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KR-191 Antiscalant and Dispersant for RO Membrane


KR-191 is mainly used in RO membrane system, it can be used as antiscalant and anti-choking agent in high salt water and drinking water. It has the following properties:

1. Used in many water quality system, high scale inhibition ability.

2. Lower scale deposit and reduce RO pipeline cleaning frequency.

3. Reduce or replace the acid fill treatment.

4. Good economic effect.

5. Suitable for all RO pipeline type, and as an effective ferrium insulator.

6. Stable and effective than calgon(SHMP).

7. High water flux density for RO pipeline.


AppearanceLight yellow transparent liquid
pH(1% water solution)10.0-11.0
Density (20℃), g/cm31.16-1.36
SolubilitySoluble well in any ratio

Package and Storage:

200L plastic drum,IBC(1000L),customers’ requirement. It can be stored for one years.

Usage Method:

For best effective, KR-191 should be added before static mixer or cylindric filter, the dosage of 1-4mg/L is expected, it can be diluted by RO liquid or by deionized water.

Notes: extra or insufficient dosage will do harm to the RO membrane.