Preventing and Treating the Dezincification of Brass Canadian

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Brass turned pink. I just bought 120 years old brass door handles for my whole apartment, they had traces of white paint on them and I did a research (that came out problematic apparently) and found that I should put them in vinegar and water to make the paint soft and easier to remove. Because they cost so much and because I was skeptic, I.

Preventing and Treating the Dezincification of Brass Canadian

Hello: I found that brass gets that pink color when warm pickle and warm rinse is used. So I use pickle and rinse with water at ambient temperature. Brass also gets a nice yellow color when pickling with cromic acid. I have also cleaned that pink color with cyanide with good results (Never mix cyanide with ANY acid). Regards from Daniel Mischelejis

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Brass is a copper zinc alloy. Tarnished brass is oxide, Lemishine removes the copper and zinc oxides but doesn't remove any copper underneath. The pink bloom is just copper. The Lemishine dissolves the zinc on the surface, it doesn't penetrate further like ammonia or mercury. Posted: 3/8/2011 9:56:02 AM EST.

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quick explanation for pink brass and how to remedy. this is not a video about technique or a step by step instructional tutorial. it's a simple "this is why".

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The one I did took 2 and half hour inside the solution. 4. Removed and washed with water then dried with a clean rag (my T-shirt) 5. The brass will be very dull and might have small pink areas. 6. Clean with steel wool and it will remove the rest of the pink area. If not deep it again in the solution.

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Leave the mixture on for 10 minutes to work away the tarnish. Then, polish away until it's shiny, then wash it with regular soap and water. Take a paintbrush and apply a coat of polyurethane to the brass. Then, let it dry. Most brass fixtures will need at least two hours to dry.

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Duplex brass is even more prone to dezincification than alpha brass (Scott 2002). The first sign of dezincification of brass is a change in colour, from the yellow typically found in brass to the salmon pink of pure copper metal. The pink colour may then turn reddish and then brown if the surface copper corrodes to form cuprite.

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SOLUTION - Etch the Copper Off with SUPER PICKLE: In a small plastic container, mix equal parts of: warm pickle solution (scoop a little bit out of your pickle pot*) hydrogen peroxide (regular ol' 3% stuff from the drug store) I used about 1/8 cup of each.

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Step 6. Place the brass item in an airtight plastic bag with an old cloth soaked in ammonia. Leave this until the desired color is reached and take it out and rinse it well with warm water. Ammonia fumes will give brass a greenish-brown color, but don't let ammonia touch the brass as this will cause spotting. New brass is a very shiny metal.

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Lemi Shine has been questioned as a cleaning agent for brass because, in some circumstances, it seems to turn the brass pink. But is it? The issue is whether or not the Lemi Shine is damaging or somehow making the brass less suitable for use with ammunition. That is, has the brass been weakened, become brittle or suffered some other change that.

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After 2 or 3 hours of cleaning (I did let the sonic cleaner rest every 30 minutes), a few brass that sat next next to the bronze brush turned pink/red. After drying the brass with the Hornady case dryer the pink color turned darker (like shown in the picture). The bronze brass also turned pink just like the brass did.

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Posted: 7/2/2015 10:55:45 PM EDT. Just getting into reloading and wanted to clean some deprimed brass. Used a Sonicor cleaner with the following mix: 32 oz hot water. 8 oz vinegar. sm squirt of dawn. Ran for 18 min. Of the 100 pieces about 85 came out clean but 15 turned pink color. Did a rinse after the wash.

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This chandelier could be solid brass, in which case you can carry on and read Goran's advice about turning brass back to standard color instead of pink. But it might be just brass plated, in which case the plating may be worn away (a magnet won't prove it's solid brass rather than brass plated zinc; but if it's magnetic, it's steel or cast iron.

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Mix together in a plastic or glass container, gently lower your piece, and wait a minute or two. (Use copper, wood, bamboo, or plastic tongs to remove). The pink will disappear. Leave the Super Pickle out overnight (protect children and pets by putting it somewhere that they can't access).

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Brass can turn pink due to a process called "dezincification," where the zinc present in the brass alloy is gradually removed, leaving behind a copper-rich layer. This copper layer, when exposed to atmospheric conditions and humidity, can then develop a pinkish hue due to the formation of copper carbonate or copper oxide on the surface. This phenomenon is more commonly seen in older brass.