品名

乙酸铅; 铅糖; Lead Acetate; Lead diacetate; CAS：301-04-2

理化性质

无水物是白色晶体。分子式C4-H6-O4-Pb。化学式Pb(CH3COO)2。分子量325.28。相对密度3.25（20℃)。熔点280℃。20℃水中溶解度44.3 g/l; 溶于甘油; 微溶于醇。加热分解,放出铅烟。应注意不能与酸、许多盐类、某些有机物共存。

三水合物为无色晶体或白色颗粒或粉末(商品通常为棕色或灰色大块)。稍有乙酸气味。化学式Pb(CH3COO)2·3H2O。分子量379.34。相对密度2.55(20℃)。熔点75℃。在空气中缓慢风化; 从空气中吸收二氧化碳,并在表面上形成碳酸铅的薄层。应密封保存。易溶于甘油。1克溶于1.6ml冷水、0.5ml沸水、30ml乙醇。在75℃可失去结晶水; 加热至100℃开始放出乙酸,200℃以上时完全分解。

接触机会

纺织品印染、制药、制造铅盐的原料、铅电镀、防水漆、分析试剂、金冶炼等。

国内主要生产厂商:广西梧州市富民化工厂、湖北襄樊红卫化工厂

侵入途径

消化道与呼吸道。皮肤仅吸收微量。

毒理学简介

大鼠腹腔LD50: 130～150mg/kg。小鼠腹腔LD50: 120mg/kg。大鼠静脉LD50: 120mg/kg。狗经口LD50: 300mg/kg。

人经口LDLo: 714 mg/kg。静注（男性）TDLo: 71 mg/kg。

参见<铅及其化合物>。

临床表现

参见<铅及其化合物>。因易溶于水,容易吸收。症状与一般无机铅同。

美国HSDB引用文献：

*Lead acetate (sugar of lead) is of historical interest, because it was formerly applied in aqueous solutions to the eye for astringent effect, but induced opacities & lead encrustation of the cornea & conjunctiva, appearing as whitish chalky areas, assumed to be composed largely of lead carbonate. Such opacities occurred in patients when the corneal epithelium had been previously injured, allowing the lead solution to penetrate. The epithelium normally presents a barrier to penetration of lead salts into the cornea, but the epithelium may be injured in high concentrations. Lead encrustations could cause long lasting irritation. They sometimes extruded as a sequestrum, & sometimes became covered by the epithelium, & remained an obstruction to vision. [R47]

处理

参见<铅及其化合物>。

标准

车间空气卫生标准：参见<铅及其化合物>

中国职业病诊断国家标准：参见<铅及其化合物>

危规：GB6.1 类61853。UN NO.1616。IMDG CODE 6095-1页,6.1 类。

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