Friday, 8 July 2011

Lead Nitrate - Pb(NO3)2 - chemically pure - 50 g

Chemical formula: Pb(NO3)2

Synonyms: nitrate of lead, saltpetre of lead

Amount: 50 g

Appearance and odour: white crystals without appreciable odour.

Grade: pure

Packaging: professional wide necked, white HDPE bottle with blue conical seal cap and tamper ring. Labeled. Bottle and cap are UN approved and reusable.

Description and uses: lead nitrate is probably the most used general purpose, highly water soluble lead compound and a precursor to most other lead salts and compounds.

This product is sufficiently pure to be used as a standard material.

Precipitate as lead carbonate using sodium carbonate and redissolve in relevant acid to obtain other salts of lead.

A solution of lead nitrate can be oxidised to lead (IV) oxide (PbO2) with NaOH and sodium hypochlorite (commercial bleach). Dissolving the freshly prepared PbO2 in ice cold concentrated HCl and decanting this solution into an ice cold saturated solution of ammonium chloride (NH4Cl) causes yellow ammonium hexachloroplumbate ((NH4)2PbCl6) to crystallise out. This is a member of a group of compounds derived from Group IV (a or b) metals in oxidation state +IV with general formula M2M'X6, where M is an alkali cation (or ammonium), M' is a metal from Group IV in oxidation state +IV and X is a halogen. The hexachloroplumbate coordination complex releases oily PbCl4 (lead tetrachloride) when treated with cold concentrated sulphuric acid.

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CAS: 10099-74-8

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