Zinc chloride is used as a soldering flux, catalyst, dehydrating and condensing agent, battery electrolyte, and metal etchant. It is used as a glazing flux in glassblowing and in glass etching, mordant in dyeing and printing, sizing and weighting fabrics, mercerizing cotton, and carbonizing woolen products. It is utilized in conserving anatomical samples, embalming products, wood preservative and deodorants. It is also employed in organic synthesis. Sales Specification Assay: 97.00% Min Appearance: White Iron(Fe): 10 ppm Max Lead (Pb): 10 ppm Max Zinc Oxide: 1.50% Max Sulfate: 0.015% Max Packing 55.12 Lb bag, 40 bags per pallet DOT Transportation UN No: 2331 Proper Shipping Name: Zinc Chloride, anhydrous Hazard Class: 8 Packing Group: III