Tin(II) hydroxide

Tin(II) hydroxide
Names
IUPAC name
Tin(II) hydroxide
Other names
Stannous hydroxide
Identifiers
CAS Number
  • 12026-24-3 checkY
3D model (JSmol)
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ChemSpider
  • 19989070
ECHA InfoCard 100.031.542 Edit this at Wikidata
EC Number
  • 234-710-9
PubChem CID
  • 9793862
CompTox Dashboard (EPA)
  • DTXSID8042474 DTXSID101014203, DTXSID8042474 Edit this at Wikidata
InChI
  • InChI=1S/2H2O.Sn/h2*1H2;/q;;+2/p-2
    Key: FBGKGORFGWHADY-UHFFFAOYSA-L
  • [OH-].[OH-].[Sn+2]
Properties
Chemical formula
 Sn(OH)2
Molar mass 152.73 g/mol
Thermochemistry
Std molar
entropy (S⦵298)
 155 J·mol−1·K−1[1]
Std enthalpy of
formation (ΔfH⦵298)
 −561 kJ·mol−1[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
Chemical compound

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..[2] The structure of pure Sn(OH)2 is not known.[3]

Sn(OH)2 has been claimed to arise from the reaction of (CH3)3SnOH with SnCl2 in an aprotic solvent:[3]

2 Me3SnOH + SnCl2 → Sn(OH)2 + 2 Me3SnCl

No crystallographic characterization is available on this material.

Reactions

Stannous hydroxide is easily oxidized to stannic oxide (SnO2) by air.

References

  1. ^ a b Zumdahl, Steven S. (2009). Chemical Principles 6th Ed. Houghton Mifflin Company. p. A23. ISBN 978-0-618-94690-7.
  2. ^ R. A. Howie; W. Moser (1968). "Structure of Tin(II) "Hydroxide" and Lead(II) "Hydroxide". Nature. 219 (5152): 372–373. Bibcode:1968Natur.219..372H. doi:10.1038/219372a0. S2CID 45007541.
  3. ^ a b Holleman, Arnold Frederik; Wiberg, Egon (2001), Wiberg, Nils (ed.), Inorganic Chemistry, translated by Eagleson, Mary; Brewer, William, San Diego/Berlin: Academic Press/De Gruyter, ISBN 0-12-352651-5
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Tin compounds
Sn(II)
  • SnBr2
  • SnCl2
  • Sn(C5H5)2
  • SnF2
  • SnI2
  • SnC2O4
  • SnO
  • Sn(OH)2
  • C
    18    H
    36    SnO
    2
  • SnSO4
  • Sn(CH3COO)2
  • SnSe
  • SnTe
  • SnS
  • SnP3
Sn(IV)
  • SnBr4
  • SnCl4
  • SnF4
  • SnH4
  • SnI4
  • SnO2
  • SnS2
  • Sn(CH3COO)4
  • Sn(NO3)4
  • Sn(IO3)4
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Hydroxides
HOH He
LiOH Be(OH)2 B(OH)3 C(OH)4 N(OH)3
[NH4]+OH− 		O(OH)2 FOH Ne
NaOH Mg(OH)2 Al(OH)3 Si(OH)4 P(OH)3 S(OH)2 ClOH Ar
KOH Ca(OH)2 Sc(OH)3 Ti(OH)2
Ti(OH)3
Ti(OH)4 		V(OH)2
V(OH)3 		Cr(OH)2
Cr(OH)3 		Mn(OH)2 Fe(OH)2
Fe(OH)3 		Co(OH)2 Ni(OH)2 CuOH
Cu(OH)2 		Zn(OH)2 Ga(OH)3 Ge(OH)2 As(OH)3 Se BrOH Kr
RbOH Sr(OH)2 Y(OH)3 Zr(OH)4 Nb Mo Tc(OH)4 Ru Rh(OH)3 Pd AgOH Cd(OH)2 In(OH)3 Sn(OH)2
Sn(OH)4 		Sb(OH)3 Te(OH)6 IOH Xe
CsOH Ba(OH)2 * Lu(OH)3 Hf Ta W Re Os Ir Pt Au(OH)3 Hg(OH)2 TlOH
Tl(OH)3 		Pb(OH)2
Pb(OH)4 		Bi(OH)3 Po At Rn
FrOH Ra(OH)2 ** Lr Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og
 
* La(OH)3 Ce(OH)3
Ce(OH)4 		Pr(OH)3 Nd(OH)3 Pm(OH)3 Sm(OH)3 Eu(OH)2
Eu(OH)3 		Gd(OH)3 Tb(OH)3 Dy(OH)3 Ho(OH)3 Er(OH)3 Tm(OH)3 Yb(OH)3
** Ac(OH)3 Th(OH)4 Pa U(OH)2
U(OH)3
UO2(OH)2 		Np(OH)3
Np(OH)4
NpO2(OH)3 		Pu Am(OH)3 Cm(OH)3 Bk Cf Es Fm Md No
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