and thermal stability make it deeply effective in reducing flammability and smoke generation in halogenated and halogen-free system environments. There are specific chemical properties as it Oxidizes slowly when heated, forming bismuth oxide (Bi₂O₃) and reacts with halogens (Cl₂, Br₂, I₂) to form bismuth halides. Also referred to as (Wismut, Bismuth Metallicum), it is supplied in technical grade for industrial flame retardant formulations along with other grades: pure bismuth, high-purity bismuth, commercial-grade bismuth and bismuth powder/granules/ingots. We are the trusted bismuth suppliers worldwide, with reliable lead times and global supply capability.
Bismuth is a heavy metal produced as a flame retardant synergist in plastics, coatings, and polymer composites. Bismuth's high density and thermal stability make it deeply effective in reducing flammability and smoke generation in halogenated and halogen-free system environments. There are specific chemical properties as it Oxidizes slowly when heated, forming bismuth oxide (Bi₂O₃) and reacts with halogens (Cl₂, Br₂, I₂) to form bismuth halides. Also referred to as (Wismut, Bismuth Metallicum), it is supplied in technical grade for industrial flame retardant formulations along with other grades: pure bismuth, high-purity bismuth, commercial-grade bismuth and bismuth powder/granules/ingots. W...
Chemical Properties & Specifications
Not Classified. Reported as not meeting GHS hazard criteria
Bismuth metal is stable and non-hazardous, but bismuth compounds should be handled with gloves and safety precautions
FR additive in halogenated and halogen-free polymers. High density and thermal stability enhance smoke suppression and fire resistance.
Bismuth compounds (e.g., bismuth subsalicylate) used in stomach ulcer and diarrhea medicines
Low toxicity compared to lead, used as a safe substitute
Preferred in low-melting alloys (fire-detection systems, sprinkler systems, safety devices)
Replaces lead in plumbing, ammunition, and solders (eco-friendly substitute)
Improves machinability of steels, aluminum, and copper alloys
Thermoelectric materials (Bi₂Te₃) for cooling and power generation
Solder pastes for electronics
Bismuth compounds used in non-toxic pigments (yellow, orange, red)
Catalysts in organic synthesis and polymerization
Bismuth oxychloride (BiOCl) used in pearlescent pigments for makeup
Used as a coolant and as a carrier for uranium fuel in some reactors
Keep away from strong acids and oxidizing agents
Store in sealed containers to prevent contamination
Bismuth is used as a metal-based flame retardant synergist in plastics, coatings, and polymer composites.
Halogenated and halogen-free thermoplastics, PVC, ABS, and polymer composites.
Technical grade, suitable for industrial flame retardant formulations and polymer compounding.
Enhances fire resistance, smoke suppression, and thermal stability in polymer systems.
Yes. Bismuth dissolves in concentrated nitric acid, forming bismuth nitrate [Bi(NO₃)₃] and Amphoteric behavior forming both acidic and basic salts.
