Vehicle urea can catalytically reduce nitrogen oxides (NOx) in exhaust gas into harmless nitrogen (N2) and water (H₂O) in the selective catalytic reduction (SCR) system of diesel vehicle exhaust. Students who have not driven a diesel car may not know that the car urea balance is usually displayed on the dashboard of a diesel car (similar to a car fuel gauge), and when the car urea balance is less than about 20% The urea solution for vehicles should be added in time.
(Under normal circumstances, the urea consumption of diesel vehicles is about 3%-5% of diesel)
becauseOur domestic vehicles are mostly gasoline vehicles, while diesel vehicles basically appear in the form of trucks or vans.So most people know very little about diesel cars, let alone car urea.Urea for vehicles is composed of 32.5% high-purity urea and 67.5% deionized water.
Under normal circumstances, car urea is harmless to the human body (after contacting the skin, it only needs to be washed with a lot of soapy water or clean water, but remember not to enter the eyes or swallow), but if the car urea is in high temperature conditions Ammonia gas (NH₃) may be released. However, NH₃ will have corrosive and irritating effects on the human skin tissues it comes into contact with. If you are exposed to ammonia for a long time, symptoms such as skin pigmentation or skin ulcers may occur. (Once this happens, you should seek medical attention immediately, so as not to cause more serious consequences)
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