1. Purpose and level：

Magnesium sulfate has different uses and grades, and its natural prices are different. Magnesium sulfate is divided into industrial grade, agricultural grade, medical grade, food grade, etc. According to its use. Customers consult how much is a ton of magnesium sulfate, which generally refers to industrial grade and agricultural grade; customers consult how much is the price of magnesium sulfate for a bottle, and how much is a bag of magnesium sulfate, which generally refers to pharmaceutical grade and food grade.Obviously, the prices of industrial grade magnesium sulfate used for natural sewage treatment and magnesium sulfate used for medicine and food are different, and the medical food grade is definitely greater than the industrial grade magnesium sulfate.

2. Types: Magnesium sulfate exists in many forms. There are magnesium sulfate heptahydrate, magnesium sulfate monohydrate, anhydrous magnesium sulfate, as well as large particles, medium particles, small particles, powders, etc. The prices of different forms of magnesium sulfate are different. The price of anhydrous is definitely higher than that of monohydrate, and the price of powder is definitely higher than that of large particles.

3. Purity: When purchasing, carefully check the content of each component, especially the content of magnesium sulfate, because some have impurities or other ions, which must be selected according to demand. Medical food grade requires high content and few impurities, so its price is higher than industrial grade and agricultural grade.