Purifeed (powder, granular)

Purifeed is used as builder for detergent (clothes, dishwasher). Its layered crystalline structure brings Purifeed advantages compared to usual sodium silicate powder.
As its advantages, it easily captures multivalent ions in soft water, and it hardly causes caking or scaling. Because, softener use, Purifeed changes into substances existing in nature, it has little effect on the natural environment.

Product overview

Generic names Crystalline layered sodium silicate
Chemical formula δ-Na2O・2SiO2
Packing /
shipping method
Flexible containers and paper bags
  • Granulated
  • Powdered
General applications
  • Multifunctional builder (washing agent)
  • Civil engineering additives (alkali stimulant)
  • Rust-resistant alkali chemicals
  • Raw material for silica

Special characteristics

  • Capable of maintaining almost the same pH value with high pH buffer capacity, while preventing pH from lowering by fatty acid or other contamination.
  • It is used as a chelating agent, because it captures multivalent metal ions by ion exchange in the water.
  • Compare to other chelating agents, there is no cause for concern about eutrophication of lakes and marshes, low degradability, and carcinogenicity.