Characteristics, Uses and Precautions of Industrial Urea

Industrial urea is a urea product made from ammonia and carbon dioxide as raw materials through processes such as synthesis, evaporative concentration, granulation or crystallization. It usually appears as white crystals or granules, is easily soluble in water, and has a high nitrogen content. Its main component is the same as that of agricultural urea, but it follows industrial-grade standards, and the requirements for purity, moisture, biuret and other impurity indicators are generally stricter.

In terms of uses, industrial urea is an important basic chemical raw material. It can be used to produce urea-formaldehyde resins, melamine, plastics, coatings, adhesives and other products, and is also used in flue gas denitrification, water treatment, and the pharmaceutical and dye fields. The automotive urea solution commonly seen in recent years is likewise made from high-purity urea as a raw material and is used for diesel vehicle exhaust purification.

When purchasing and storing it, you should check the executive standard and scope of application marked on the packaging, and distinguish industrial grade from agricultural grade according to the actual use. Urea readily absorbs moisture and cakes, so it should be stored in a cool, dry place with the packaging kept sealed and intact, avoiding heat and moisture that could affect quality.

It should be noted that although industrial urea has a high nitrogen content, the quality indicator priorities of the two differ, and it is generally not recommended to directly substitute it for agricultural urea as fertilizer. When preparing automotive urea solution, automotive urea that meets the requirements should be used, and ordinary industrial urea or agricultural urea must not be casually blended in, so as to avoid impurities damaging the exhaust treatment system.