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Ammonium dihydrogen phosphate, also known as monoammonium phosphate (abbreviated as MAP), has the molecular formula NH₄H₂PO₄. It is easily soluble in water, and its aqueous solution is acidic. It mainly uses a single ammonia neutralization process, with the neutralization degree controlled at around 1.00. There are generally two granulation methods: spray granulation drying and spray drying. The most common method is to produce powdery monoammonium phosphate by spray drying, which is mainly used as a raw material for the production of compound fertilizers.

In life, we will also come into contact with Optical Brighteners, such as clothes, we will directly come into contact with Optical Brighteners, or we will indirectly come into contact with Optical Brighteners when washing clothes with laundry detergent.

Trimellitic anhydride is a multi-purpose organic chemical raw material, and its main application areas include:

Trimellitic anhydride is an important chemical raw material. This article introduces its manufacturing method in detail, including raw material preparation, reaction process, post-processing and other links, and emphasizes the importance of quality control and environmental safety. Through scientific manufacturing and strict quality control, high-quality TMA products can be produced.