常识“砒染铜”是什么意思，起源、典故、生平简介及释义-历史文化

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常识	砒染铜
释义	砒染铜一种青铜表面砷化处理工艺。发明时间不详。明宋应星《天工开物》：砒（砷的俗称）“染铜需用能几何哉？”作法可能是用雌黄（As₂S₃）、雄黄（AsS）薰染青铜器表面，使之形成高砷或低砷的表层，前者为银白色，后者金黄色。
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