(1) Fabric and textile industry used as a fixing agent for direct and reactive dyes; Used as an antistatic agent (2) Metal surface treatment It is used as a metalworking lubricant additive and metal chelating agent (3) Ink printing It is used as ink color enhancer, anti-fading and waterproofing (4) For electronic materials All kinds of cleaning agents and resist additive (5) Water treatment It can be used in the production of new water treatment agents (6) Pharmaceutical intermediates