Crop growth is inseparable from chemical fertilizers, and it is thanks to the use of chemical fertilizers that hundreds of millions of people are fed. Commonly used chemical fertilizers are divided into three main categories: nitrogen fertilizers, phosphate fertilizers, and potash fertilizers, and urea is an important type of nitrogen fertilizer. Below, we will gain a comprehensive understanding of urea.

Urea, a key fertilizer driving modern agriculture, was first produced in 1828 by a groundbreaking experiment by a German chemist. Today, it relies on the Haber-Bosch process to synthesize ammonia under high temperature and pressure. Through precise steps such as natural gas reforming to produce hydrogen and carbon dioxide reaction, it is finally melted and granulated into a high-efficiency fertilizer—every urea embodies the wisdom of the chemical industry.

The chemical formula of urea is CO(NH2)2. The production method involves reacting ammonia with carbon dioxide under high pressure to first produce ammonium carbamate, which is then dehydrated to produce urea.