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I wonder why HCl was not a viable option for 4metals "dirty" gold percentage. And what benefit this pulping gave him over straight HCl.

I agree, sulfuric is a pretty scary thing, especially when hot. But, I consider it another tool I have in my bag, for whenever I need another option.

The 3 grams of gold that I pulped, ended up melting perfectly fine and was nice and clean, but, I cant really use that as a litmus test for success, as it was dropped from a very clean solution.

I use the standard washing procedures, almost religiously, and vary from them rarely. Save the fact I don't use ammonia, unless I have a good bit of AgCl that just wont get cleaned up with the HCl

[QUOTE="Topher_osAUrus, post: 272945, member: 49140"] I wonder why HCl was not a viable option for 4metals "dirty" gold percentage. And what benefit this pulping gave him over straight HCl. I agree, sulfuric is a pretty scary thing, especially when hot. But, I consider it another tool I have in my bag, for whenever I need another option. The 3 grams of gold that I pulped, ended up melting perfectly fine and was nice and clean, but, I cant really use that as a litmus test for success, as it was dropped from a very clean solution. I use the standard washing procedures, almost religiously, and vary from them rarely. Save the fact I don't use ammonia, unless I have a good bit of AgCl that just wont get cleaned up with the HCl [/QUOTE]

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