Used for soap synergist and preventing soap grease from separating out and frosting. It has strong emulsifying effect on lubricating oil and fat, and can be used to adjust the Ph value of buffer soap solution. Water softener for industrial water. Pre-tanning agent for tanning. Dyeing auxiliaries. Used as dispersant when preparing suspension in paint, kaolin, magnesium oxide, calcium carbonate and other industries. Drilling mud dispersant. Paper industry is used as anti-oil stain agent..