Gold Refining Methods

Naming a chemical that is used in Aquaregia to displace gold.?

I am refining gold by meance of aquaregia method.After dissolwing the impure gold in the mixture of Nitric acid and Hydrochloric acid I use a white concentrate liqid which is diluted in water in the ratio of 1:7. And then ioptain gold precipate. It is then dried and mealted to get pure gold. I want to know the liquid’s chemical name, because the seller refuse to tell the chemical name. So i need the experts help. Please help me. thank you.

might be mercury compound(only Mercury can dissolved gold))

5. Kiln shut down first gold pour

Memorial of the Congress of the United States,: Requesting an Investigation and Legislation in Relation to the New Method for Refining Gold, $16.98 This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated.1851 Excerpt: … possible after that value has been ascertained, would ordinarily be found more than sufficient for the purpose. 9th. That it appears from the Treasurer’s last published statement of the amoun…

On Gold and Silver: Mines and Refining Methods of the 1870s …

Report Made To The Hon. Thomas Corwin, Secretary Of The Treasury: By Professor R. S. Mcculloh, Of His Operations At The Mint Of The United States, In Refining California Gold By His Zinc Method… $12.06 This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imp…