What is Polyacrylic Acid ?
Polyacrylic Acid, also known as PAA, is a synthetic polymer of acrylic acid with the general formula (C₃H₄O₂)n and CAS number 9003-01-4. It is widely used as a dispersing agent, thickener, suspending agent, scale inhibitor, and chelating aid in water treatment, detergents, paints, coatings, textiles, cosmetics, and industrial formulations. Polyacrylic acid is commonly supplied as an aqueous solution or powder, with different molecular weights and solid contents depending on application needs.
Product Summary
Polyacrylic Acid, PAA, CAS 9003-01-4, is an anionic, water-soluble acrylic polymer used across industrial and formulation sectors. Its carboxylic acid groups help provide dispersion, viscosity modification, scale control, water retention, and metal-ion binding performance. PAA is suitable for applications such as cooling-water treatment, detergent formulations, pigment dispersion, textile processing, adhesives, coatings, ceramics, and superabsorbent or hydrogel-related uses, depending on grade and molecular weight.
Product Description
Polyacrylic Acid is a versatile acrylic polymer used where dispersion, thickening, suspension, scale inhibition, or water retention is required. It is valued for its ability to interact with water and ions, making it useful in water-treatment chemicals, detergent builders, paint and coating additives, textile auxiliaries, and specialty industrial formulations.
Commercial PAA products are available in multiple forms, including powder and aqueous solutions. Supplier listings show common variants such as 35 wt.% and 50 wt.% aqueous solutions with different average molecular weights, so specifications should be selected according to the end-use requirement.
CAS No: 9003-01-4HS Code: 3906Formula: ( C H 2 − C H C O 2 H )Product Code: ZEELCHEM™ 1000
Explanation of Polyacrylic Acid:
Polyacrylic Acid, known as ZEELCHEM™ 1000, is a non-toxic and highly soluble polymer in water, making it an excellent choice for various industrial applications. Its unique properties allow it to function effectively in alkaline environments and at high concentrations without leading to the formation of scale deposits, which can be a significant issue in many processes. This versatile compound is particularly adept at dispersing microcrystals or micro sand derived from calcium carbonate, calcium phosphate, and calcium sulfate, thereby enhancing the efficiency of systems where these substances may cause problems. ZEELCHEM™ 1000 is widely utilized as both a scale inhibitor and a dispersant across a range of industries, including to circulating cooling water systems, paper production, textile weaving, dyeing processes, ceramics manufacturing, and painting applications. Its ability to maintain fluidity and prevent sedimentation makes it an invaluable additive in these fields, ensuring smoother operations and improved product quality.
Technical Product Details
|
Parameter |
Product Details |
|
Product Name |
Polyacrylic Acid |
|
Common Name |
PAA |
|
CAS Number |
9003-01-4 |
|
General Formula |
(C₃H₄O₂)n |
|
Product Type |
Acrylic acid polymer |
|
Appearance |
Clear to pale-yellow liquid or white/off-white powder, depending on grade |
|
Solubility |
Water-soluble or water-dispersible, depending on molecular weight and form |
|
Ionic Nature |
Anionic polymer |
|
Available Grades |
Industrial grade, water-treatment grade, detergent grade, coating grade, formulation grade |
|
Typical Supply Forms |
Aqueous solution or powder |
|
Main Functions |
Dispersant, thickener, suspending agent, scale inhibitor, chelating aid, binder/formulation additive |
Key Benefits
- Excellent scale inhibition performance
- Effective dispersant for calcium carbonate, calcium sulfate, and calcium phosphate
- Suitable for cooling water systems, boilers, RO pretreatment, and industrial process water
- Helps improve heat-transfer efficiency by reducing scale deposits
- Water-soluble and easy to dose
- Available in different active-content grades such as 30%, 40%, 50%, or customized concentration, depending on supplier specification
Key Features
- Effective dispersing agent for pigments, minerals, and suspended solids
- Useful as a scale inhibitor in water-treatment systems
- Helps improve viscosity, suspension, and stability in formulations
- Supports chelating and anti-redeposition performance in detergents and textile processing
Available in different molecular weights and solid contents for customized applications
Applications:
Water Treatment:
Used in cooling-water systems, boilers, and industrial water-treatment formulations as a dispersant and scale-control additive.
Detergents & Cleaning Products:
Helps improve anti-redeposition and metal-ion control performance in detergent systems.
Paints, Coatings & Pigments:
Functions as a pigment dispersant by helping separate particles and improve formulation stability.
Textile Processing:
Used as a chelating and anti-redeposition aid in scouring, bleaching, and textile auxiliary formulations.
Cosmetics & Personal Care:
Certain polyacrylic acid derivatives are used as thickening, suspending, and emulsifying agents in cosmetics and pharmaceutical-type formulations.
Adhesives, Ceramics & Industrial Formulations:
Used where controlled dispersion, binding, or viscosity modification is required.
Recommended Dosage
The dosage of Polyacrylic Acid depends on water quality, system design, hardness, pH, temperature, and equipment material. As a general reference, when used alone, many suppliers recommend 1–15 mg/L for circulating cooling water systems. Final dosage should be optimized through water analysis and field testing.
Package and Storage:
60 kg Carboy or 240 kg Drum. Maintain storage in a cool, dry, and shaded environment for one year.
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Frequently asked questions
Here are some common questions about our product.
Polyacrylic Acid is used as a scale inhibitor and dispersant in water treatment. It helps prevent and disperse mineral scale such as calcium carbonate, calcium sulfate, and calcium phosphate.
Yes. Polyacrylic Acid is water-soluble, making it suitable for liquid dosing in industrial water treatment systems.
The CAS number of Polyacrylic Acid is 9003-01-4.
A common reference dosage is 1–15 mg/L when used alone, but the exact dosage should be based on water analysis and system conditions.
Yes. PAA is widely used in circulating cooling water and cooling tower systems as a scale inhibitor and dispersant.
No. Polyacrylic Acid is the acid form, while Sodium Polyacrylate is the sodium salt form. Both are acrylic polymers, but they differ in neutralization, solubility behavior, swelling, pH, and application performance.
Polyacrylic Acid is used in water treatment, detergents, paints and coatings, textiles, paper, ceramics, cosmetics, pharmaceuticals, adhesives, construction chemicals, and specialty industrial formulations.
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