Where to get Sodium MetaBisulfite from?

[goldmelts]

Hi,

I was reading that the home brewing sterilizers contain Sodium MetaBisulfite.

Does any one know if the home brew sterilizers are good to drop the gold out of solution? Do you know if the SMB in the steriliser is pure or does it contain additives?

What other products contain useable Sodium MetaBisulfite?

Goldmelts

 

[Irons]

There are a number of sources on Ebay.

 

[OMG]

I get potassium metabisulfite from the grocery store in the winemaking section. Works the same as sodium metabisulfite. Its labeled as potassium metabisulfite, with no other ingredients, but I don't know if its 100% pure.

 

[Smitty]

Yes, beer and wine making potassium or Sodium metabisulfite is ok to precipitate gold, I also personally buy it at home brew stores for precipitating my gold. I use the Sodium type.