Why is solid aluminum dihydrogen phosphate more expensive than liquid aluminum dihydrogen phosphate?

 Aluminum dihydrogen phosphate, also known as aluminum dihydrogen phosphate, has two kinds: liquid and solid. Liquid aluminum dihydrogen phosphate is colorless and transparent viscous aqueous solution. Concentrated phosphoric acid reacts with aluminum hydroxide to generate aluminum dihydrogen phosphate, and aluminum dihydrogen phosphate solution can be prepared by using the two raw materials and water.

Vacuum evaporation of aluminum dihydrogen phosphate solution at room temperature and evaporation of water in the air at about 95°C can obtain solid aluminum dihydrogen phosphate powder. In industry, solid aluminum dihydrogen phosphate is produced by spray drying. Solid aluminum dihydrogen phosphate has strong hygroscopicity and can be redissolved in water, and its solubility increases with time.

What is the difference between liquid aluminum dihydrogen phosphate and solid aluminum dihydrogen phosphate?

It is difficult to accurately quantify the binding agent of liquid or colloid, while dry powder binding agent is more conducive to quantitative use and has higher strength when dried in air.