I believe 4metals meant a dilute solution of ammonium chloride for the rinse.Filter out the salt and rinse it with a dilute solution of ammonium chloroplatinate as the salt is slightly soluble in water.
Yup, sorry, ammonium chloride. I use a 7 to 10% solution. I just dilute some of the saturated solution left over to get me in the approximate range.I believe 4metals meant a dilute solution of ammonium chloride for the rinse.
Low concentration electrolyte still has potency to dissolve some of the impurities. Technically, if solution only contain Au and Pt, then obviously there would be nothing much to wash out. But in utmost simplicity, it help you to suck all of the mother liquor after NH4Cl precipitation of Pt. You cannot effectively do it with plain H2O, because it will dissolve some of the Pt salt. From my experience, if you are working in fair concentrations of Pt (more than 50g/L), it is sufficient to use 5% solution of NH4Cl (roughly 1 M - molar) and it will drag very little Pt with it compared to bulk processed. You will always cement waste streams, so you get it in the end.What does the ammonium chloride remove from the precipitate? I have never worked with platinum other than cement it for later.
What does the ammonium chloride remove from the precipitate? I have never worked with platinum other than cement it for later.
Do u still buy theseNo need to separate or remove Pt from your Au, I will buy it as is. I will pay according to the % of each metal.
Enter your email address to join: