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Send EmailPolyacrylic Acid Maleic Acid Coplymer, Maleic Anhydride-Acrylic Acid Copolymer, Antiscale Dispersant, MA/AA Copolymer, AA-MA, 26677-99-6, 29132-58-9
| Parameter | Description |
|---|---|
| Product Name | Poly(acrylic acid-co-maleic acid) Copolymer |
| Other Names | AA Copolymer, Acrylic Acid Maleic Acid Copolymer, MA/AA Copolymer, Maleic Anhydride-Acrylic Acid Copolymer, Maleic Acid-Acrylic Acid Copolymer, Antiscale Dispersant |
| Chemical Formula | C₇H₈O₆ (repeating unit) |
| Molecular Weight | Variable (depending on degree of polymerization) |
| CAS Numbers | 26677-99-6, 29132-58-9 |
| Chemical Class | Copolymer / Polyelectrolyte / Acrylic-Maleic Copolymer |
| Appearance | Brown-red liquid (aqueous solution) |
| Source | Synthetic (Copolymerization of maleic acid and acrylic acid) |
Description: Poly(acrylic acid-co-maleic acid) copolymer is a low molecular weight polyelectrolyte obtained by the copolymerization of acrylic acid and maleic acid monomers in specific proportions. It is water-soluble and prevents the precipitation of inorganic salts such as carbonates, phosphates, and sulfates, thereby inhibiting scale formation. It has high thermal stability (up to 300°C) and exhibits good compatibility and synergistic effects with other water treatment chemicals. Its main applications include cooling towers, low-pressure boilers, central heating systems, and the textile printing and dyeing industry.
| No | Synonym / Other Name |
|---|---|
| 1 | Poly(acrylic acid-co-maleic acid) |
| 2 | AA Copolymer |
| 3 | Acrylic Acid Maleic Acid Copolymer |
| 4 | Maleic Anhydride-Acrylic Acid Copolymer |
| 5 | Maleic Acid-Acrylic Acid Copolymer |
| 6 | MA/AA Copolymer |
| 7 | Maleic Acid-Acrylalcohol Copolymer |
| 8 | Copolymer of Maleic and Acrylic Acid |
| 9 | 26677-99-6 |
| 10 | 29132-58-9 |
| 11 | Antiscale Dispersant |
| 12 | 2-Butenedioic acid (Z)-, polymer with 2-propenoic acid |
| 13 | (Z)-2-Butenedioic acid, polymer with 2-propenoic acid |
| 14 | Polymer with 2-propenoic acid |
| Parameter | Description |
|---|---|
| Chemical Family | Copolymer / Polyelectrolyte / Acrylic-Maleic Copolymer |
| Monomers | Acrylic Acid (CH₂=CH-COOH) + Maleic Acid (HOOC-CH=CH-COOH) |
| Copolymerization Type | Alternating or block copolymer |
| Functional Groups | Carboxyl groups (-COOH) |
| Ionization | Anionic polyelectrolyte; pH-dependent ionization |
| Structure | Low molecular weight linear copolymer |
Structural Formula:
-[-CH₂-CH-]-[-CH-CH-]ₙ-
| | |
COOH COOH COOH
Poly(acrylic acid-co-maleic acid) Copolymer
Repeating Unit:
C₇H₈O₆
Acrylic Acid (C₃H₄O₂) + Maleic Acid (C₄H₄O₄) → Copolymer (C₇H₈O₆)ₙ
Description: Poly(acrylic acid-co-maleic acid) copolymer is formed by the copolymerization of acrylic acid and maleic acid monomers. Both monomers contain carboxyl groups (-COOH), giving the polymer high anionic character and excellent chelation/dispersion properties. Maleic acid contains two carboxyl groups and provides higher carboxyl density to the polymer chain. This structure enables the copolymer to form stable complexes with calcium, magnesium, and other metal ions, thereby preventing scale formation and precipitation.
