Description

Maleicanhydridemethylvinylether,Copolymer,Sodiumsalt is a synthetic, water-soluble polyelectrolyte derived from the copolymerization of maleic anhydride and methyl vinyl ether, subsequently converted to its sodium salt form. This compound is valued for its exceptional dispersing, scale inhibiting, and chelating properties in aqueous systems. It is primarily utilized by formulators in the water treatment, detergent, and textile processing industries to control mineral deposits and enhance process efficiency.

Application

• Water Treatment: Acts as a highly effective scale and corrosion inhibitor in cooling water, boiler water, and reverse osmosis systems.
• Detergent & Cleaning Formulations: Functions as a builder and anti-redeposition agent, enhancing cleaning power and preventing soil from re-adhering to fabrics.
• Textile Processing: Used as a dispersant for dyes and pigments and as an anti-scaling agent in dyeing baths.
• Pulp & Paper Industry: Serves as a dispersant and deposit control agent to improve paper quality and mill runnability.
• Industrial Cleaning: Key component in formulations for metal cleaning and acid cleaning where it controls scale formation.
• Oilfield Chemicals: Employed in drilling fluids and production chemicals for its scale inhibition properties.

Basic Information

Product Name	Maleicanhydridemethylvinylether,Copolymer,Sodiumsalt
CAS No.	28133-65-5
Molecular Formula	(C4H2O3·C3H6O·C2H3NaO)x
Molecular Weight	Polymer (variable)
Synonyms	Maleic Anhydride-Methyl Vinyl Ether Copolymer, Sodium Salt; Poly(maleic anhydride-alt-methyl vinyl ether), sodium salt; PMA-MVE copolymer, sodium salt; Dispex® G40 (similar trade product); Sokalan® CP series (similar trade product); Methyl vinyl ether-maleic anhydride copolymer sodium salt; Carboxylic polymer, sodium salt; Water treatment polymer
EINECS	Contact for details

Quality Control

Our Maleicanhydridemethylvinylether,Copolymer,Sodiumsalt is manufactured under a stringent quality management system. Each batch is tested to ensure consistent performance in key parameters such as solids content, viscosity, pH, and specific activity. A comprehensive Certificate of Analysis (COA) detailing purity and performance specifications is provided with every shipment to guarantee reliability and traceability for your industrial processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure the container is securely sealed after each use to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Identification (IR)	Conforms to structure
Solids Content	≥ 90%
pH (1% solution)	6.0 - 8.0
Viscosity (Brookfield)	Contact for details
Residual Moisture	≤ 5.0%

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