Properties and Features:

        1) chlorine-free reductive bleaching agent.

        2) preserves lignins, achieve a high level of pulp yield. It is applicable to various pulps, especially for bleaching of high yield pulp and deinked pulp.

        3) exhibits excellent stability, especially applicable to continuous bleaching at high temperature.

        4) safe and convenient to use, does not result in corrosion problem in contact with equipment, fully biodegradable, accords with ecological standard.

Specifications：

        Appearance：white crystal powder

Application：

        1) Conditions: temperature 60℃ min, pH10～11, the optimal dosage rate for FAS to caustic should be 2:1, retention time 30～60 minutes, bleaching equipment should be sealed.

        2) FAS powder should be dissolved in solution and filled into pulp under alkaline conditions.

        3) The optimal FAS dosage depends on nature of pulp, generally it is between 3~6 kg based on per ton of absolute dry pulp (0.3%~0.6%).

Application Sample：

        1)TMP

              Generally single stage bleaching is employed，brightness gain exceeds 6%。

        2)DIP

              Generally employs two stages bleaching, (H2O2～FAS or FAS～H2O2). Mostly employs H2O2～FAS, brightness improved by 6% min. followed by peroxide bleaching.

Safety and Handling：

        Keep in a cool, ventilated and dry place. Avoid moisture and insolation. Keep away from oxidizing agents.

Packing：

        25 kg net kraft paper bag.