Why zinc button fly turned white.

Eternal 883 button fly cu

Chemical properties of zinc

Zinc is a fairly active element. It dissolves in both acids and alkalis. An alkali is a chemical with properties opposite those of an acid. Sodium hydroxide (“common lye”) and limewater are examples of alkalis. Zinc does not react with oxygen in dry air. In moist air, however, it reacts to form zinc carbonate. The zinc carbonate forms a thin white crust on the surface which prevents further reaction. Zinc burns in air with a bluish flame. Hope it’s a interesting knowledge for all denimheads.

The image above is my Eternal 883 in September 2014.

Read more: http://www.chemistryexplained.com/elements/T-Z/Zinc.html#ixzz3WnSU59qY

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