Precious Metal Refining & Recovery, Episode 7: Fining Silver

2016-03-24

[public] 959K views, 17.3K likes, 468 dislikes audio only

I refine some silverware into a pure silver bar.

There seems to be some missing video at around 7:12 not sure why... This has happened before. There is nothing important so I have instructed YouTube to just remove the blank segment, lets see if they do it.

Water into acid: /youtube/video/_f0vK8Wffgg

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dissolve it in nitric acid
/youtube/video/IeLczpPCqV8?t=75.169998

supplement it with some sulfuric acid
/youtube/video/IeLczpPCqV8?t=92.119003

using a little bit of nitric acid
/youtube/video/IeLczpPCqV8?t=128.539

add about 500 milliliters of sulfuric
/youtube/video/IeLczpPCqV8?t=191.28

dilute the acid with a little bit of water
/youtube/video/IeLczpPCqV8?t=222.239

rinse the silver off with clean water
/youtube/video/IeLczpPCqV8?t=287.07001

dissolved all of the remaining silver with nitric acid
/youtube/video/IeLczpPCqV8?t=354.04999

dilute the silver nitrate in the bucket
/youtube/video/IeLczpPCqV8?t=451.70001

pour in a little bit more of the salt water
/youtube/video/IeLczpPCqV8?t=552.27002

pour off the solution
/youtube/video/IeLczpPCqV8?t=705.76898

using a potassium hydroxide
/youtube/video/IeLczpPCqV8?t=750.79901

put it inside of a crucible cap
/youtube/video/IeLczpPCqV8?t=823.28998

pour it into the mold
/youtube/video/IeLczpPCqV8?t=939.64001