Main types: According to the particle size, there are mainly 2 types: 1. 10~40 mesh; 2. 30~100 mesh. Features: 1. Big solubility in water, alcohol and ether; 2. Among all the sour agents, CAA's acidity is the most accepted by human; 3. Water softening ability, it can combine the Ca2+ and other metal ions (except for alkali metal), and for the compounds (like Calcium citrate), their solubility in cold water is higher than hot water, which is a big advantage in detergent industry; 4. pH buffering ability; 5. Low toxic.
