Wednesday, December 28, 2011

Lead (II) iodide (Plumbous iodide)

Lead (II) iodide is a toxic, yellowish solidness. Molecular formula: PbI2. It presentations a crop of colourizes with varying temperature from bright lily-livered at elbow room temperature to brick red. Molecular Weight: 461.01 g/mol. On cooling, its color returns to yellow. In its crystallized descriptor it equals put-upon since a detector substantial for high energy photons including X-ray picture and da Gamma rays.
Lead iodide is deadly referable its confidential information capacity. Fashionable the nineteenth century it was used as an artists' pigment subordinate the constitute Iodine Yellow, but it was too unstable to embody utilitarian.
It is sparingly soluble in cold water but quite soluble in hot water, yielding a colorless solution; on cooling it crystallizes as yellow hexagonal platelets.
Lead (II) iodide is also called Plumbous iodide.
Most iodide salts are soluble in water, but often less so than the related chlorides and bromides. Iodide, costing declamatory, is less hydrophilic than are the smaller anions. One consequence of this is that sodium iodide is extremely resolvable incoming acetone, whereas sodium chloride embodies not. The depleted solubility of atomic number 47 iodide and lead iodide ponders the covalent fictional character of these aluminous iodides.

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