Thanks Kurt that's why I'm on here so I don't make the same mistake someone else has done,
That is what we are here for - to help new members not make mistakes (if they ask "before" diving in) &/or how to fix mistakes (if they dive in before asking)
If you read this thread that Martijn provided a link to you will see that he (Martijn) after reviewing the documents provided by Jin Chan - that "buried" in those documents is the "truth" that this product is "in fact" a cyanide leaching process
Do you have a manual with actual instructions on how to use your product in stead of this one sentence?:
In other words - from their own document (Jin Chan) says that when using this product it needs to be done "in accordance with the
conventional cyanide process"
These companies (Jin Chan &/or Eco-Goldex) are only able to get away with "claiming" their products are eco friendly & safe because the potassium ferri/ferro cyanide is in fact safe as a product they can sell & ship - BUT - once you dissolve it to use it as a leaching agent it in fact becomes (potassium) cyanide
And that is because their product is potassium cyanide that is complexed with iron & as long as the cyanide is complexed with iron it is a safe product --- so they can make the "claim" that it is a safe product (for selling & shipping)
BUT - what they have also done - is add other chemicals that allows the iron to "disassociate" from the cyanide thereby "freeing up" the cyanide to work as cyanide --- so you MUST work with it exactly the same way you would if you had started with actual cyanide in the first place
The BIG problem with these products is getting your gold back from the leach solutions & that is because of the "other" chemicals they have added to the ferri/ferro potassium cyanide to disassociate the iron --- those "other" chemicals make getting your gold back VERY difficult
You can read more about that here -----------
https://goldrefiningforum.com/threa...-how-to-get-my-gold-out-of.30023/#post-314762
https://goldrefiningforum.com/threads/cyanide-eco-goldex-ammonia.25001/
AND - I can tell you this - even IF (the BIG IF) you are able to recover gold (as described in above links) you will NOT know if you recovered all of your gold unless you have ICP &/or AA testing equipment to test your leach solutions with (& ICP or AA test equipment is VERY expensive equipment)
Kurt