Urea,Prilled 8 ounces. 99% pure prilled Urea, pH balancer. Used in precious metal refining with aqua regia. Added to the filtered solution to balance pH.
It is used to:
Adjust pH
Deplete nitric acid
Neutralize excess nitric acid
Prevent gold from redissolving
Urea is also called carbamide
PN: GT522
