Sodium sulfate decahydrate7727-73-332 % similar Copper sulfate pentahydrate7758-99-832 % similar Ferrous sulfate heptahydrate7782-63-032 % similar Aluminum sulfate octadecahydrate7784-31-832 % similar Beryllium sulfate tetrahydrate7787-56-632 % similar Cadmium sulfate hydrate (3:8)7790-84-332 % similar Nickel perchlorate hexahydrate13520-61-130 % similar