11 Years Factory wholesale Auto Parts Q06 to Johannesburg Factory
Our products are widely recognized and trusted by users and can meet continuously changing economic and social needs of 11 Years Factory wholesale Auto Parts Q06 to Johannesburg Factory, We welcome you to visit our factory and look forward to establishing friendly business relationships with customers at home and abroad in the near future.
Our well-equipped facilities and excellent quality control throughout all stages of production enables us to guarantee total customer satisfaction for 11 Years Factory wholesale Auto Parts Q06 to Johannesburg Factory, We always welcome new and old customers presents us with valuable advice and proposals for cooperation, let us grow and develop together, and to contribute to our community and staff!
http://www.goldnscrap.com/index.php/gold/81-gold-reduction-with-oxalic-acid-complete-process ** In this video i’ll show the complete process for the reduction of gold from chloroauric acid using oxalic acid and pH adjustment.
This process is used exclusively as a second refining step. Meaning, the initial Aqua Regia solution already contains high putiry gold that was refined once in to the area of 99-99.9%.
Unlike The previous video (see link below), the gold dropped this way doesn’t precipitate as a cool lava lamp, but rather as fine brown powder that clumps together easily. Nice and shiny looking Dendrites might grow here and there. It is still very pure though
** The complete written tutorial which includes more pictures and exact amount of reagents used is now available here:
This is the first time i’m uploading a video with narration. Hope you will find it more convenient and easy to understand.
Learn more about Gold, Silver and PGM’s Recovery & Refining at Gold-N-Scrap website: