“ferrous ammonium sulfate”造句，怎麼用ferrous ammonium sulfate造句

There were no apparent different effects between using ferrous sulfate and using ferrous ammonium sulfate, the former was much cheaper and no secondary pollution.

In accordance with ferrous ammonium sulfate in water samples to calculate the amount of material to restore the volume of oxygen consumption, which was potassium dichromate titration reflux.