| Parameter | Specification | Typical Value | Test Method |
|---|---|---|---|
| Physical State (25°C) | Liquid | - | Visual |
| Appearance | Brown-red liquid | - | Visual |
| Odor | Slight characteristic | - | Organoleptic |
| Chemical Formula | C₇H₈O₆ (repeating unit) | - | - |
| Molecular Weight | Variable | 3,000 – 70,000+ g/mol | GPC |
| Density (20°C) | 1.18 – 1.23 g/cm³ | ~1.23 g/cm³ | ASTM D4052 |
| Freezing Point | -6 – -80°C | -6°C | - |
| Boiling Point | 202°C (760 mmHg) | - | - |
| Vapor Pressure (25°C) | 0.299 mmHg | - | - |
| Refractive Index (n²⁰/D) | ~1.423 | - | ASTM D1218 |
| pH (1% Aqueous Solution) | Variable (neutralized) | 1.5 – 8.0 | USP <791> |
| Water Solubility | Soluble | - | - |
| Organic Solvent Solubility | Limited | - | - |
| Thermal Stability | Up to 300°C | - | TGA |
| Solids Content | ~40 – 50% (grade dependent) | - | - |
| Viscosity (25°C) | 130 – 2,000 cP (grade dependent) | - | Brookfield |
| Parameter | Description |
|---|---|
| Scale Inhibition Mechanism | Chelates calcium, magnesium, and other metal ions; prevents precipitation |
| Dispersion Mechanism | Disperses particles; prevents agglomeration and sedimentation |
| Crystal Distortion | Distorts crystal growth; prevents scale formation |
| Thermal Stability | Stable up to 300°C; effective in high-temperature applications |
| Synergistic Effect | Shows synergistic effects with other water treatment chemicals (organic phosphonates, etc.) |
| Anionic Character | High anionic density; excellent chelation capacity |
Scale Inhibition Mechanism Details:
Chelation: Carboxyl groups of the copolymer form stable complexes with Ca²⁺, Mg²⁺, and other metal ions
Solubility Enhancement: Metal ions are kept in soluble form; precipitation is prevented
Crystal Distortion: Disturbs calcium carbonate (CaCO₃) crystal growth
Dispersion: Disperses formed microparticles; prevents agglomeration and sedimentation
Surface Adsorption: Copolymer adsorbs onto the surface of scale crystals, inhibiting growth
| Industry | Application | Function / Benefit | Typical Dosage |
|---|---|---|---|
| Water Treatment | |||
| Circulating Cooling Systems | Scale inhibition, dispersion | Prevents scale formation | 2 – 10 mg/L |
| Low-Pressure Boilers | Scale inhibition, dispersion | Prevents scale formation | 2 – 10 mg/L |
| Central Heating Systems | Scale inhibition, dispersion | Prevents scale formation | 2 – 10 mg/L |
| Central Air Conditioning Systems | Scale inhibition, dispersion | Prevents scale formation | 2 – 10 mg/L |
| Reverse Osmosis (RO) Systems | Scale inhibition, dispersion | Prevents membrane fouling | 2 – 10 mg/L |
| Textile Industry | |||
| Printing and Dyeing | Chelating dispersant | Binds metal ions; improves color fastness | 0.1 – 1.0% |
| Finishing Processes | Dispersant | Improves dye dispersion | 0.1 – 1.0% |
| Other Industries | |||
| Detergents | Scale inhibitor, dispersant | Improves cleaning efficiency | 0.5 – 5.0% |
| Paper Industry | Dispersant | Improves paper quality | 0.1 – 1.0% |
| Paints and Coatings | Dispersant | Improves pigment dispersion | 0.1 – 1.0% |
| Irrigation Systems | Scale inhibitor | Prevents scale formation in irrigation systems | 2 – 10 mg/L |
| Product | Chemical Nature | Molar Mass (g/mol) | Form | Conc. (%) | Viscosity (mPa·s) | Density (g/cm³) | pH (1% in Water) |
|---|---|---|---|---|---|---|---|
| Sokalan® CP 5 | Maleic acid/acrylic acid copolymer, sodium salt | 70,000 | Liquid | ~40 | 2,000 | 1.30 | 8 |
| Sokalan® CP 5 EcoBalanced | Maleic acid/acrylic acid copolymer, sodium salt | 70,000 | Liquid | ~40 | 2,000 | 1.30 | 8 |
