Lead(II) iodide
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Lead (II) iodide (PbI2) is a toxic, yellowish solid. In its crystalline form it is used as a detector material for high energy photons including x-rays and gamma rays. It is also known as plumbous iodide. The CAS registry number is []. Molecular weight 461.05 g.mol-1.
Lead iodide is toxic due to its lead content.
In the nineteenth century it was used as an artists' pigment under the name Iodine Yellow, but it was too unstable to be useful.[1]
Lead iodide is formed via precipitation by mixing lead (II) nitrate and potassium iodide:
Pb(NO3)2 (aq) + 2KI (aq) → PbI2 (s) + 2KNO3 (aq)
[edit] References
- ^ Salter, Thomas W., Field’s Chromatography: or Treatise on Colours and Pigments as Used by Artists By George Field. An entirely new and practical edition revised, rewritten and brought down to the present time, 1869
[edit] External links
- Case Studies in Environmental Medicine (CSEM): Lead Toxicity
- ToxFAQs™: Lead
- National Pollutant Inventory - Lead and Lead Compounds Fact Sheet
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