... Light is white monotonic crystal or amorphous powder,non-toxic, tasteless.The relative density of ... pigment, paint, fireproofpaint, printingink, ceramics, cosmetiics,t oothpaste, some daily chemical and Medical supplies. Food-grade light magnesium ... carbonate can produce flour additives, dryer, color fixative, carrier, anti-caking agent. (Food grade) Magnesium Carbonate powder ...