This is a tutorial on making stannous chloride test solution for gold refining from solder.
You will need some hydrochloric acid that you can make yourself as explained here: [ Ссылка ]
If you buy hydrochloric acid at a hardware store, you may need to purify it as explained here: [ Ссылка ]
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Check out my other tutorials:
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#hydrochloricacid #purify #hcl
