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99% pure prilled Urea, pH balancer. Used in precious metal refining with aqua regia. Added to the filtered solution to balance pH.
Urea-Aqua Regia is a 99% pure, prilled urea that is used in precious metal refining with aqua regia. It is used to:
Adjust pH
Deplete nitric acid
Neutralize excess nitric acid
Prevent gold from redissolving
Urea is also called carbamide
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