Ok, found my text books. It looks as though calcium carbonate or magnesium carbonate are your best bet for safe and easy-to-obtain home use.
I've just found a paper, though, that suggests you can get pretty good results with bicarb of soda! I'd test it before you do it with anything valuable, mind.
If you do decide to try it, let me know and I'll do a bit more research: I think I still have my course notes somewhere.
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zvi and
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Date: 2015-05-21 07:35 pm (UTC)I've just found a paper, though, that suggests you can get pretty good results with bicarb of soda! I'd test it before you do it with anything valuable, mind.
If you do decide to try it, let me know and I'll do a bit more research: I think I still have my course notes somewhere.