: A precise analysis—often a combination of fire assay and ICP (Inductively Coupled Plasma) —determines the exact fine silver content to ensure accurate payment. Purification Methods :
Sterling silver refining is the chemical and metallurgical process of purifying "92.5% pure" scrap into "99.9% fine" silver bullion. This is essential for recycling jewelry, flatware, and industrial scrap back into investment-grade bars or manufacturing material. sterling silver refiners
: Incoming sterling scrap is weighed and melted in induction furnaces to create a uniform alloy, often poured into anodes for electrolysis or sampled as "shot". : A precise analysis—often a combination of fire
: Silver is dissolved in nitric acid, then precipitated as silver chloride (by adding salt) or "cement silver" (by adding copper). : Incoming sterling scrap is weighed and melted
: The pure crystals or powder are melted and cast into granules (shot), coins, or bars ranging from 1 oz to 1,000 oz. Top Recognized Refiners How to refine sterling silver