1930 Krase Equilibria in the carbamate-urea-water-ammonia system

The present expansion of synthetic ammonia production in this country     has stimulated interest in the production of new nitrogen carriers that can be used for agricultural purposes. In this regard, urea is a most promising compound. It has a high nitrogen content, it is readily hydrolyzed in the soil, and it is easily assimilated by plants. Then too, it is important as a starting point for organic syntheses, and for the production of condensation products of urea and formaldehyde. Undoubtedly as the cost of produc­tion of urea is reduced, other uses will be developed.

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