Using CLS for Leaching. Anyone Using it?

[GoldHappy]

We purchased CLS 22 from Action Mining out of Portland, OR, and are experimenting on crushed ore (100-200 mesh) that has been tested for gold by three different labs. After filtering the leach and heating it to release the air, we're finding that a yellow precip comes out on its own, before we ever hit the leach with zinc. Anyone else had that happen or any ideas what it might be?

 

[goldgetternews]

This is a guess if the leach is urea or thiourea it might be that your solution is cooling too fast.

 

[GoldHappy]

This is a guess if the leach is urea or thiourea it might be that your solution is cooling too fast.

Thanks, we appreciate the suggestion, but it actually starts dropping out when it's heating. We take it up to about 160 F and it's forming while it's hot.