| Sokalan® CP 5 Granules | Maleic acid/acrylic acid copolymer, sodium salt | 70,000 | Granules | ~92 | - | - | 8 |
| Sokalan® CP 9 | Maleic acid/olefin copolymer, sodium salt | 5,000 | Liquid | ~25 | 250 | 1.11 | 11 |
| Sokalan® CP 9 Powder | Maleic acid/olefin copolymer, sodium salt | 5,000 | Powder | >89 | - | - | 11 |
| Sokalan® CP 10 | Polyacrylic acid, modified, sodium salt | 3,500 | Liquid | ~45 | 500 | 1.30 | 8.5 |
| Sokalan® CP 10 S | Polyacrylic acid, modified | 3,500 | Liquid | ~50 | 150 | 1.17 | 1.5 |
| Sokalan® CP 12 S | Maleic acid/acrylic acid copolymer | 3,000 | Liquid | ~50 | 130 | 1.24 | 1.5 |
| Sokalan® CP 13 S | Polyacrylic acid, modified | 20,000 | Liquid | ~25 | 200 | 1.20 | 2 |
| Sokalan® CP 20 | Maleic acid/olefin copolymer, sodium salt | 5,000 | Liquid | ~40 | <500 | 1.20 | 7.5 |
| Sokalan® CP 45 Granules | Maleic acid/acrylic acid copolymer, sodium salt | 70,000 | Granules | ~92 | - | - | 4 |
| Sokalan® CP 50 | Polyacrylic acid, modified, sodium salt | 20,000 | Liquid | ~40 | 350 | 1.20 | 5 |
| Sokalan® CP 50 EcoBalanced | Polyacrylic acid, modified, sodium salt | 20,000 | Liquid | ~40 | 350 | 1.20 | 5 |
| Sokalan® CP 50 Granules | Polyacrylic acid, modified, sodium salt | 20,000 | Granules | >90 | - | - | 5 |
| Advantage | Description |
|---|---|
| High Thermal Stability | Maintains efficacy up to 300°C |
| Excellent Scale Inhibition | Prevents precipitation of various salts including carbonates, phosphates, and sulfates |
| Broad Spectrum | Effective against calcium, magnesium, iron, manganese, and other metal ions |
| Low Dosage | Effective at low concentrations of 2-10 mg/L |
| Synergistic Effect | Shows synergistic effects with other water treatment chemicals (organic phosphonates, polyphosphates) |
| High Temperature Resistance | Effective in systems operating at high temperatures |
| Environmentally Friendly | Biodegradable; phosphorus-free |
| Compatibility | Good compatibility with other water treatment chemicals |
| Wide pH Range | Effective across a wide pH range |
| Corrosion Inhibitor Compatibility | Can be used with corrosion inhibitors |
| Parameter | Recommendation |
|---|---|
| Dosage (Water Treatment) | 2 – 10 mg/L (active basis) |
| pH Range | 5.0 – 9.0 (optimal) |
| Temperature Range | 20 – 300°C |
| Application Method | Continuous dosing or periodic dosing |
| Storage Temperature | 5 – 40°C (protect from freezing) |
| Mixing | Added to water with good mixing |
| Combination with Other Chemicals | Can be combined with organic phosphonates, polyphosphates, corrosion inhibitors |
| Dilution | Can be diluted with water before use |
| Pre-Compatibility Test | Pre-compatibility test with other chemicals should be performed |
| Region / Authority | Status | Description |
|---|---|---|
| European Union | Permitted | Permitted for use as water treatment chemical |
| Turkey | Permitted | Compliant with EU legislation |
| USA (FDA) | Permitted | Permitted for food contact applications |
| Japan | Permitted | Approved as water treatment chemical |
| Canada | Permitted | Health Canada approved |
| REACH | Registered | Compliant with EU chemical regulations |
| Parameter | Assessment |
|---|---|
| Acute Oral Toxicity (LD50) | > 2,000 mg/kg (low toxicity) |
| Acute Dermal Toxicity | Low toxicity |
| Skin Irritation | May be irritating (acidic form) |
| Eye Irritation | May cause severe irritation (acidic form) |
| Skin Sensitization | Low potential |
| Carcinogenicity | Not classified (IARC, NTP) |
| Mutagenicity | Not mutagenic |
| Reproductive Toxicity | Not classified |
