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Results tagged with alloy
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user 144414
For questions about alloys.
5
votes
What are metal zip tags and belt buckles made of?
Now coming to the tarnishing part, it is said to tarnish into a dark grey colour within a couple hours in contact with atmosphere due to the reaction between atmospheric oxygen and zinc present in the alloy … 2ZnO
[dark grey]
But based on the specific environmental conditions, there can be formation of zinc hydroxide (Zn(OH)2) and zinc carbonate (ZnCO3), which can contribute to the overall tarnishing of the alloy …
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