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Bismuth

CAS Number
7440-69-9
EC Number
231-177-4
Chemical Formula
Bi
Molecular Weight
208.98040 g/mol

Description

Bismuth (CAS 7440-69-9 ), abbreviated Bi, is a post-transition metal sourced and traded in elemental form for use across pharmaceutical synthesis, polymer manufacturing, and metallurgical processing. It functions as a low-toxicity alternative to lead and other heavy metals in applications where regulatory pressure or end-product safety requirements demand cleaner substitutes. In pharmaceuticals, elemental bismuth serves as a precursor to active bismuth salts and compounds used in gastrointestinal formulations and antimicrobial preparations. Polymer manufacturers incorporate it into flame-retardant systems where halogen-free compliance is required, particularly in wire, cable, and electronic component housings. Bismuth is also used as a catalyst or catalyst precursor in oxidation and condensation reactions within specialty chemical production for various industrial sectors. In metallurgy, it acts as a lead replacement in free-machining alloys and low-melting fusible alloys used in safety devices and precision casting applications. Bismuth is supplied as ingots, shots, granules, and high-purity pellets to suit different downstream processing requirements and specific manufacturing workflows. Standard commercial grades range from technical purity to high-purity material for pharmaceutical and electronic applications where particle size control is critical. Contact us for supply of Bismuth Request Quote

Other Names (Synonyms)

element 83 | 83Bi | Bismuth, elemental | Colitis | Wismut | Bismuth Metallicum | RefChem:388836 | BISMUTHUM METALLICUM | Bi

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point271 °C
Boiling Point1579 °C
Density9.78 g/cm³ @ Temp: 20 °C
AppearanceBismuth is a pinkish-silver, hard, brittle metal. It is found as the free metal in ores, such as bismutite and bismuthinite and in lead ores.
ColorSilver-white or red
Formshot
Water Solubilityinsoluble
Vapor Pressure<0.1 mm Hg ( 20 °C)

Safety & Handling

Danger
GHS08· Health Hazard

Hazard Statements

H370Causes damage to organs
H372Causes damage to organs through prolonged or repeated exposure

Precautionary Statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P319Get medical advice/attention if you feel unwell.
P321Specific treatment (see … on this label).
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P316Get emergency medical help immediately.

Trade & Regulatory

HS Code81060010
UN Number3264
ADR Class8
Packing GroupIII
Storage Class11 - Combustible Solids
WGK (Germany)1