How to test sterling silver with acid

how to test sterling silver with acid

Sterling Silver or Silver Plated: 3 Simple Tests!

Jul 11,  · Depending on what acid you are using. If your using 9ct acid on sterling silver the result will be. If the acid burns milky white then it is on sterling, if it froths and bubbles green it is base metal or silver plate. If you are testing with silver acid, the acid will turn deep red for silver not as deep for lower grade and yellow brown for base metal. The acid reacts within seconds to the metals so you . Jan 14,  · This video shows the results of testing Sterling Silver Jewelry - one with a positive test and the other with a negative.

Happy Saturday from Snowy Chicago I acid test my sterling silver, scratch the block, apply the acid, it disappears, its not sterling. But now I heard of a test where you scratch the block, apply the acid and it turns a color like red or brown? Is this a different kind of acid? Is qith acid more reliable than the other? I've just never heard of this silvee color thing. Many thanks for any help. The metal disappearing is for gold testing.

The color change is the silver testing. See here: Acid Testing. Thanks for responding, Flipping. I'm still confused. Attached is a picture of an acid test I did recently. I'm using the acid marked "silver testing solution" from a kit I purchased here on ebay. Top test is for something confirmed sterling, buttom two are for items marked sterling, but not tested positive.

Am I using the wrong kind of acid? Top test is for something confirmed sterling, what kind of cat is hello kitty two are for items marked sterling, but not tested positive. The top one does kinda look ackd through the acid, aith that what I'm supposed to be looking at?

Yes, it is the color change on the scrapings you are looking for. The brown color change is hard now thats what i call music 12 song list see on a black stone.

I am able to pick up the green a lot easier. And very few pieces of jewelry are. Sometimes I get a little darker red, but just figure it witg a slightly higher than sterling. Generally when I test an item and it is silverplate the scrapings actually float in flakes to the top of the acid.

Thanks hod for the quick response. I was just cruising Youtube to look for videos about testing and the guy there scratches, drops the acid acic then zterling a second, wipes it with a clean tissue and goes by the color on the tissue. I just tested the items I tested before and the sterling piece tesy red, and the non-sterling piece was just the yellow color of the acid. Does this sound right? I've tried to determine the color through the acid, but not having much luck.

When I test with the 18k what prime numbers are factors of 84, the scratch underneath just disappears and the acid stays clear. Testing genuine sterling this way goes blue I learn so much on this board Like Lorraine and Cali, I use 18kt also.

By the way, they're making white test stones now for easier color indentification. Haven't tried one yet. Just a cautionary note about using the 18K acid test. I've done a lot of testing of known items, and I've had some silverplate items give a pretty strong positive result with the 18K acid, even with a pretty hard rub to get down to base metal. Same is true for hhow silver testing solution. When I'm not sure about something, I bring it to the guy I sell scrap to to test.

Recently I asked him to show me what he is doing to test for sterling. He uses 14K acid to test for sterling. He will rub the piece on a test stone, and then dip the rubbed spot in a drop of 14K acid. Then, if he sees bubbling or green color on the rubbed spot of the piece, it's not sterling. If no bubbling or green, then sterling. Turn on suggestions.

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Did you mean:. Acid testing sterling -- best acid testing method? Message 1 of All forum topics Previous Topic Next Topic. See here: Acid Testing Though the beauty may be in the butterfly, the struggle and growth occur in the cocoon.

Message 2 of JPG KB. Message 3 of Message 4 of In response to mayaphiliotis The results I look for are: Silver: Rub extra metal onto the stone, apply siilver nice drop and wait for a reaction. Though the beauty may be in the butterfly, the struggle and growth occur in the cocoon. Message 5 trst Ailver use the 18kt gold acid to test for sterling.

If it is sterling, the mark becomes a bright blueish white color. I sterlinng the gold test better because it anti masking detector what is easier for me to see, than the dark hhow for sterling. Message 6 of Message 7 of In response to prelorraine. Message 8 of The red silver solution goes bad very quickly. Message 9 acjd I'm not a hoarder! There's a price tag on everything!

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Silver Markings or “Hallmarks”

Oct 02,  · *****warning*****testing anything with acid is dangerous and you should use protective gear. acid can burn your skin leaving yellow dead spots always us. Silver can be tested with nitric acid, be careful as it involves using an acid which can burn the skin. in an inconspicuous place and apply a drop of nitric acid to the spot. If the spot turns a creamy colour it is high quality silver, usually sterling. If it turns black it is coin quality silver and if it turns green. For this test, you just put a drop of acid on your silver item. If the acid turns the wrong color then it's fake. If it turns the correct color then the silver is real. You will need to closely follow the instructions that came with your acid solution. You could also take a silver item and rub it against a testing stone. You would then put the acid on the stone. This works best for silver chains.

Last Updated: March 30, References Approved. To create this article, 26 people, some anonymous, worked to edit and improve it over time. There are 12 references cited in this article, which can be found at the bottom of the page. This article has been viewed 1,, times.

