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'''Tin(II) oxide''', also known as '''stannous oxide''', is a [[chemical compound]]. Its chemical formula is SnO. It has [[tin]] and [[oxide]] [[ion]]s in it. It has tin in its +2 [[oxidation state]].
==Properties==
Tin(II) oxide is a blue-black solid. It is sometimes red, but this red form is more unstable. It burns in air to make [[tin(IV) oxide]], also known as tin dioxide.
==Preparation==
It can be made by reacting [[tin(II) sulfate]] with [[sodium hydroxide]]. The white hydrate that is made is heated to make the black oxide. The red form is more difficult to make.
[[Category:Chemical compounds]]
==Properties==
Tin(II) oxide is a blue-black solid. It is sometimes red, but this red form is more unstable. It burns in air to make [[tin(IV) oxide]], also known as tin dioxide.
==Preparation==
It can be made by reacting [[tin(II) sulfate]] with [[sodium hydroxide]]. The white hydrate that is made is heated to make the black oxide. The red form is more difficult to make.
[[Category:Chemical compounds]]