A trial of extracting gold from stream sediment and High Au/Ag ore ...

aist.go.jp

A trial of extracting gold from stream sediment and High Au/Ag ore ...

Rough experiment of

dissolution/deposition of gold

In order to estimate dissolution rate of gold in HOS and how much

ascorbic acid needs to be precipitated gold, model experiment has been

carried out.

1. A gold wire (ca. 1m, 0.2mm in diameter) was added into HOS

(40ml) of I 2

(6mmol), NaI (6mmol) and ethanol (29.1g) with

stirring at room temperature.

2. After a hour, 10 ml HOS containing gold was separated, and used

for deposition experiments using ascorbic acid and water.

More magazines by this user
Similar magazines