PQ Corporation is a leading worldwide producer of specialty inorganic performance chemicals and catalysts.

PQ traces its beginnings to a family soap and candle business started in Philadelphia by Joseph Elkington in 1831.

The company began producing and selling “silicate of soda” or sodiumSodium is a chemical element and is the sixth most abundant ... silicate in 1861 to replace rosin in soap formulations. Today, PQ is the world’s largest producer of soluble silicates.