Bismuth

Bismuth

CAS Number
7440-69-9
Molecular Formula
Bi
Metal based flame retardantAdditivePure Bismuth (≥99.99%)High-Purity Bismuth (≥99.999%)Commercial Grade Bismuth (≥99%)Bismuth Powder / Granules / Ingots

About Bismuth

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 ...

Bismuth Specifications

CAS Number
7440-69-9
Molecular Formula
Bi
IUPAC NameORBotanical Name
bismuth
Canonical SMILES
[Bi]
InChI Key
JCXGWMGPZLAOME-UHFFFAOYSA-N
InChI
InChI=1S/Bi
EINECS Number
231-177-4
MDL Number
MFCD00134033
UNSPSC Code
11101708
HSN No
8106.00.10
Atomic number
83
Atomic weight
208.98 g/mol
Appearance
Hard, brittle, crystalline metal with a pinkish tinge
Density
9.78 g/cm³
Melting point
271.4 °C
Boiling point
1564 °C
Electrical conductivity
Very low (poor conductor of electricity)
Solubility
Insoluble in water, soluble in nitric acid & hot sulfuric acid
Unique property
Expands upon solidification (similar to water)
Bi
≥99.99%
Pb
≤10 ppm
Fe
≤5 ppm
Cu
≤5 ppm
Ag
≤5 ppm
As
≤5 ppm
Other trace metals
≤20 ppm combined
GHS Hazard Statements
Not Classified. Reported as not meeting GHS hazard criteria
Precautionary
Bismuth metal is stable and non-hazardous, but bismuth compounds should be handled with gloves and safety precautions

Flame Retardancy

FR additive in halogenated and halogen-free polymers. High density and thermal stability enhance smoke suppression and fire resistance.

Pharmaceutical Industry

Bismuth compounds (e.g., bismuth subsalicylate) used in stomach ulcer and diarrhea medicines Low toxicity compared to lead, used as a safe substitute

Metallurgy & Alloys

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

Electronics & Semiconductors

Thermoelectric materials (Bi₂Te₃) for cooling and power generation Solder pastes for electronics

Pigments & Chemicals

Bismuth compounds used in non-toxic pigments (yellow, orange, red) Catalysts in organic synthesis and polymerization

Cosmetology

Bismuth oxychloride (BiOCl) used in pearlescent pigments for makeup

Nuclear Industry

Used as a coolant and as a carrier for uranium fuel in some reactors

Safe storage

Keep away from strong acids and oxidizing agents

Direction

Store in sealed containers to prevent contamination

Bismuth FAQs

Minimum Order Quantity

25 kg (pilot) · 1 MT (commercial)

Lead Time

3 – 5 weeks ex-works

Incoterms

FOB · CIF

Packaging

20 L pails, 200 L HDPE drums, 1000 L IBC

Regional Availability

India · EU · Middle East · Southeast Asia

Documentation

SDS · COA · TDS available on request

Compliance & Quality

REACH registered*

GHS/SDS available

ISO 9001:2015 site*

RoHS compliant*

Global sourcing network

Consistent quality & reliability

End-to-end technical support

Rounded Top

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