heptahydrate

Iron(II) sulfate heptahydrate;

硫酸亚铁;

Lanthanum chloride (LaCl3), heptahydrate;

别：Lanthanum trichloride;

The preparation of zinc sulfate heptahydrate and copper sulfate pentahydrate from calcined zincblende was investigated.

经高温煅烧后的闪矿石与稀硫酸反应制备七水硫酸和五水硫酸铜。