NASIL^® sodium silicate is present in recycled paper bleaching and de-inking processes and in the production of paper pulp. It is the main stabiliser of hydrogen peroxide which is used as an efficient and economical bleaching agent.

NASI^L® 3.3 sodium silicate in solution is preferred for mechanical pulp bleaching operations and paper de-inking processes.

In de-inking processes NASIL^® 3.3 helps separate the ink particles from the paper fibres and favours their suspension in the aqueous medium where the de-inking process takes place. At the same time, it keeps the alkaline pH constant during the entire de-inking process and prevents destabilisation of the hydrogen peroxide.