Chemical - What can make the hcl/cl solution yellow before …
Jan 8, 2012 · Hello, title is pretty much my question. I am wondering what can possibly make my hcl turn yellow, before even adding the bleach? I am doing a stannous test on some …
Black powder/slime | Gold Refining & Metal Extraction Forum
Oct 9, 2011 · Finally after getting my gold to drop out of my hcl/cl solution after siphoning off most of the liquid I noticed most of it was black powder slime. I proceeded with a few hot hcl and hot …
Chemical - Using Zinc to deal with Tin Oxide from dirty Copper …
Aug 1, 2014 · The resulting hydrogen produced quite a head of froth as my HCl is store-bought muriatic acid which contains a foaming agent- I was able to knock it down with a spray bottle. …
Eat your heart out | Gold Refining & Metal Extraction Forum
Dec 23, 2023 · So this is the parasitic acid solution, and my HCL/cl solution after dropping with vitamin c. I know it's hard to tell cuz I can't take very good videos or pictures but there's quite a …
Gold not dropping after denoxing and SMB
Jul 6, 2024 · Hello everyone! I have fotten my 1st gold drop aftwr incinerating washing, hcl, wash, hno3, wash then AR -> sulfamic then 24 hours after i dropped the gold with SMB. (.34g). This …
about platinum precipitation! - Gold Refining & Metal Extraction …
Jan 20, 2023 · This is the stannous results, no.3 is from my hcl and peroxide batch, which has also leaked in to no.1 I will rinse off and retest and post results of my other solutions as well …
Lizards are drinking my HCL | Gold Refining & Metal Extraction …
Apr 23, 2024 · I put a pie plate of HCL outside a few days ago and i've found that Lizards were coming out in the droves to drink it. I feel bad if i've accidentally destroyed one or a few. Never …
Chemical - my hcl/cl does not turn yelloy but green.
Jan 11, 2012 · i am processing some pins in ap and after i wash added in hcl when i add clorx it the liquid turned a bright green. not yellow like in the pictures of others. do i need to remove …
Chemical - Is my HCl dissolving gold? | Gold Refining & Metal ...
Mar 9, 2013 · So, I am suspecting that my toilet-grade HCl is actually dissolving gold without anything else present. I explain. I dissolved in aqua regia some black dust leftover from …
Removing solder from printed circuit boards | Gold Refining
Jan 18, 2025 · Yes but that is easily mitigated by HCl and air. My post was aimed at the Tin Oxide part of the discussion. OK, got it! Tin oxide should easily dissolve in sulphuric acid—the more …