Description

Poly(Maleic Anhydride) is a synthetic polymer derived from maleic anhydride, characterized by a backbone containing multiple anhydride and carboxylic acid functionalities. This unique structure provides excellent scale inhibition, dispersancy, and chelating properties, making it a critical performance additive in water treatment and industrial processes. It is essential for manufacturers and formulators in the water treatment, detergent, textile, and paper industries seeking to control mineral scale, stabilize formulations, and improve process efficiency.

Application

• Industrial Water Treatment: A highly effective threshold inhibitor and dispersant for calcium carbonate, calcium sulfate, and barium sulfate scale in cooling water, boiler water, and reverse osmosis systems.
• Detergent & Cleaner Formulations: Acts as a builder and co-builder, enhancing cleaning power by sequestering hardness ions (Ca²⁺, Mg²⁺) and preventing inorganic salt deposition.
• Pulp & Paper Processing: Used as a dispersant and deposit control agent to improve pulp bleaching efficiency and prevent pitch and scale deposition on machinery.
• Textile Auxiliary: Serves as an anti-redeposition agent and dispersant in dyeing and scouring processes to improve color fastness and fabric quality.
• Oilfield Chemicals: Employed in scale inhibitor formulations for squeeze treatments and production chemicals to control mineral scales in downhole and topside equipment.
• Construction Chemicals: Functions as a superplasticizer and grinding aid in cement admixtures to improve fluidity and reduce water content.

Basic Information

Product Name	Poly(Maleic Anhydride)
CAS No.	24937-72-2
Molecular Formula	(C4H2O3)n
Molecular Weight	Varies (Polymer)
Synonyms	Polymaleic Acid (Hydrolyzed Form); Maleic Anhydride Homopolymer; PMA; Poly(maleic acid); Hydrolyzed Poly(maleic anhydride); 2,5-Furandione, homopolymer; Belclene 200; Sokalan CP series (related polymers)
EINECS	246-538-9

Quality Control

Our Poly(Maleic Anhydride) is manufactured under a strict quality management system. Each batch is tested to ensure consistent performance in key parameters such as solid content, molecular weight distribution, acidity, and scale inhibition efficiency. Certificates of Analysis (COA) documenting these specifications are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Light yellow to amber viscous liquid or solid
Solid Content	≥ 48.0 %
pH (1% aqueous solution)	2.0 - 3.0
Density (20°C)	1.18 - 1.22 g/cm³
Viscosity (25°C)	Contact for details
Calcium Chelating Value	≥ 300 mg CaCO₃/g

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.