水合硫酸镁是一种相对密度1.68的化学物质。KIESERITE; MAGNESIUM SULFATE，HYDROUS; MAGNESIUM SULFATE MONOHYDRATE; SULFURIC ACID MAGNESIUM SALT HYDRATE; MAGNESIUM SULPHATE HEPTAHYDRATE 99.5%; MAGNESIUM SULFATE， PURATRONIC， 99.997% (METALS BASIS); Magnesiumsulfate，dried，containsca1-2molwaterofhydration; Magnesium sulfate， dried， contains 3 to 4 moles of water，; magnesium sulfate hydrate， puratronic; Magnesium sulfate，dihydrate; Magnesium sulfate，pentahydrate