Tin (II) oxide’s reducing agent and catalyst properties make it ideal for use in a wide range of applications, including catalysts, life sciences, pigments, plating and process chemicals. It is also used as a colourant in the glass industry to make ruby glass.

Tin (II) oxide is a black, crystalline powder that is used as a source of Sn2+ ions in solid state description reactions to produce complex oxides, or in reactions with weak acids to manufacture stannous compounds.

Chemical name Tin (II) Oxide
Tin Monoxide
Black Tin Oxide
Chemical formula SnO
Molecular weight 134.7 C.A.S. number 21651-19-4


William Blythe’s tin (II) oxide is ideal for use in applications such as:

Chemical Catalysts

  • Catalyst for the esterification of oleochemicals, for example in the manufacture of plasticisers, lubricants, cosmetics and surfactants.

Life Science Reagents

  • Raw material for the manufacture of anti-caries additives used in for example toothpaste.

Pigment Precursors

  • Key component in complex inorganic oxide pigments, for example zinc tin oxide pigments.

Plating Materials

  • Raw material for the manufacture of tin methane sulphonate for use in electroplating.
  • Source of tin for replenishing electroplating baths based on tin methane sulphonate.

Process Chemicals

  • An acid soluble raw material for the manufacture of tin salts of organic and inorganic solids

Product forms

William Blythe’s tin monoxide is available as a black powder.

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