Chloroauric Acid 16903-35-8 CAS NO.16903-35-8

Gold chloride acid is orange crystal, easy deliquescence, soluble in water.Thermal decomposition of gold.The most common compound chlorine acid is gold.Gold chloride acid has a very wide range of USES, mainly used for analysis reagent and gold-plated reagent.
Chinese gold chloride Acid, the English name (Ⅲ) Acid chloride alloy Chloroauric Acid chemical formula HAuCl4 · 4 h2o molecular weight 411.85 CAS login registration number 16903-35-8 einecs number 240-948-4 water-soluble soluble in water tight degree of 3.9 g/cm3 view orange easy deliquescence crystal light should deposit gold, gold-plated, quantitative analysis of risk description such as stimulating dangerous goods transportation number UN 1789 8 / PG 3 store away from light, placed in low temperature

Gold chloride acid aqueous solution containing the tetragonal plane [AuCl4] - ions, which can made a lot of salt containing planar square ion [AuX4] - (X = F, Cl, Br, I, CN, SCN, NO3) [3]
Can be used in the semiconductor and integrated circuit lead frame local gold-plated, printed circuit boards, electronic connectors and


Gold chloride acid and acid chloride gold powder
Other electric contact element gold-plated.Also can produce red glass.Used as analytical reagent, dedicated to rubidium, cesium trace analysis and measurement of alkaloids, etc.Is also used in photographic materials.
Gold chloride acid salt, especially NaAuCl4 gold chloride acid sodium (made by reaction with NaCl AuCl3), can replace toxic mercury (II) salts used as catalyst for the reaction of alkyne.
At the same time, gold chloride acid has important application for preparation of nano-sized gold, usually by reducing agent direct reduction of gold chloride acid with fluorescent effect of gold nanoparticles, have important applications in analytical chemistry.