Malcolm Parker-Lisberg wrote:
>
>
> Make your own tin electroless tin plating solution, see:
> <http://www.voodooengineering.com/index.php/tinning/87-diy-tin-plating-solutiion>
> All chemicals available on ebay
>
That page lists the components as
∗ 0.5g Stannous Chloride
∗ 2.0g Thiourea
∗ 3.0g Sulfamic Acid
∗ 100.0 mL Distilled water
and further down that the proportions don't seem to be very critical.
Aside the fact that Thiourea seems like quite a nasty thing, the
Wikipedia does have this...
~~~
Silver polishing
According to the label on the consumer product, the liquid silver
cleaning product TarnX contains thiourea, a detergent, and sulfamic acid.
~~~
Come to think of it, I vaguely remember that this might have been looked
into by somebody previously.