silver recovery

[Ian_the_framer]

I am sure that this has been covered before so if somebody can point me in the direction os a previous thread. Thank you

Alternatively does anybody knows a supplier of affordable silver recovery units please

I am not interested for financial reasons as i use so little, but would like to remove the silver from fixer for environmental reasons

Many thanks

[AJUK]

I wonder if there is anybody who would want my used fixer?

[LargeFormat]

Good for you Ian. When I designed the National Film and Television Archive for the British Film Institute we incorporated silver recovery. They may be able to point you in the right direction.

[John_K]

I did hear of someone extracting the silver from used fixer using the old silver plating method. The old fixer was emptied into a metal container and then the negative terminal from a car battery charger (set at 6 Volts) was attached to to the side of the container. The positive lead was attached to a polished strip of copper and dangled into the fixer. The current was switched on and the silver contained in the fixer over time (actually overnight) migrated onto the copper strip. This friend reconned that by doing this he was able to re-use the fixer again and again once the silver had been extracted.

It is a while since I was in contact with him and the connections of the terminals may be the wrong way round, but with only 2 choices to make it would not be difficult to change.

[Ian_the_framer]

found this after much searching

http://www.porters.com/silver-magnet...very-unit.html,

seems ideal, trying to find out if there is a uk supplier or if they are compatable with european power supplies.

[John_K]

found this after much searching

http://www.porters.com/silver-magnet...very-unit.html,

seems ideal, trying to find out if there is a uk supplier or if they are compatable with european power supplies.

The same technique as my posting immediately before yours but a lot more expensive.

[jeff_worsnop]

I wonder if there is anybody who would want my used fixer?

I heard that wire wool in the fixer attracts silver from the fixer. Perhaps it does. I would be interested to know if it does work and the chemistry behind it.
Cheers

[Malcolm_Stewart]

I wonder if there is anybody who would want my used fixer?

I heard that wire wool in the fixer attracts silver from the fixer. Perhaps it does. I would be interested to know if it does work and the chemistry behind it.
Cheers

I used to understand this many years ago! But time has passed...

Try here

[Benchista]

I wonder if there is anybody who would want my used fixer?

I heard that wire wool in the fixer attracts silver from the fixer. Perhaps it does. I would be interested to know if it does work and the chemistry behind it.
Cheers

I used to understand this many years ago! But time has passed...

Try here

Iron is more reacive than silver, which is comparatively pretty inert. The iron dissolves and effectively displaces the silver in the silver bromide - the silver is reduced to a metallic state. Problem is what you do with it next...