OCH 351 is an excellent reverse osmosis de-chlorinator. It is based on sodium metabisulphite and is used for the elimination of residual chlorine prior to RO membrane systems. This is necessary because some membrane materials can be irreversibly damaged by the presence of strong oxidising agents such as chlorine.
Sodium metabisulphite can also be used to preserve certain membrane types during storage or periods of plant shut down.

 Product benefits:

Rapid reaction with chlorine.

Protects polyamide membranes from degradation.

Safe and simple to use.

High level of active bisulphite.

Can be used to protect membranes in storage.