Urea, 500g

  • USP
  • (NH2)2CO
  • 57-13-6
  • Download
  • See Below.
  • Not Regulated.
  • Buy at least 12, save 10%
  • NC-5184
Price: $19.95
- +

Our USP grade Urea, also called carbamide, is soluble in water and alcohol and is non-combustible. In gold recovery processes, it is used as a neutralizer of excess nitric acid in aqua regia solutions. Urea reacts with the nitric acid to form nitrogen gas and water, which reduces the acidity of the solution. It is important to ensure that the solution does not become too acidic, as this can cause the gold to be oxidized and lose some of its value.

In the process of gold extraction from e-waste, Urea is usually used along with Sodium Metabisulfite.


Unopened chemicals in original packaging may be returned within 30 days of shipment with prior approval. Call 800-372-6726. Customers are responsible for shipping costs.


Chemicals with hazard fees are limited to the 48 contiguous U.S. states. Ground-only (No-Fly) chemicals are limited to the 48 contiguous U.S. states and Canada, unless otherwise stated.


Certificates of Analysis for chemicals are available upon request. Use our request page at this link