Chloroauric Acid

CAS: 16903-35-8
Molecular Formula: HAuCl4
Molecular Weight: 339.79
Product description:Gold chloride acid reagent generally contain four water of crystallization, chemical formula for AuCl3 · HCl · 4 h2o, needlelike crystals is golden yellow or orange. Easily deliquesce in the air. Lose a molecule of water in the dry air. Soluble in water and soluble in alcohol and ether, slightly soluble in chloroform. Corrosive, leaves purple skin on contact. From ethanol solution can crystallize in the anhydrous chloride acid of gold. Generally the gold dissolved in aqua regia, evaporation to remove made by hydrochloric acid.Can be used in the semiconductor and integrated circuit lead frame local gold-plated, printed circuit boards, electronic connectors and acid chloride gold and gold chloride acid powder 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.