There are many types of compound fertilizers. According to the form of nutrient elements, they can be divided into potassium sulfate type compound fertilizers...

Molecular formula: CO(NH2)2, molecular weight 60.06, CO(NH2)2 is colorless or white needle-shaped or rod-shaped crystals...

Physical properties: Molecular formula: (NH4)2SO4 is colorless crystals or white particles and decomposes above 280℃.