How to identify brass

Brass identification:

1, put brass into a container containing dilute hydrochloric acid (or dilute sulfuric acid), the surface of the bubble is brass.

2, put brass into a container containing ferrous sulfate solution, over a period of time, so that the color of the reagent changes, is brass.

3, add silver nitrate solution, become silver white is brass.

4, burn, burn brass brass will become red.

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