Ferrous sulfate is a common product, which plays an important role in family life, industrial production and water treatment industry. In family life, ferrous sulfate is mainly used as a fertilizer to cultivate flowers. It is used as raw material in industrial production and as coagulant in water treatment industry.

At present, there are three kinds of ferrous sulfate in the market, which are anhydrous ferrous sulfate, ferrous sulfate pentahydrate and ferrous sulfate heptahydrate. In the strict sense of chemistry, it belongs to different substances, but the actual effect of water is not very different.

Anhydrous ferrous sulfate is a very good ferrous sulfate product on the market at present. Generally, anhydrous ferrous sulfate is light white powder, and it is very dry, and the purity is also very high. It is better on all sides, but the corresponding price will be higher. Anhydrous ferrous sulfate generally has the advantages of good stability and not easy to deteriorate.

Ferrous sulfate pentahydrate as the name suggests is ferrous sulfate contains five crystal water, generally ferrous sulfate pentahydrate is light green powder with a little wet feeling. Ferrous sulfate heptahydrate contains seven crystal water, which is usually green powder, and has obvious wet characteristics in all aspects. Ferrous sulfate pentahydrate is cheaper than ferrous sulfate, while ferrous sulfate heptahydrate is cheaper than ferrous sulfate pentahydrate.

There will be some differences in the use effect of different kinds and prices of ferrous sulfate, but at present, most of them are only the problem of the dosage, and the effect of ferrous sulfate itself will not be greatly changed because of the amount of water content.

Therefore, the choice of ferrous sulfate needs to choose suitable use according to the needs, so as to have both effect and reduce cost.