Does this gold compounds can found in natural gold ore or someware in earth?Or are they made by man?
Fluorides
* AuF3: gold (III) fluoride
* AuF5: gold (V) fluoride
Chlorides
* AuCl: gold (I) chloride
* [AuCl3]2: gold (III) chloride
* Au4Cl8: gold (I, III) chloride
Bromides
* AuBr: gold (I) bromide
* [AuBr3]2: gold (III) bromide
Iodides
* AuI: gold (I) iodide
* AuI3: gold (III) iodide
Oxides
* Au2O3: gold (III) oxide
Sulfides
* Au2S: gold (I) sulphide
* Au2S3: gold (III) sulphide
Selenides
* AuSe: gold (I, III) selenide
* Au2Se3: gold (III) selenide
Tellurides
* AuTe2: gold ditelluride
see plese this info http://www.webelements.com/webelements/elements/text/Au/comp.html
All gold compounds occur in the crust of earth in the form of their ores.These ores are then concentrated by different inorganic methods such as froth floation,electrolysis or chemically to convert then into their natural elemental form.
After purification these gold particles are used to synthesize different oxidation state metal compounds for the precursor.
These gold ores are present in the crust of the earth in the form of their oxide/ ores.These are natural and whatever chemistry is studied in the lab is of Pure Gold which is commercially extracted by chemical company.
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