3 bottles totaling 3 pounds of tech grade magnesium sulfate. *DISCLAIMER* THIS PRODUCT DOES NOT MEET PPPA REQUIREMENTS AND IS INTENDED FOR INDUSTRIAL AND MANUFACTURING USES ONLY AND IS NOT INTENDED FOR USE IN AREAS WHERE CHILDREN ARE PRESENT. Magnesium sulfate (or magnesium sulphate) is an inorganic salt(chemical compound) containing magnesium, sulfur and oxygen, with the formula MgSO4. It is often encountered as the heptahydrate sulfate mineral epsomite (MgSO4·7H2O), commonly called Epsom salt, taking its name from a bitter saline spring in Epsom in Surrey, England, where the salt was produced from the springs that arise where the porous chalk of the North Downs meets non-porous London clay. The monohydrate, MgSO4·H2O is found as the mineral kieserite. The overall global annual usage in the mid-1970s of the monohydrate was 2.3 million tons, of which the majority was used in agriculture.
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