Product Details


Acrylic Acid-2-Hydroxypropyl Acrylate Copolymer (T-225)

Acrylic Acid-2-Hydroxypropyl Acrylate Copolymer (T-225) is a copolymer of polyacrylic acid and hydroxypropyl acrylate. It has good scale inhibition and dispersion properties to calcium phosphate and calcium, making it suitable for use in circulating cooling water under alkaline conditions and with the presence of more phosphate. T-225 has a CAS No. 55719-33-0, an appearance of colorless to light yellow viscous liquid, and a solid content of 30.0% min with free monomer (as AA) at 0.5% max. It is also known as AA/HPA, 2-Propenoic acid 2-hydroxypropyl ester polymer with 2-propenoic acid, Acrylic Acid-2-Hydroxypropyl Acrylate Copolymer (T-225), Acrylic Acid-2-Hydroxypropyl Acrylate CopolyMer (T-225), and T-225.

Product Description

CAS No. 55719-33-0

Structural Formula:

Acrylic Acid-2-Hydroxypropyl Acrylate Copolymer (T-225) Structural Formula


T-225 is an advanced copolymer of polyacrylic acid and hydroxypropyl acrylate. It offers exceptional scale inhibition and dispersion properties against key antagonists such as calcium phosphate, calcium carbonate, ferric oxide sludge, clay, and grease. This product can be used in high pH situations with excellent compatibility with other organophosphines and BTA. Additionally, T-225 provides optimum results with its ability to withhold sediments of zinc salt and calcium phosphate effectively. Its performance remains even under high temperatures and alkaline conditions for outstanding results.


AppearanceColorless to pale yellow transparent liquid
Solid content, %30.0 min30.0 min
Free monomer (as AA ), %0.5 max0.5 max
pH(1% water solution)7.5±1.02.5±0.5
Density (20℃), g/cm31.10 min


T-225 can be used in circulating cool water systems with high alkalinity and phosphate levels. It is an effective scale inhibitor and dispersant for heaters, non-column evaporators, boilers, circulating cool water and dirty refilling oilfields with a calcium content. The dosage should be between 10-30mg/L for optimal results. T-225 can also be combined with organophosphines to form a full organic alkaline formula.

Packaging and storage instructions for T-225

As per customer requirements, include 200L plastic drums or IBC (1000L) containers. The product must be stored in a dry, shaded area for up to one year to maintain its efficacy.

Frequently Asked Questions

Acrylic Acid-2-Hydroxypropyl Acrylate Copolymer (T-225)

What is T-225?

T-225 is a synthetic polymer that is used in a variety of industrial and commercial applications. It is a copolymer of acrylic acid and 2-hydroxypropyl acrylate.

What are the properties of T-225?

T-225 has several unique properties that make it useful for various applications. It is a white, powdery solid that is insoluble in water. It is also non-toxic and has a low melting point.

What are the uses of T-225?

T-225 can be used in a variety of industries and applications. It is commonly used as an additive in adhesives, coatings, and sealants. It is also used to produce plastics, rubbers, and textiles.

How does T-225 work?

T-225 works by providing a number of benefits to the products in which it is used. For example, it can improve adhesive adhesion, cohesion, and flexibility. It can also improve the durability and abrasion resistance of coatings and sealants.

What are the benefits of T-225?

The benefits of T-225 depend on the specific application in which it is used. However, some general benefits include improved product performance, increased efficiency, and reduced costs.

Are there any risks associated with T-225?

There are no known risks associated with T-225. However, as with any synthetic polymer, there is always the potential for unknown risks to emerge over time.

What precautions should be taken when using T-225?

As with any synthetic polymer, precautions should be taken to avoid inhalation or contact with skin or eyes. In case of contact, flush affected area with water for 15 minutes and seek medical attention if irritation persists. If inhaled, remove to fresh air and seek medical attention if necessary.

How should T-225 be stored?

T-225 should be stored in a cool, dry place out of direct sunlight

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