Chlorine dioxide (ClO2) is used primarily as a bleaching agent in the pulp and paper industry for elemental chlorine free (ECF) bleaching.

Chlorine dioxide has a strong absorption between 350 and 450nm that the Kemtrak DCP007 can measure – from ultra low parts per million concentrations when used for gas detection or disinfection, to high concentration solutions used for the bleaching of pulp (>20 g/L).

The Kemtrak DCP007 can be used to optimize the reaction efficiency of ClO2 generation, improve the control of vent-gas scrubbers to reduce emissions into the atmosphere and for monitoring the final concentration of chlorine dioxide product sent to the bleaching plant.

Chlorine dioxide is an aggressive chemical substance – all wetted parts of the Kemtrak DCP007 flow cell are manufactured from corrosion resistant materials, such as PCTFE, PVC, titanium and sapphire.