How long does undiluted gold and selenium toner last

[mexipike]

I have a line on a lot of gold and selenium toner, some of it may have been opened, some not, but it's all in original bottles undiluted. i've searched a little bit here but everything I find is more concerned with diluted toners. So how long would these last undiluted.

Thanks,
John

 

[BMbikerider]

As far as I am aware - indefinitely

 

[roy]

That has always been my understanding.

 

[Doremus Scudder]

Stock solutions should last indefinitely as long as they have been stored properly (e.g., not frozen, etc.). Testing will tell the tale.

Best,

Doremus

 

[Jim Noel]

This is not true of some gold toners. Their shelf life may be fairly short.

 

[mexipike]

This gold toner is the fotospeed brand. The selenium is Kodak. I have to pay a little for a ton of it so I can't test it before I pay.

 

[mexipike]

Well I went and picked it up. I got 10 bottles of unopened Kodak Selenium and 5 1 litre FotoSpeed Gold Toner bottles. All for only $35
I'll test it, hopefully it all works. How long should the gold toner be able to be reused?

If it all works out I'll be set on toner for a while!

 

[L Gebhardt]

The gold in the toner is worth well over your purchase price, so even if the toner is bad you can still extract the gold for a profit. Good deal.