Acrylic Acid-2-Hydroxypropyl Acrylate Copolymer
T-225 or AA/HPA
CAS Number: 55719-33-0
T-225 is copolymer of polyacrylic acid and hydroxypropyl acrylate, it has good scale inhibition and dispersion properties to calcium phosphate and calcium carbonate, it has good dispersion properties to ferric oxide sludge, clay and grease. T-225 can be used under high pH situation and has good compatibility with other organophosphines and BTA, T-225 can effectively withhold sediments of zinc salt and calcium phosphate, it has good scale inhibition and dispersion properties under high temperature and alkaline situations.
T-225 can be used in circulating cool water system in situation of alkaline and excess of phosphate. It can be used as scale inhibitor and dispersant for heater, none-column evaporator boiler, circulating cool water and oilfield dirty refilling water with high calcium content. The dosage of 10~30mg/L is preferred. It can be built with organophosphines to form full organic alkaline formula.
Colorless to pale yellow viscous liquid
Solid content (%)
Free Monomer (Calculate based on the CH2=CH-COOH) Content,%
PH (1% solution)
Density (20°C), g/cm3
Limiting Viscosity （30°C），dl/g
Package and Storage:
Normally in 200L HDPE drum or 1000L IBC.
Storage for 12 months in room shady and dry place.
Avoid contact with eye and skin, once contacted, flush with water.