Acid bathing brass

Reflux still design and discussion

Acid bathing brass

Postby Nathan02 » Thu Oct 05, 2017 11:21 am

Hi guys i am bathing my 1/4" brass needle output valve in citric acid 1 teaspoon in 500ml water. How long would be recommended. Cheers
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Re: Acid bathing brass

Postby Doubleuj » Thu Oct 05, 2017 11:46 am

You need to "pickle" brass in a solution of peroxide and water, I can't recall the ratio ATM though. Citric will only clean it, pickleing will remove any potential lead from the surface.
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Re: Acid bathing brass

Postby Aussiedownunder01 » Thu Oct 05, 2017 12:17 pm

"pickleing" brass isent the a all and b all it only lasts a while saying that most new brass is now almost lead free
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Re: Acid bathing brass

Postby Plumby » Thu Oct 05, 2017 12:27 pm

Almost lead free is like almost being rid of the clap, you still have it but its almost gone.
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Re: Acid bathing brass

Postby wynnum1 » Thu Oct 05, 2017 7:26 pm

How do you know that copper is lead free have scraped tons of copper pipe that had lead solder if that copper was reprocessed into pipe could have small amount of lead.
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Re: Acid bathing brass

Postby bluc » Thu Oct 05, 2017 7:52 pm

Pretty sure the smelting process removes all foreign traces..
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Re: Acid bathing brass

Postby P3T3rPan » Fri Oct 06, 2017 10:36 am

bluc wrote:Pretty sure the smelting process removes all foreign traces..

Yah they take a healthy foreshot :laughing-rolling:
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