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| Return Shipping Will Be Paid By | Seller |
| All Returns Accepted | Returns Accepted |
| Item Must Be Returned Within | 30 Days |
| Brand | JSP |
| Type | Gold Precipitant |
| Seller Warranty | Yes |
| Color | Gold |
| Material | Aqua Regtia |
| MPN | Does Not Apply |
| Country/Region Of Manufacture | United States |
| Suitable For | Identification/Testing |
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 precipitant for aqua regia. Use 1 oz of SMB mixed in 20-30 ml of water per ounce of metal in the aqua regia solution to precipitate the gold. A MUST-HAVE for anyone who invests in gold, silver, or platinum! If you have any further questions, please feel free to contact us. We look forward to serving you in the future.