Showing posts with label aqua regia. Show all posts
Showing posts with label aqua regia. Show all posts

How to prepare Aqua regia?


Preparing Aqua regia solution for dissolving Gold.




First, pour 150 ml concentrated HCl (hydrochloric acid) in a polypropylene container, and then slowly add 50 ml of concentrated HNO3 (nitric acid). Now Aqua regia is prepared and you can start to dissolve Gold from plated metals.



Gold recycling

Gold recycling is a business


If you have a large amount of electronic waste then you can start your own Gold recycling business.

First thing is to separate all kind of a materials into groups so that you can work with them. Gold is just one of valuable materials, don’t forget that you can recycle plastic, glass, silver, copper, and other.



When you have done with separating materials it is time to dissolve gold. Gold in most cases comes as a thin layer on the base material and it needs to be dissolved. To do that you must use one of these methods. First one is dissolving gold with Aqua regia, chemical process which is good, and one of the most famous processes for recycling gold.



Other method for recycling gold is reverse electroplating. This is electro chemical process and it is like Aqua regia very famous.



Gold recycling

Recycling gold from computer scrap

You want to recycle gold from PC boards? Have a hundred kilos of scrap and ask you self how to extract gold from it? You have heard about reverse electroplating but you don’t know how exactly that process goes. Aqua regia is too dangerous for you, or you just don’t know how to dissolve gold with chemicals.

Find all your answers on one place. Visit goldinpc.com site and learn all about gold recycling process. How to work with Aqua regia or maybe it is better way to deal with reverse electroplating process.

If you wonder of how many grams of gold is hidden in one kilo of electronic scrap go visit GoldInPC.com and search for your answers. Gold recycling

How to use Aqua regia for dissolving gold

Aqua regia comes from Latin name ‘Royal Water’ because this solution is used for dissolving gold which is noble element. It is a mixture of hydrochloric acid and nitric acid in ratio 3:1. This mixture is mostly used for removing noble metals such as gold, platinum and palladium from base elements.

Aqua regia is extremely corrosive and it can result in explosion or skin burns if it’s not handled right.

Safety measures must be taken when dealing with Aqua regia. Before using Aqua regia for dissolving gold or some other noble metal you should first learn something about emergency procedures in case something goes wrong.

In case of skin contact Aqua regia may cause skin burns. You need to flush skin with water for at least 15 minutes and necessarily seek for a medical attention.

Because Aqua regia is highly corrosive in case it comes to eye contact it could be very irritating. Flush contaminated eye (or both eyes) with fresh water for at least 15 minutes and seek for a medical attention.

In case of inhalation you feel irritation on the respiratory tract. Go on the fresh and uncontaminated air and seek for a medical attention. Symptoms for inhalation may be delayed.

More about using and handling Aqua regia you can find on this link. Gold recycling