... F ≤%0.003Water insoluble ≤%0.05Application: Used as main auxiliary of synthetic wash, soap synergistic agent, water softener, leather pre- ... tanning agent, dye auxiliary agent, and dispersant of suspension such as paint, kaolin, magnesium oxide, calcium carbonate ... It should be stored in a ventilative and dry warehouse instead of in the open air, kept away from water, moisture ...