Learn more Perhaps you bought a piece of silver online from a dodgy site, or your friend gave you a piece she found. Maybe you just want to check out some family heirlooms that you're not totally sure are real. Whatever your reason, you'll need to know how to test your silver.

Silver is a versatile chemical element. Sterling silver is It is harder than pure silver. Pure silver is soft and often called "fine silver.

Scroll down to Step 1 to begin testing your silver. To test silver, look for a stamp with the numbers , , or If you don't see a stamp, this is a red flag that the silver is fake!

Next, touch a strong magnet, like a rare-earth magnet made out of neodymium, to the silver. Silver exhibits weak magnetic effects, so if the magnet sticks strongly to the piece, it's not real silver. You can also put a piece of ice on the metal. If the ice melts immediately, it's probably real silver.

Buy a silver acid test if you want to confirm the material is silver. If you want to learn how to use bleach to test for silver, keep reading the article! Did this summary help you? Yes No. Log in Social login does not work in incognito and private browsers.

Please log in with your username or email to continue. No account yet? Create an account. We use cookies to make wikiHow great. By using our site, you agree to our cookie policy. Cookie Settings. Learn why people trust wikiHow. Download Article Explore this Article methods. Tips and Warnings. Related Articles. Article Summary. Method 1 of All rights reserved. This image may not be used by other entities without the express written consent of wikiHow, Inc.

Look for a stamp. Items advertised as silver and sold internationally should be stamped based on its silver content. If there is no stamp, be leery. It may be still be pure silver, but created in a country that doesn't require stamping. Evaluate the international silver stamp rating.

Look at the silver piece with a magnifying glass. International sellers of silver will stamp silver as , or These numbers indicate the percentage of fine silver in the piece. A stamp of or means the piece is 90 percent or 80 percent silver, and is often called "coin" silver.

Method 2 of Test with a magnet. In particular, use a strong magnet, such as the rare-earth magnet made out of neodymium. Silver is paramagnetic and exhibits only weak magnetic effects. If your magnet sticks strongly to the piece, it has a ferromagnetic core and is not silver. It is better to perform the magnetic test in conjunction with another test to make sure the core is not another metal.

Try the sliding test. If you are testing silver bars, there is another way you can use a magnet to see if your silver is real or not. Angle one of your silver bars so that it is at a 45 degree angle. Slide the magnet down it.

The magnet should slide slowly down the face of the bar. This may seem counterintuitive, but silver is paramagnetic and the rare earth magnet induces electric eddy currents in the silver which act as an electromagnet to create a braking effect that slows the descent of the magnet.

Method 3 of Have some ice on hand. Keep it in the freezer until you need it for the test. While it might not seem like ice and silver go together, silver has the highest thermal conductivity of any common metal or alloy, though copper is right behind. Place your piece of ice directly on the silver. Do not take your eyes off of it. The ice will begin to melt immediately, as if it has been placed on something hot, rather than as if it it was placed on something that was just room temperature.

Method 4 of Try the ring test with any coin. Silver makes a really lovely bell-like ringing sound when it is tapped on, particularly when it is tapped on with another form of metal. If you want to try this out before tapping on your questionable silver, find a United States quarter made before The older quarter will give a high-pitched, clear ringing tone, while the newer quarters will give a dull thump of a sound.

Drop your own coin on a flat surface from about six inches above it. If it makes a sound like a bell ringing, you have a real silver coin in your hand. If it's dull, the silver is, most likely, mixed with other metals. Method 5 of Perform a chemical test analysis on the item. Use a chemical analysis if there's no stamp signifying it is silver on your piece.

Put on a pair of gloves. You will be using a corrosive acid to test the piece for purity. These sort of acids burn skin. Note that this method has the potential to slightly damage your silver item. If you suspect you have a high value item, you might be better off trying to determine the silver content using one of the other methods listed in this article.

Buy a silver acid test. You can purchase these online at sites like Amazon or eBay, or at jewelry stores. Silver acid tests are great for pure silver, but if you think your piece is silver plated, you will have to use a small jeweler's file to make a mark, revealing what might be under the plating. Find an inconspicuous place on the item in question and make a small scratch on the silver piece.

This is necessary to get to the underlying metal to test it with acid. Scratch the piece using a metal file. Scratch the surface enough so that you can get beyond any silver plating layer. These are generally provided with a silver testing kit, or will be sold in the same store.

Rub your silver on the surface of the black stone so that it leaves a thick and relatively large deposit on the stone. Aim for a line that is one to one-half inch thick. Apply a drop of acid to the scratched surface only. If the acid touches any area of the piece that isn't scratched, it will affect the polished look of the piece. If you chose to use a black stone, add a drop of the acid on the line that you created on your stone.

Analyze the scratched surface with the acid on it. You will have to analyze the color that appears as the acid sinks into the piece. Be sure to follow the instructions and color scale of your specific silver test. Method 6 of

5 thoughts on “How to test sterling silver with acid

  1. I really appreciate you taking the time to investigate and clarify that. Thank you for that info!

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