Lead Chloride Precipitation

概要

Lead nitrate reacts with sodium chloride to form a white precipitate of lead chloride (Ksp = 1.7 × 10⁻⁵). PbCl₂ is moderately insoluble at room temperature but becomes quite soluble in hot water, distinguishing it from AgCl. The precipitate consists of fine needle-like crystals.

参加者

日常の例

In qualitative analysis, PbCl₂ is separated from AgCl and Hg₂Cl₂ by dissolving it in hot water, a key step in Group I cation analysis.

産業上の重要性

塩化鉛の沈殿は鉛リサイクルプロセスと鉛汚染物質管理において重要である。溶解度の温度依存性が他の塩化物との分離に利用される。