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Lead(II) hydroxide

| NFPA-H = 2 | NFPA-F = 0 | NFPA-R = 0 | NFPA-S =

Lead(II) hydroxide is an inorganic compound with the formula . The material has not been isolated but its existence has been inferred as an ill-defined component of solutions of Pb(II). Instead it forms oxides and oxy-hydroxides.

Preparation

Addition of hydroxide to a solution of a lead(II) salt, a hydrated lead oxide (with x

Reactions

In aqueous solution, lead(II) hydroxide is a somewhat weak base, forming lead(II) ion, , under weakly acidic conditions. This cation hydrolyzes and, under progressively increasing alkaline conditions, it becomes somewhat weak acid, and it forms , (aqueous), , and other species, including several polynuclear species, e.g., , , . Upon heating to decomposition temperatures, it forms lead oxide (PbO) in the yellow form, litharge.

History

The name lead hydrate has sometimes been used in the past but it is unclear whether this refers to or . In 1964 it was believed that such a simple compound did not exist, as lead basic carbonate () or lead(II) oxide (PbO) was encountered where lead hydroxide was expected. This has been a subject of considerable confusion in the past. However, subsequent research has demonstrated that lead(II) hydroxide does indeed exist as one of a series of lead hydroxides.

References

References

  1. Handbook of Chemistry and Physics, 1st edition, 2000, CRC Press {{ISBN. 0-8493-0740-6
  2. (1996). "Internal Corrosion of Water Distribution Systems". [[American Water Works Association]].
  3. "Lead does not appear to form a simple hydroxide, Pb(OH)2," however.{{Greenwood&Earnshaw2nd
  4. Von Egon Wiberg, Nils Wiberg, Arnold Frederick Holleman, "Inorganic Chemistry", Academic Press, 2001 [https://books.google.com/books?id=Mtth5g59dEIC&dq=%22lead%28II%29+hydroxide%22&pg=PA916 (Google books)].
  5. (1968). "Structure of Tin(II) "Hydroxide" and Lead(II) "Hydroxide". Nature.
  6. "Process of treating lead hydrate produced by electrolysis".
  7. "Process of manufacturing white lead".
  8. G. Todd and E. Parry. (1964). "Character of Lead Hydroxide and Basic Lead Carbonate". [[Nature (journal).
  9. W. Nimal Perera, Glenn Hefter, and Pal M. Sipos. (2001). "An Investigation of the Lead(II)−Hydroxide System". Inorganic Chemistry.
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hydroxides lead(ii)-compounds
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