Chloroauric Acid Provider

Chloroauric Acid


CAS NO.: 16903-35-8

EINECS No.: 240-948-4

Molecular Weight:339.78

MF: AuCl4H

Purity: 47.8% 50%

Appearance: Orange crystal

HS Code:2843300090

Structural Formula:

Properties and application:

Alias Name: Chloroauric acid, Gold chloride acid, Auric acid, Gold chloride tetrahydrate, Gold trichloride hydrochloride, Tetrachloroauric acid, Aurochloric acid ,  Hydrogen tetrachloroaurate, Hydrogen aurchloride

Chloroauric acid is the inorganic compound with the formula HAuCl4. It is an orange-yellow solid, a common precursor to other gold compounds and an intermediate in the purification of gold metal. Commercial samples have the composition HAuCl4•n H2O with n = 3 or 4.

 

Applications:

It can be used for partial gold plating of semiconductor and integrated circuit lead frame, and gold plating of printed circuit board, electronic connector and other electrical contact components. Also can make red glass. Used as an analytical reagent for microanalysis of rubidium and cesium and measurement of alkaloid composition. Also used for photographic materials.

Chloraurate salts, especially sodium chloraurate Na[AuCl4] (prepared from the reaction of AuCl3 with NaCl), can replace toxic mercury (II) salts as catalysts for alkyne reactions.

At the same time, chloro-auric acid plays an important role in the preparation of nanoscale gold, and the fluorescent nano-gold produced by chloro-auric acid is usually directly reduced by reducing agent, which has an important application in analytical chemistry.

Specifications: 

Test Item

Result

HAuCl4·4H20

≥99.9

Au

47.8

Other Metallic Cation Impurities (MB

Pd

≤0.020

Pt

≤0.020

Ru

≤0.020

Ir|

≤0.020

Ag

≤0.005

Cu

≤0.005

Fe

≤0.005

Ni

≤0.005

Al

≤0.005

Pb

≤0.005

Si

≤0.005

 

Package :

5 grams/10 grams bottle etc or according to clients request.

  

Safety Protection:

Keep out of light and in low temperature

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