In the laundry industry, technical grade sodium hexametaphosphate is used to dispose soft water for laundry, and the water quality is neutral. Washing clothes in soft water can increase the ability of decontamination and make them cleaner and brighter.

The principle of technical grade sodium hexametaphosphate using industrial sodium hexametaphosphate to soften hard water is that the calcium ion Ca⁺⁺ or magnesium ion Mg⁺⁺, which causes the hardness in water, enters the sodium hexametaphosphate molecule and becomes a very stable soluble complex: Na₂ [Ca₂(PO₃)₆] and Na₂[Mg₂(PO₃)₆], Ca⁺⁺ or Mg⁺⁺ in this complex is not easy to run out.

The technical grade sodium hexametaphosphate product produced by Chongqing Chuandong Chemical (Group) Co., Ltd. is produced from the genuine raw materials obtained by the thermal process of the phosphate rock of its own refined phosphorus mine. The particles are uniform and the impurities are less, less usage.