Is formation of green film of nasic carbonate a type of corrosion?
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Answer:
Yes, formation of green powdered colour on copper articles is one of the corrosion of copper articles.
Explanation:
As we know that in the old copper articles, there are some green powdered colour present in the articles of copper due to the formation of the basic copper carbonate. The basic copper carbonate is formed due to the reaction between copper articles with moisture and carbon dioxide. The chemical formula of basic copper carbonate is CuCO3 • Cu(OH)2. It is basic in nature because it contains more amount of copper hydroxide. This basic copper carbonate is toxic. As we know that during, it releases harmful substances which is toxic in nature.
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