PQ is North America's leading provider of magnesium sulfate products. We manufacture a heptahydrate crystal (MgSO4·7H2O), commonly known as Epsom salt, as well as solutions of various concentrations.
PQ's process, with rigorous testing and quality control procedures, results in product appearance and quality that sets a standard for the industry.
Our magnesium sulfate heptahydrate, or Epsom salt, is available in USP, Technical and Agricultural grades along with our proprietary MagnaGrow® brand that growers across North America have come to rely on for horticultural applications. We also manufacture our proprietary JumboGems®, extra large crystals, preferred for bath salt applications.
Magnesium sulfate solutions of various concentrations from 27% to 20% are also available including our proprietary MagnaBrite® magnesium sulfate solution that has become a standard in the pulp & paper industry.
Contact us for a product recommendation and technical support for your application.