Bohr Materials

Antimony Chloride (SbCl3) Hazardous

A classical mordant and Lewis acid that found a second life in thin films, as the interface layer on an antimony sulfide absorber.

Specifications

ProductAntimony Chloride (SbCl3)
SynonymsAntimony(III) Chloride; Antimony Trichloride
CAS number10025-91-9
FormulaSbCl3
Molecular weight228.11 g/mol
Grade99.99% (trace metals basis)
DocumentationProducer certificate of analysis per lot

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Applications

SbCl3 has a long industrial record as a Lewis acid and polymerization catalyst, as a mordant for cloth and patent leather, and as a route to other antimony salts and to flame-retardant treatments for textiles and plastics. In photovoltaics it has been reported as an SbCl3 interface layer that passivates the surface of solution-processed Sb2S3 planar thin-film solar cells. It fumes in air and is decomposed by water to hydrochloric acid and antimony oxychloride.

  • Lewis acid and polymerization catalyst in organic synthesis
  • Interface layer passivating Sb2S3 thin-film solar cells
  • Route to other antimony salts and flame-retardant treatments