Kalumin potassium aluminate

DEQUACHIM specialises in the production and marketing of aluminium salts in solution.

Potassium aluminate, manufactured and marketed under the name Kalumin, is a highly basic inorganic coagulant prepared from aluminium hydroxide (ATH) and potassium hydroxide.

Kalumin potassium aluminate​
building under construction showing its concrete structure

Kalumin is recommended for the treatment of wastewater or industrial effluents (to remove suspended solids (SS), phosphates, magnesium, silicates, etc. among other applications).

This type of aluminium-based coagulant improves flocculation but is also used in other sectors:

  • In construction, as a concrete setting accelerator and as a hardening agent, especially when work is carried out in winter or during periods of frost
  • In the paper industry to increase the pH level
  • In the pigment industry
  • In the production of catalysts
  • In the pharmaceutical industry

Kalumin is a filtered solution, clear, slightly yellowish and low in iron.

In order to meet the needs of our customers, we offer different concentrations.

Numerous advantages


Kalumin can be packaged in bulk or in smaller packages such as IBCs.


  • Treatment of drinking water
    • Coagulation & flocculation
  • Municipal or industrial wastewater treatment
    • Coagulation & flocculation
    • Phosphate removal & clarification
  • Paper industry: neutralisation & flocculation, bonding, retention agent and pH adjustment agent
  • Construction: accelerator and additive for concretes and cements/hardening agent
  • Pigments: surface treatment
  • Pharmacy: formulation
  • Catalysts: alumina manufacture