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14k or higher gold will not notably react at all when exposed to nitric acid. Green reaction means low karat, and brown means 8-10k. You can also weigh the flakes and then do the regia method. After melting down the power or before, you can weigh it and take note of the difference. Then do math to determine what purity you had.

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Q: Can you test gold flake with acid?
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Related questions

What acid do you use for the acid test?

what acid do you use to test gold


What acid do you use for acide test?

what acid do you use to test gold


How do you test white gold?

acid test and magnet test.


How can you test gold to see if its real?

acid test


What is the test for gold?

Nitric acid


Which acid you need to use for gold test hydrochloric acid and sulfuric acid?

nitric acid


Which one is good gold flake or classic milds?

no doubt classic milds ,gold flake is also good bt as comprasion to classic milds gold flake is no way near classic milds....coz its so smooth and not harm as gold flake.......


What chemical is used to test gold?

Aqua regia , a mixture of one part nitric acid and three parts hydrochloric acid.


Different ways to test gold at home?

ACID


What color does gold turn when in contact with acid?

I'll assume you are asking about test acid. The test acid in gold test kits is nitric acid diluted to various strengths for use on different karat gold varieties. Here are a few scenarios to answer your question.Let's say you have a 14K gold ring. If you drip 14K acid on it, nothing will happen. If you drip 18K acid (or stronger) on it, the spot where the acid contacted it will turn brown. On the other hand, if the acid bubbles green, the ring is not actually gold at all.


How long do you leave your gold in a jar of honey to test if it is gold?

Honey is not a reliable way to test gold. Most people use the scratch test and the acid test based on karats.


How much does one flake of gold cost?

That depends on the purity and weight of the flake.