INCOPA members produce two types of inorganic coagulant products:

  • Aluminium salts. Aluminium is able to react as a base or as an acid to form both acidic and alkaline salts. They are usually white or clear like water.
  • Iron salts. Iron can form both bivalent and trivalent salts. While bivalent salts are used as a raw material for trivalent products, they can also be applied directly to water.

The range of specific properties enables coagulant users to find the best product or combination of products for their specific water treatment application. For example, coagulants can be:

  • Sulfate or chloride
  • Solids or liquids. The majority are in aqueous solution including aluminium sulfate or ferric chloride.
  • Acidic or alkaline. Aluminium salts such as poly aluminium chloride have a certain level of alkalinity which is deliberately engineered.
  • Able to bond with different numbers of atoms (two or three valence). Iron salts can be applied in two valences: ferric or ferrous.

All coagulants are corrosive and should be handled according to the safety instructions provided with each product. When used in accordance with the manufacturer’s instructions, coagulants have no effect on human health or the environment.