CAS 16903-35-8 Chloroauric acid - Catalysts / Alfa Chemistry

Synonyms

Hydrogen tetrachloroaurate(III) solution

Molecular Weight

339.79

Molecular Formula

HAuCl4

Boiling Point

100 °C

Melting Point

30 °C

Purity

99%+

Density

3.9 g/mL at 25 °C (lit.)

Solubility

Miscible with water, alcohol, ester, ether and ketone

Appearance

Yellow liquid

Storage

2-8 °C

MDL Number

MFCD00149903

Symbol

GHS05, GHS07

UN Number

UN 3260 8 / PGIII

Application

Chloroauric acid, appearing as golden to yellowish-brown crystals or powder, serves multiple key purposes. Primarily, it is an essential precursor in gold purification through electrolysis. Additionally, Chloroauric acid is integral to the recovery, concentration, and purification processes of gold, and aids in its analytical determination. This compound is crucial for synthesizing various gold compounds and plays a catalytic role in the creation of 2-arylbenzoxazoles. It finds applications in alkaloid determination, gold electroplating, photography, and the production of gold powder, porcelain colors, red glass, and specialized inks. It also serves as an analytical reagent in the microanalysis of elements such as rubidium and cesium. Moreover, Chloroauric acid is utilized in the semiconductor industry, for electronic connectors, localized gold plating on integrated circuit lead frames, and the manufacturing of printed circuit boards.

February 16, 2025

Efficient and Versatile Gold Precursor

Using Alfa Chemistry's chloroauric acid greatly facilitated my research. It was pivotal in gold purification and worked exceptionally well for synthesizing gold compounds. Its versatility enhanced our analysis and production processes in the lab. Highly recommended!