... inhibitor, high temperature reagent an Mainly used for soft water boiler, printing and dyeing agent, paper dispersant, corrosion inhibitor, ... 0.0003% max. Fluoride, as F---------------------------0.003% max. Water insoluble -----------------------0.06% max. Property: 1. Appearance: White ... , and used as a water softening agent in solution for printing, dyeing, and boiler, as diffusant in papermaking; ...