Hydrosulfite Bleaching

When bleaching thermomechanical pulps with sodium hydrosulfite, VERSENE* 100 chelating agent can increase brightness gains by 2.0 G.E units. VERSENE 100 chelating agent has also been used with refiner hydrosulfite bleaching to gain up to 3.5 G.E. units of additional brightness. If additional brightness gains are not required, addition of chelating agent can reduce the bleaching chemical costs required to maintain current brightness.

Dow Chelating Agents for Hydrosulfite Bleaching Applications
VERSENE 100 chelating agent
VERSENE 100E chelating agent
VERSENE 100 LN chelating agent
VERSENEX* 80 chelating agent
VERSENEX 80E chelating agent

Download literature

®™^* Trademark of The Dow Chemical Company ("Dow") or an affiliated company of Dow