Sciencemadness Discussion Board

what is the reaction with urea?

anne_atdf - 11-5-2007 at 00:44

i search how urea reacted with and what is the condition, by- product produced...etc...more particularly the reaction with nitrous acid (HNO2) and hypobromite...i know for the reaction with nitrous acid, we should be in acid solution and urea should be in excess...but it's all...if you are more information for me...(temperature...). For the reaction with hypobromite (or hypochlorite) i don't know what is the condition to make the reaction...i just know that:
CO(NH2)2 + 3 NaOBr --> N2 + CO2 + 3NaBr +2 H2O

thank's a lot and scuse for me english...(im french..)

solo - 11-5-2007 at 02:37

Sorry it's early in the morning ..... I thought I read stryene which ofcourse I misread your post......solo

Formatik - 7-8-2008 at 23:22

I don't know why this is in this section. But NaBrO reacts quicker with urea than NaClO at regular temperatures, and its over after a few seconds, even with low BrO- concentration. 90% of the urea is decomposed: (NH2)2CO + 3 NaBrO = 3 NaBr + 2 H2O + CO2 + N2, the rest is undecomposed. Excess urea reacts with NaBrO to NaHCOO and NaNCO (Gmelin C [D1] 420-421).