炭酸水酸化鉛(亜炭酸鉛)

解説炭酸鉛の塩基性塩。無色の結晶。水には溶けない。水道用鉛管では表面にこの緻密な皮膜が生じ、内部を保護する。工業上は鉛白といい，古来白色顔料として用いられているが有害である。化学式2PbCO3・Pb（OH）2小学館 デジタル大辞泉について 情報 | 凡例

用途陶磁器、ほうろうの釉薬、塗料、塩ビ安定剤、顔料、ゴム

用途塗料、絵具、( 塩化ビニル) 安定剤

使用Lead(II) carbonate basic can be used as pigment in oil paints and water colors; in cements; for making putty and lead carbonate paper; in the processing of parchment.

製造方法Many commercial processes have been developed for manufacturing basic lead carbonate. These include: Thomson-Stewart process, Carter process, and Dutch process. The method of preparation involves treating lead with acetic acid vapors in the presence of carbon dioxide at 60°C. In the Thomson-Stewart process, finely divided lead monoxide or lead metal is mixed with water to give aqueous slurry, which is then mixed with acetic acid in the presence of air and carbon dioxide. All these processes are slow, taking weeks to obtain products of desired composition. Basic lead carbonate also is precipitated by dissolving lead monoxide in lead(II) acetate solution, and treating the solution with carbon dioxide. It also is produced by electrolysis of sodium nitrate or sodium acetate using lead anode and then precipitating out the product by adding sodium carbonate..

Basic Lead Carbonate is produced by several methods, in which soluble lead acetate is treated with carbon dioxide. For example, in the Thompson-Stewart process, an aqueous slurry of finely divided lead metal or monoxide, or a mixture of both, is treated with acetic acid in the presence of air and carbon dioxide. High quality, very fine particle-size basic lead carbonate is produced, ranging in carbonate content from 62 to 65% (vs 68.9% PbCO3, theoretical).