| Aquatic Toxicity | Low – Moderate |
| Biodegradability | Biodegradable |
GHS Classification (Acidic Form):
R34 – Causes burns
R35 – Causes severe burns
Safety Recommendations:
S26: In case of eye contact, rinse immediately with plenty of water and seek medical advice
S36/37/39: Wear suitable protective clothing, gloves, and eye/face protection
S45: In case of accident, seek medical advice
S27: Remove all contaminated clothing immediately
S23: Do not breathe vapor
| Parameter | Information |
|---|---|
| Storage Temperature | 5 – 40°C (protect from freezing) |
| Storage Conditions | Cool, dry, well-ventilated area |
| Container Requirements | Sealed containers; protect from direct sunlight |
| Protect From | Freezing, excessive heat, strong oxidizing agents |
| Freezing Point | -6°C (do not freeze) |
| Shelf Life | 12 – 24 months (under proper storage) |
| Degradation Signs | Precipitation, color change, odor change, viscosity change |
| Compatibility | Compatible with most water treatment chemicals |
| Certificate / Standard | Status | Description |
|---|---|---|
| ISO 9001:2015 | Certified | Quality management system |
| ISO 14001:2015 | Certified | Environmental management system |
| FDA 21 CFR | Compliant | Food contact applications |
| REACH | Registered | EU chemical regulation compliance |
| Certificate of Analysis (COA) | Provided with each batch | Includes binding specifications |
| Safety Data Sheet (SDS) | Available | Current 16-section document |
| Technical Data Sheet (TDS) | Available | Comprehensive technical information |
| GMP | Compliant | Manufacturing quality standards |
| Item | Description |
|---|---|
| Information Purpose | This Technical Data Sheet (TDS) is for informational purposes only and does not constitute a binding specification. |
| Typical Values | Values stated herein are based on typical laboratory results and may vary slightly between batches. |
| Binding Data | For binding specifications, the Certificate of Analysis (COA) for each batch should be requested. |
| User Responsibility | The user is solely responsible for determining the suitability of the product for the intended application and ensuring compliance with all applicable regulations. |
| SDS Requirement | A current Safety Data Sheet (SDS) should be requested from the supplier prior to use. |
| Safety Information | Safety information in this document is based on current knowledge but does not constitute a guarantee of the product's health and safety risks. |
| Regulatory Changes | The user is responsible for monitoring local and international regulatory changes. |
| Product Quality | Product quality is guaranteed in accordance with the standards specified in this document. |
| License / Patents | This document does not grant any license or patent rights for use of the product. |
| Side Effects | Acidic form may cause skin and eye irritation; appropriate protective measures should be taken. |
DISCLAIMER (LEGAL NOTICE): This Technical Data Sheet (TDS) is for informational purposes only and does not constitute a binding specification. The values stated herein are based on typical laboratory results. The user is solely responsible for determining the suitability of the product for the intended application and for ensuring compliance with all local regulations. A current Safety Data Sheet (SDS) and Certificate of Analysis (COA) should be requested prior to use. Acidic form may cause skin and eye irritation; appropriate protective measures should be taken. This document does not grant any license or patent rights for use of the product.