... filler of detergent, the making of sodium sulphide, water glass, or used in papermaking, glass, dye and used as filler, ... During transportation, keep away from direct sunlight and humidity.5.Sodium Sulphate Anhydrous 99% Factory's Advantages:1.Our factiry is located in ... the international market.3.Our factory passed ISO2000:9001,quality can be control and guaranteed4.We have Five production lines and ...