How to distinguish between yellow copper wire and purple copper wire?
Copper is copper also known as copper, because of its color is purple red and named. Relative density 8.96.
Hello, brass is an alloy made of copper and zinc. The surface is golden with a density of about 8.50-8.80*10^3kg/m^3
From the density point of view, you can take samples of the same size to measure their quality. Generally speaking, copper is heavier. The easiest way is to look at the color.
