What is chloroauric acid CAS 16903-35-8? Chloroauric acid, with the chemical formula typically represented as HAuCl₄, is one of the most important and common compounds of gold. It is usually encountered as a tetrahydrate (HAuCl₄·4H₂O) . It appears as golden-yellow or orange-yellow needle-like crystals that are highly hygroscopic and readily soluble in water, ethanol, and ether Specification Product Name: Chloroauric acid Batch No. JL20221016 Cas 16903-35-8 MF Date Oct.16,2022 Packing 500g/bottle Analysis Date Oct.16,2022 Quantity 10kg Expiry Date Oct.15,2024 ITEM STANDARD RESULT Appearance Golden yellow acicular crystallization Conform Properties Hygroscopic , Soluble in water, alcohol, ether, slightly soluble in chloroform, corrosive, thermal decomposition，back spots in the light Conform Inductively Coupled Plasma/Elemental Analyzer Pd ＜0.0050 0.0019 Ru ＜0.0050 0.0020 Pt ＜0.0050 0.0017 Ag ＜0.0050 0.0015 Al ＜0.0050 0.0019 Fe ＜0.0050 0.0011 Mg ＜0.0050 0.0014 Si ＜0.0050 0.0011 Cu ＜0.0050 0.0013 Cr ＜0.0050 0.0010 Zn ＜0.0050 0.0011 Pb ＜0.0005 N.D. Au content ≥49.00% 50.02% Purity ≥99.90% 99.95% Conclusion Qualified Application 1.chloroauric acid CAS 16903-35-8 used for partial gold plating of semiconductor and integrated circuit lead frame, printed circuit board and electronic connector 2.Chloroauric acid mainly used for gold plating, special ink, medicine, porcelain gold and red glass, as well as raw materials for making various gold compounds, photography and chemical reagents. 3.Chloroauric acid used to prepare stable nanometer sized and undifferentiated colloidal gold particles in solution form. Packing 100g/bottle, 500g/bottle or requirement of clients. Keep it away from light at a temperature below 25℃
