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After pickle wash
Problem after sulphuric acid pickle
| Speedy Builder5 | 13/05/2012 17:26:34 |
| 2878 forum posts 248 photos | Using dilute sulphuric acid as a pickle, and copper comes out nice and pink. However after washing in tap water, it turns golden brown with black stains. Could this be caused by chlorinated tap water ? |
| Richard Parsons | 14/05/2012 06:34:25 |
 645 forum posts 33 photos | It could be. Try a first rinse with deionised water - the stuff that is used in irons. Rdgs Dick Edited By Richard Parsons on 14/05/2012 06:34:38 |
| Speedy Builder5 | 14/05/2012 12:25:58 |
| 2878 forum posts 248 photos | Just done a pickle and washed in rainwater (not much acid rain where we live). Came out a lot cleaner. |
| DMB | 14/05/2012 17:23:04 |
| 1585 forum posts 1 photos | Depending on area of the country, maybe it was all the chalk (Alkali) in water, `fighting` the acid. |
| julian atkins | 16/05/2012 11:55:27 |
 1285 forum posts 353 photos | my method after pickling is then to scrub the boiler in hot soapy water in the domestic sink. the hot soapy water also helps get rid of heated flux deposits. it issurprising what extra muck comes off after such a wash in hot soapy water. the black stains included. cheers, julian Edited By julian atkins on 16/05/2012 11:56:12 |
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All Forum Topics > Beginners questions > After pickle wash