How to test if conductor is copper or silver based


Hi all,

Was wondering if anyone knows of any low-cost or no-cost procedure for testing if a conductor is copper or silver. I bought some banana plugs for cheap but claimed to be made of "pure" copper or silver. I am just curious if the claim is valid.

Thanks in advance,

Kenobi
kenk168

Showing 1 response by amandarae

Easy!

1.)Get a bowl large enough for submerging a piece of each. Place each sample in the bowl.

2.) Pour vinegar(any kind) into the bowl.

3.) Wait three minutes.

4.) If one of the sample turns greenish, that's copper. If one turns whitish, that's silver.

5.) If both of them turns whitish or greenish, or no change in color at all, then, the vinegar is fake!

Just kidding!

Why don't you scrape an inner surface where it will not be visible (if it bother's you) and examine the shavings with a magnifying glass and the mark you made. Silver should not have any other color present except silver of course unlike copper shavings where it should be obvious with a magnifying glass. Just a suggestion only of course.

regards,