NACAP^®
NACAP is a corrosion inhibitor for water, alcohol and glycol systems. Particularly effective in preventing corrosion of copper and brass. Widely used in antifreeze where it functions as a copper corrosion inhibitor and alkaline buffer. It is an excellent corrosion inhibitor for aluminum in systems where aluminum is used in the presence of copper and copper alloys. NACAP is one of the standard copper corrosion inhibitors for the anti-freeze industry. Used as a chemical intermediate.

          VANCHEM^™ DMTD
VANCHEM DMTD common reactions are double decomposition reactions with soluble metal salts, salt formation with alkaline metal hydroxides, oxidation reactions involving mercaptans, addition reactions with organic compounds containing activated double bonds, reactions with epoxy groups, reactions with aldehydes and alcohols, salt formation with amines and ammonia and reactions with acyl chlorides. The two active sites on VANCHEM DMTD can generally be reacted successively.

          VANCHEM^™ NATD
VANCHEM NATD is a corrosion inhibitor and metal deactivator for nonferrous metals in aqueous systems. VANCHEM NATD is suggested particularly for protecting solder, aluminum, copper and copper alloys. It is stable and active at lower pH values than many mercapto compounds. VANCHEM NATD as a chemical intermediate is a stable reactive dimercaptide which is readily alkylated, oxidized to the disulfide, or converted to metal salts.