Tin Oxide (other)
Tin oxide may refer to: * Tin(II) oxide (stannous oxide), a black powder with the formula SnO * Tin(IV) oxide (tin dioxide, stannic oxide), a white powder with the formula SnO2 {{Short pages monitor ...
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Tin(II) Oxide
Tin(II) oxide (stannous oxide) is a compound with the formula SnO. It is composed of tin and oxygen where tin has the oxidation state of +2. There are two forms, a stable blue-black form and a metastable red form. Preparation and reactions Blue-black SnO can be produced by heating the tin(II) oxide hydrate, SnO·xH2O (x<1) precipitated when a tin(II) salt is reacted with an alkali hydroxide such as NaOH.Egon Wiberg, Arnold Frederick Holleman (2001) ''Inorganic Chemistry'', Elsevier
Metastable, red SnO can be prepared by gentle heating of the precipitate produced by the action of aqueous ammonia on a tin(II) salt.
SnO may be prepared as a pure substance in the laboratory, by controlled heating of tin(II) oxalate ( stannous oxalate) in the absence of air or under a CO₂ atmosphere. This method is ...
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