Chloroauric acid Cas 16903-35-8

Electronics and Electroplating Industry: Serves as the core gold source for electrolytic and electroless gold plating solutions; used for selective gold plating on PCBs and integrated circuit lead frames, as well as for plating electronic connectors and RF contacts.
Nanomaterials Science: The primary precursor for producing colloidal gold and monodisperse gold nanoparticles; a standard raw material for reduction methods using sodium citrate or sodium borohydride.
Analytical Testing: A standard reagent for chemical analysis; used for identifying alkaloids and determining alkali metals and trace gold.
Coloring Materials: Raw material for red glass coloring, ceramic glazes, and specialty anti-counterfeiting inks.
Precious Metal Processing: Used to produce various gold salts and conductive gold pastes, and serves as an intermediate in wet-process gold extraction and purification.