por | Jul 20, 2026
PRODUCT DETAILS This listing includes: – (1) JSP 4 ounce bag of Gold Precipitant 4 ounces Sodium Metabisulfite, 99% (Na2S2O5) pure food/photo grade. Also known as SMB, Pyrosulfite, and Disodium. Used in gold refining as a gold precipitant. To be used as a gold...
por | Jul 20, 2026
• Ideal for scrap gold refining and e-waste recovery. • scrap gold refining. • aqua regia refining processes. • hobby and professional gold refining. During the gold refining process.
por | Jul 20, 2026
This listing includes: – (1) JSP 8 ounce bag of Gold Precipitant 8 ounces (1/2 lb) Sodium Metabisulfite, 99% (Na2S2O5) pure food/photo grade. Also known as SMB, Pyrosulfite, and Disodium. Used in gold refining as a gold precipitant. To be used as a gold...
por | Jul 20, 2026
• Ideal for scrap gold refining and e-waste recovery. • scrap gold refining. • aqua regia refining processes. • hobby and professional gold refining. During the gold refining process.
por | Jul 19, 2026
This listing includes: – (1) JSP 16 ounce bag of Gold Precipitant 16 ounces (1 lb) Sodium Metabisulfite, 99% (Na2S2O5) pure food/photo grade. Also known as SMB, Pyrosulfite, and Disodium. Used in gold refining as a gold precipitant. To be used as a gold...
