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Tin(II) hydroxide

Tin(II) hydroxide, Sn(OH)2, also known as stannous hydroxide, is an inorganic compound tin(II). The only related material for which definitive information is available is the oxy hydroxide Sn6O4(OH)4, but other related materials are claimed. They are all white solids that are insoluble in water.

Preparation and structure

Crystals of Sn6O4(OH)4 has been characterized by X-ray diffraction. This cluster is obtained from solution of basic solutions of tin(II). The compound consists of an octahedron of Sn centers, each face of which is capped by an oxide or a hydroxide. The structure is reminiscent of the Mo6S8 subunit of the Chevrel phases.. The structure of pure Sn(OH)2 is not known.

Sn(OH)2 has been claimed to arise from the reaction of (CH3)3SnOH with SnCl2 in an aprotic solvent: :2 Me3SnOH + SnCl2 → Sn(OH)2 + 2 Me3SnCl No crystallographic characterization is available on this material.

Reactions

Stannous hydroxide adds additional hydroxide ligands to form stannites. Air easily oxidizes stannous hydroxide to stannic oxide (SnO2).

References

References

  1. Zumdahl, Steven S.. (2009). "Chemical Principles 6th Ed.". Houghton Mifflin Company.
  2. (1968). "Structure of Tin(II) "Hydroxide" and Lead(II) "Hydroxide". Nature.
  3. {{Holleman&Wiberg
  4. {{cite encyclopedia. R.. Scholder. (1965). Academic Press / Scripta Technica
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hydroxides tin(ii)-compounds reducing-agents
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