Among the two methods, whiteness is the most prominent. Chlorination method contains almost no iron ions, the whiteness is usually very good, and the sulfuric acid law is uneven. The whiteness of Japanese 930 is good, but it still can't reach the whiteness produced by any chlorination method. There are also domestic manufacturers using sulfuric acid method, and the whiteness is much worse.
Secondly, fineness and dispersion. Chlorination method has uniform particle distribution, fine fineness and good dispersibility. The same is true of sulfuric acid method. It's good to do it well, but it's not decent to do it rough, and its dispersion is not good.
Generally, the oil absorption of chlorination method is about 19, and that of sulfuric acid method is about 2 1.
Covering power is hard to say,
Let's just say that chlorination is good, and sulfuric acid is good and bad. The good one is better than some chlorination methods, and the bad one is hard to say. In a word, chlorination method is generally superior to sulfuric acid method in hiding power.
To sum up, there is nothing wrong with the chlorination method so far, but the sulfuric acid method is uneven, and the good one can't catch up with the general chlorination method.
Or take some goods to see and compare.