Antimonous oxide is a actinic admixture of antimony and oxygen. It consistently occurs in hydrated form, Sb2O5·nH2O. It contains antimony in the +5 blaze state.
The hydrated oxide is able by hydrolysis of antimony pentachloride; or by acidification of potassium hexahydroxoantimonate(V). It may aswell be able by blaze of Antimonous oxide with nitric acid.
It was found to be used as a blaze retardant in ABS and added plastics, a flocculant in the assembly of titanium dioxide and is sometimes acclimated in the assembly of glass, acrylic and adhesives.It is aswell acclimated as an ion-exchange adhesive for a amount of cations in acerb band-aid including Na+ (especially for their careful retentions); and as a polymerization and blaze catalyst.
The annual consumption of antimonous oxide in the United States and Europe is approximately 10,000 and 25,000 tonnes, respectively. The main application is as flame retardant synergist in combination with halogenated materials. The combination of the halides and the antimonous oxide being key to the flame-retardant action for polymers, helping to form less flammable chars. Such flame retardants are found in electrical apparatus, textiles, leather, and coatings.
Antimonous oxide is an opacifying agent for glasses, ceramics and enamels.
Some specialty pigments contain antimonous oxide.
Antimonous oxide is a useful catalyst in the production of polyethylene terephthalate (PET plastic) and the vulcanization of rubber.
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