16 oz JSP Sulfamic Acid Powder - 99% Reagent Grade ? For Gold Refining, Descaling Electroplating ? Sealed Bag ? Product Overview 99% Pure Reagent Grade Sulfamic Acid (H?NSO?) CAS #: 5329-14-6 Net Weight: 16 ounces (1 Pound) Packaging: Clear resealable zip bag ? tamper-sealed Fine white crystalline powder Ships from Pennsylvania, USA ? Ideal For: Neutralizing aqua regia in gold refining Rust, lime scale calcium deposit removal Electroplating electroless plating solutions Hydroponics and pH control Jewelry and metal descaling Silver polish base ?? Why Buy from GTE? Professional-grade purity packaging Packed in a vapor-safe resealable bag to reduce cost and bulk No plastic jars, no leaks ? safer, more compact storage Backed by GTE?s reputation for quality gold silver testing solutions ? Shipping Compliance Ships via UPS Ground only We do not ship internationally due to hazmat restrictions Orders placed before 2 PM EST typically ship same day Hazmat-compliant packaging for safe delivery Tracking included with every order ?? Safety Handling For external, industrial, and lab use only Do not inhale or ingest. Avoid contact with skin and eyes Use in a well-ventilated area with appropriate PPE Keep out of reach of children and pets Store in a dry, cool location in original sealed bag ? Need gold test kits, or other refining supplies? Check our GTE store for the full collection of chemicals, test kits, and tools trusted by professional refiners.