Magnesium Sulfate Heptahydrate

chemical name   magnesium sulfate

puirty                99.5%

mgso4              48.95%min

Mgo                  16.27%min

Mg                    9.8%

Ph                       5-9

Cl                      0.02%max

Fe                       0.002%max

As                        0.0002%MAX

Pb                         0.00008max