| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an aqueous solution of urea, capable of effectively inhibiting the precipitation of the urea in the aqueous solution of the urea. <P>SOLUTION: The aqueous solution of the urea comprises water and the urea as main components, and contains a precipitation inhibitor comprising cyanic acid or a cyanic acid salt in the main component. <P>COPYRIGHT: (C)2007,JPO&INPIT |
