Instructions for Use of Copolymer of Maleic and Acrylic Acid (MA/AA)

Copolymer of Maleic and Acrylic Acid (MA/AA) is a low molecular weight polyelectrolyte recognized for its excellent scale inhibition and dispersion properties, particularly under high-temperature conditions. Below is a comprehensive guide to its use.

Primary Applications and Performance

MA/AA is widely used in water treatment and other industrial processes due to its specific performance characteristics.

Scale Inhibition and Dispersion: It is highly effective at dispersing carbonate scales and inhibiting the formation of various scales, including phosphate scales . It achieves this through its h3 dispersant properties, making it effective in preventing deposits.

High Thermal Stability: A key feature is its ability to maintain performance under harsh conditions, operating effectively at temperatures up to 300°C . This makes it suitable for high-heat systems.

Synergistic Compatibility: MA/AA exhibits excellent compatibility with other water treatment chemicals, allowing it to be used in combination with agents like organophosphonates for enhanced performance .

Key Industrial Uses:

Industrial Water Treatment: Commonly used in low-pressure boilers, centralized heating systems, central air conditioning systems, and various circulating cooling water systems .

Textile and Printing: Serves as a chelating dispersant in the textile and printing industries .

Recommended Dosage and Application

Typical Dosage: When used in combination with other organophosphonates in water treatment, the standard dosage is generally 2 to 10 mg/L .

Specialized Applications: For use as a textile printing and dyeing auxiliary or a detergent builder, the optimal dosage should be determined through specific experiments .

Product Specifications and Identification

Standard: It is typically produced in accordance with the Chinese standard HG 2229-2018 .

CAS Number: The common CAS number for MA/AA is 26677-99-6 .

Appearance: The product is typically a reddish-brown or amber transparent liquid, with solid content often at or above 48-50% .

pH: A 1% aqueous solution is acidic, with a pH in the range of 2.0 to 3.0 .

Safety and Handling Precautions

MA/AA is an acidic substance, and proper handling is essential for safety.

Hazard Classification: It is classified as a corrosive material that can cause severe skin burns and eye damage .

Protective Measures: During operation, it is crucial to avoid contact with skin and eyes. Appropriate protective clothing, gloves, and eye/face protection should be worn .

First Aid: In case of accidental contact, the affected area should be rinsed immediately with plenty of water. For eye contact, seek medical attention promptly .

Storage: The product should be stored in a cool, dry, and well-ventilated area. Its typical shelf life is 12 months when stored properly .