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Names | |
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IUPAC name Ammonium tetrachloroaurate(III) | |
Identifiers | |
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3D model (JSmol) |
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ChemSpider | |
ECHA InfoCard | 100.205.444 |
EC Number |
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PubChem CID | |
CompTox Dashboard (EPA) |
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Properties | |
AuCl4H4N | |
Molar mass | 356.81 g·mol−1 |
Appearance | orange-red crystals |
Density | g/cm3 |
slightly soluble | |
Hazards | |
GHS labelling: | |
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Danger | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). |
Ammonium tetrachloroaurate is an inorganic chemical compound with the chemical formula NH4AuCl4. [1]
Ammonium tetrachloroaurate can be obtained by reacting a saturated solution of gold(III) chloride with ammonium chloride in hydrochloric acid. [2]
The compound is slightly soluble in water [3] and ethanol. [4] It forms hydrates. [5]
Ammonium tetrachloroaurate forms orange-yellow crystals. [6] The hydrate has a monoclinic crystal structure with the space group C 2/ c (space group no. 15). [7]
Ammonium tetrachloroaurate decomposes in air at temperatures from 230 to 350 °C . The decomposition reaction is endothermic. [8]
The hydrate is used to prepare Pd-Au alloy films. [9]
Ammonium tetrachloroaurate can be used to produce gold nanoparticles. [10]