为了避免青铜器生成铜绿,以下方法正确的是 A.将青铜器放在银质托

为了避免青铜器生成铜绿,以下方法正确的是

A.将青铜器放在银质托盘上

B.将青铜器放置在露天的环境中

C.将青铜器保存在潮湿的空气中

D.在青铜器的表面覆盖一层防渗的高分子膜

答案

D 


解析:

铜比银活泼,将青铜器放在银质托盘上,形成原电池时铜作负极而被腐蚀,A项不正确;将其放置在露天的环境中或潮湿的环境中,都可与空气中的水分和CO2等物质接触,易发生腐蚀,B项、C项不正确;在青铜器的表面覆盖一层防渗的高分子膜能隔绝铜与介质的接触,可以达到防腐作用,D项正确。故答案为B项和D项。

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