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Chloroauric Acid，16903-35-8，HAuCl4

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Product Details

Chloroauric Acid，16903-35-8，HAuCl4

Identification
Name		Chloroauric acid
Synonyms		Auric chloride Gold trichloride tetrachloroauric Tetrachloroauric(III) acid Gold(III) chloride solution GOLD TRICHLORIDE ACID BROWN TETRACHLOROAURIC ACID

Molecular Structure

Molecular Formula		HAuCl₄
Molecular Weight		339.79
CAS Registry Number		16903-35-8
EINECS		240-948-4
Properties
Density		3.9 g/mL at 25 °C
gold content		47.8％
Apprearence		buff crystal
Boiling point		100 °C
Solubility		H2O: soluble
Melting point		30°C
Safety Data
Hazard Symbols		C
Risk Codes		R34;R43
Safety Description		S26;S36/37/39;S45
Transport Information		UN 3260

Chloroauric acid uses:

It can be used for partial gold plating of semiconductor and integrated circuit lead frames, printed circuit boards, and electronic connectors.

connectors.

Mainly used for gold plating, special inks, medicines, porcelain gold and red glass, etc., as well as raw materials for the production of various gold compounds, photographic industry and chemical reagents.

Used to prepare stable nano-scale and underivatized colloidal gold in solution form.

Chloroauric acid production method:

In the mixture of nitric acid (relative density 1.40): distilled water: hydrochloric acid (relative density 1.19) = 1:5:5 (V) (chemically pure product), add pure gold foil (high-quality product) to dissolve it, and then dissolve the solution. After evaporating to a thick state, feels the excess nitric acid, adds a small amount of hydrochloric acid to evaporate again, repeat 3-4 times, and slowly pour chlorine into the liquid when it evaporates for the last time. The obtained mixture is cooled under constant stirring, and the obtained powder is dried to become the reagent crystalline chloroauric acid.

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Chloroauric acid, also known as Tetrachloroauric(III) acid, is a yellow-orange solid compound with the chemical formula HAuCl4. It is one of the most important and widely used compounds of gold, and has applications in various fields including nanotechnology, material science, and electronics.

The molecular weight of Chloroauric acid is 339.79 g/mol and it has a melting point of 254 °C. Its CAS number is 16903-35-8, and it is also known as Tetrachloroauric(III) acid.

Chloroauric acid is commonly used as a precursor for the synthesis of gold nanoparticles, which have potential applications in various fields such as medicine, catalysis, and environmental remediation. It is also used in the production of conductive films for electronic devices, and in the manufacturing of OLED displays.

At UIV Chem, we have extensive experience in the synthesis, purification, and characterization of Chloroauric acid. Our state-of-the-art R&D center and 1k grade clean workshop provide us with the necessary infrastructure and resources to produce high-quality Chloroauric acid with consistent purity and yield.

Our team of senior experts in fine chemicals and OLED industry, with their vast knowledge and expertise, ensure that our Chloroauric acid products meet the highest standards of quality and performance. We are committed to leveraging the power of chemistry to provide sustainable development solutions to our customers and contribute to the betterment of society. If you want to know more about our products, please feel free to contact us.