Granular Powder, ACS — A colorless, odorless granular material. Astringent, metallic taste, efflorescent. This Zinc Sulfate is NOT a dietary supplement. It is a powder used in science labs and is NOT in tablet form. Not meant for internal use. We do not have the Zinc Sulfate supplement. NC-6782
Lab grade — Appears as white, translucent crystals. Soluble in water, insoluble in alcohol, absorbed in moist air. Used in several patina formulas. See More Info for formula list. NC-2725
Lab grade. Crystal — This is used in several patina formulas. See More Info for formula list. NC-11525
Granular Powder, ACS — A colorless, odorless granular material. Astringent, metallic taste, efflorescent. This Zinc Sulfate is NOT a dietary supplement. It is a powder used in science labs and is NOT in tablet form. Not meant for internal use. We do not have the Zinc Sulfate supplement. NC-3500
Lab grade — Lead Oxide, Lead(II) Oxide, or Litharge is commonly used for fire assaying of gold and silver ores. Restricted to Standard Ground shipping - lower 48 states only. NC-10042
Purified, 97% — Acetic anhydride is an acyclic carboxylic anhydride derived from acetic acid. Restricted to Standard Ground only within continental USA and Canada. NC-13127
Lab grade — Soluble in water and alcohol. This is used to create white to cream colored patinas on brass and bronze. Restricted to Standard Ground only. NC-5661
