How to Test Gold With Vinegar

By Rachel Terry
How to Test Gold With Vinegar
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If you've ever wondered whether a gold piece is real gold or some other type of metal, you can find out without taking it to a jeweler or pawn shop. Using equipment and ingredients you already have, you can test the authenticity of gold with a very simple test conducted in your own kitchen.

Step 1

the gold piece, the clean wash cloth, any dust, dirt
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Rub the gold piece with the clean wash cloth to remove any dust, dirt or contaminants. If there is any stuck-on dirt or grease, get the wash cloth wet and scrub it off.

Step 2

the eye, dropper, two or three drops, vinegar
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Use the eye dropper to place two or three drops of vinegar onto the gold piece. If the piece is very small or doesn't lay flat, put the gold into a small bowl so the vinegar can stay in contact with it.

Step 3

any changes, the gold piece, Gold, a stable metal
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Observe any changes to the gold piece. Gold is a stable metal and does not react with oxygen corroding. Because it is stable, it will not change colors when exposed to vinegar. If the gold piece changes colors, it is not real gold. Gold plate will turn black when exposed to vinegar.

Step 4

the gold piece, cool water, it, a water bottle
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Run the gold piece under cool water or spray it with a water bottle to remove the vinegar.

Step 5

the gold piece, the clean cloth, it
Ignacio Lopez/Demand Media

Rub the gold piece with the clean cloth to dry it.

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