Chloroauric acid (48~50% Au basis) is an inorganic compound with the chemical formula HAuCl4. Chloroauric acid is produced by dissolving gold in aqua regia (a mixture of concentrated nitric and hydrochloric acids) and then carefully evaporating the solution[1]. Chloroauric acid is a high-purity gold compound, standardized by its gold content, and is used in the synthesis of gold nanomaterials, gold plating, photography, and imaging applications[2, 3]. Chloroauric acid is a yellowish-gold crystalline substance that is highly hygroscopic and corrosive, it is very soluble in water, ethanol, and ether[4].
References:
[1] Dawson S R. Acetylene hydrochlorination using gold catalysts[D]. Cardiff University, 2019.
[2] Fan J, Cheng Y, Sun M. Functionalized gold nanoparticles: synthesis, properties and biomedical applications[J]. The Chemical Record, 2020, 20(12): 1474-1504.
[3] Sarfraz N, Khan I. Plasmonic gold nanoparticles (AuNPs): properties, synthesis and their advanced energy, environmental and biomedical applications[J]. Chemistry–An Asian Journal, 2021, 16(7): 720-742.
[4] de Carvalho D W. Bioengineered Gold Nanostars for One-Pot Separation and Immunodetection of a Recombinant Malaria Antigen[D]. Universidade NOVA de Lisboa (Portugal), 2021.
Chloroauric acid (48~50% Au basis)是一种无机化合物，化学式为HAuCl4，是通过将金溶解在王水（浓硝酸和盐酸的混合物）中，然后小心地蒸发溶液而产生的[1]。Chloroauric acid是一种高纯度的、以金含量为规格标准的重要黄金化合物，能够用于金纳米材料合成、镀金、摄影与成像等[2, 3]。Chloroauric acid是一种金黄色晶体，具强吸湿性、腐蚀性，极易溶于水、乙醇和乙醚[4]。