IR-191 RO Antiscalant and Dispersant


IR-191 is mainly used in the RO membrane system. It can be used as an antiscalant and anti-choking agent in high saltwater and drinking water. It has the following properties.

  1. Used in many water quality systems, good 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 types, 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 Value (1% water solution)10.0-11.0
Density (20℃), g/cm31.16-1.36
SolubilitySoluble well in any ratio


IR-191 should be added before a static mixer or cylindric filter for the best effectiveness. A dosage of 1~4mg/L is expected. It can be diluted by RO liquid or deionized water.

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

Packing and Storage:

25kg barrel or confirmed by clients. It can be stored for one year.

25kg plastic barrel


Contact us if you want to get the latest IR-191 price and download IR-191 SDS/MSDS.