The Formula of Vehicle Urea and How to Mix It
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Formula for vehicle urea solution: 1. Urea: White or light yellow, needle-like or prismatic crystals, with little or no powder. High-quality urea: (1) Appearance: Uniform crystals with consistent hardness. (2) Color and shape: White or light yellow prismatic crystals without impurities. (3) Gloss and texture: Translucent crystals with no surface reflection, smooth, loose, and not damp to the touch. (4) Burning test: Melts, emits white smoke, and has an ammonia odor. 2. Mixing ratios: (1) Standard urea solution: High-purity urea 32.5%, deionized water 67.5%. (2) Antifreeze urea solution: High-purity urea 32.5%, deionized water 52.5%, methanol 15%.