What raw materials are used in automotive urea?

1 Answers
KadenFitz
07/30/25 8:29am
Automotive urea is an essential product for heavy-duty diesel vehicles to meet the National IV emission standards. Automotive urea refers to an aqueous urea solution with a urea concentration of 32.5% and a solvent of ultra-pure water, with raw materials being urea crystals and ultra-pure water. Vehicle emission standards refer to regulations on the content of harmful gases such as CO, HC+NOx, and PM emitted from vehicle exhaust. Precautions for urea addition and storage: During transportation, urea needs to be protected from light and high temperatures. The optimal transportation and storage temperature should be maintained between -5°C and 25°C, as high temperatures can cause urea decomposition. When carrying urea in the vehicle, necessary shockproof measures should be taken for the urea packaging to avoid spillage due to road bumps, which could corrode the vehicle. If the purity of the automotive urea is insufficient or the quality is inferior, the vehicle's engine may automatically decelerate. Inferior quality urea can contaminate the catalyst in the SCR catalytic reaction tank, leading to serious consequences.
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