Carbamide Peroxide
Urea, compd. with hydrogen peroxide (1:1). Urea compound with hydrogen peroxide (1:1) [124-43-6]. » Carbamide Peroxide contains not less than 96.0 percent and not more than 102.0 percent of CH6N2O3.
Packaging and storage
Preserve in tight, light-resistant containers, and avoid exposure to excessive heat.
Identification
A:
Mix 1 mL of a solution (1 in 10) of it with 1 mL of nitric acid: a white, crystalline precipitate is formed.
B:
A solution of it (1 in 10) responds to the tests for Peroxide 191.
Assay
Transfer about 100 mg of Carbamide Peroxide, accurately weighed, to a 500-mL iodine flask with the aid of 25 mL of water, add 5 mL of glacial acetic acid, and mix. Add 2 g of potassium iodide and 1 drop of ammonium molybdate TS, insert the stopper, and allow to stand in the dark for 10 minutes. Titrate the liberated iodine with 0.1 N sodium thiosulfate VS, adding 3 mL of starch TS as the endpoint is approached. Each mL of 0.1 N sodium thiosulfate is equivalent to 4.704 mg of CH6N2O3.
Auxiliary Information
Please check for your question in the FAQs before contacting USP.
Chromatographic Column
USP32NF27 Page 1788
Chromatographic columns text is not derived from, and not part of, USP 32 or NF 27.
|