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Old 12-11-2007, 06:03 PM
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chemical reaction ?

does anyone know if muriatic acid has any negative affect when introduced to copper? im looking to clean the deposits in my radiator it will be some time b 4 i need to install it so im trying to come up with a home brew to clean it possibly a diluted acid mixture ? any input anyone ????

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Old 12-11-2007, 06:39 PM
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Old 12-13-2007, 07:36 AM
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Copper will be attacked by any acid..... as I recall.

I'm not so sure the types of materials muriatic acid is known to treat (calcium, glass, cleaning stone work, etc.) are actually found in radiators.

Call a radiator shop and ask what they us they boil out radiators and ask how much to boil yours.

The Solution to Pollution is Dilution. Weaker acidic solutions are easier to work with and to dispose of. Oops. I guess I ended that sentence with a preposition.
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Old 12-13-2007, 10:35 AM
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I would not use anything as strong as Muriatic acid (the old traditional name for what is now known as HYDROCHLORIC acid ) in any solution because any amount left would have to be neutralized. We used Sodium Hydroxide (caustic lye) to boil out radiators and gas/fuel tanks but there are solutions available for cleaning radiators at most auto parts. Back at the mines it was common to clean bulldozer, and other equipment, radiators with dry automatic dishwasher detergent such as Cascade which seemed to work quite well with no damage however you must consider these are heavy duty radiators to say the least.
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Old 12-13-2007, 11:21 AM
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If I'm not mistaken, most commercial radiator cleaners are a weak caustic solution and used to clean oily deposits from whatever got in there from lousy water to combustion by-products introduced by leaky head gaskets (seldom any more with the new gasket technologies). The problem with using those chemicals is that they could possibly attack the copper radiator construction. Aluminum is even worse. My advice - don't. If you do feel that you have to tho, do it just before you install it or, better yet, have a radiator shop do it and they might be able to repair any leaks that open - and remember, new radiator copper is THIN - very much thinner then the oldies.

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Old 12-13-2007, 01:17 PM
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Quote:
Originally Posted by Irelands child
new radiator copper is THIN - very much thinner then the oldies.Dave


Hate to think how thin it might be after running Muriatic (Hydrochloric) acid through it.
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Old 12-13-2007, 01:34 PM
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Quote:
Originally Posted by oldred
Hate to think how thin it might be after running Muriatic (Hydrochloric) acid through it.
Ya might just be standing there holding the radiator cap and wondering what that mess on the floor was
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Old 12-13-2007, 02:24 PM
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Send it out or use limeaway...
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Old 12-25-2007, 03:09 PM
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I am trying to remember my chemistry here, I think you would end up with copper chloride, but I could be wrong. That would be bad, it would be the same as iron oxide(rust) is to steel.
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Old 12-25-2007, 10:52 PM
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Old home remedy

Folks use this to clean drains without chemicals,if you have the radiator out of the car stand it up,plug the inlet and outlet,go get about two gallons of white vinegar and a large box of baking soda.Let the vinegar set about 15 min and pour in the baking soda a little at a time(it will foam like crazy) when it quits flush with clear water.
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Old 01-02-2008, 08:09 PM
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vinegar will dissolve mineral deposits, Might want to think about cascade or drano maybe.

I clean a lot of things with hot water and cascade. It's enough to clean things when boiled in them, and not caustic enough to eat anything including your fingers.
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