What are the applications of chemical materials in life?
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- Time of issue:2020-02-14 15:01
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What are the applications of chemical materials in life?
(Summary description)Bronze will "rust" when left in the air for a long time. Copper will be oxidized into black copper oxide in humid air. The copper oxide on the surface of the copperware will continue to interact with carbon dioxide in the air to produce a layer of green basic copper carbonate CuCO3 • Cu (OH) 2
- Categories:Q & A
- Author:
- Origin:
- Time of issue:2020-02-14 15:01
- Views:
Bronze will "rust" when left in the air for a long time. Copper will be oxidized into black copper oxide in humid air. The copper oxide on the surface of the copperware will continue to interact with carbon dioxide in the air to produce a layer of green basic copper carbonate CuCO3 • Cu (OH) 2
In addition, copper also reacts with hydrogen sulfide in the air to produce black copper sulfide. Scrub the surface of the dark brass with cotton dipped in concentrated ammonia and it will immediately shine. Because the surface of the copperware is scrubbed with concentrated ammonia water, copper oxide, basic copper carbonate and copper sulfide will be converted into soluble copper ammonia complexes and removed.
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