Description

2-Butenedioic Acid (Z)-, Polymer With Methoxyethene, Sodium Salt is a synthetic, water-soluble polymer derived from maleic acid and methyl vinyl ether. This compound is valued for its excellent dispersing, chelating, and scale-inhibiting properties in aqueous systems. It is primarily utilized by formulators in the water treatment, detergent, and textile processing industries where control of mineral scales and sequestration of metal ions are critical.

Application

• Water Treatment: Acts as a highly effective antiscalant and dispersant in cooling water, boiler water, and reverse osmosis systems to prevent deposits of calcium carbonate, calcium sulfate, and barium sulfate.
• Detergent & Cleaner Formulations: Functions as a builder and co-builder, enhancing cleaning power by sequestering water hardness ions (Ca²⁺, Mg²⁺) and preventing soil redeposition.
• Textile Processing: Used as a dispersing agent in dyeing processes and as a scale inhibitor to protect equipment in wet processing.
• Pulp & Paper Industry: Serves as a dispersant and chelant in pulp bleaching and papermaking processes to improve brightness and process efficiency.
• Oilfield Chemicals: Employed in scale inhibition formulations for downhole and topside applications to maintain well productivity and flow assurance.
• Industrial Cleaning: A key component in acidic and alkaline cleaning formulations for industrial equipment and membranes, where it controls metal ions and inhibits scale formation.

Basic Information

Product Name	2-Butenedioic Acid (Z)-, Polymer With Methoxyethene, Sodium Salt
CAS No.	26300-19-6
Molecular Formula	(C4H4O4·C3H6O)x·xNa
Molecular Weight	Contact for details
Synonyms	Maleic Acid, Polymer with Methyl Vinyl Ether, Sodium Salt; Poly(maleic acid-co-methyl vinyl ether), sodium salt; PMVE/MA, Sodium Salt; Methyl Vinyl Ether/Maleic Acid Copolymer, Sodium Salt; PVME/MA, Na Salt; Dispex® G40 (historical/trade); Sokalan® CP series related polymers.
EINECS	247-148-4

Quality Control

Our production of 2-Butenedioic Acid (Z)-, Polymer With Methoxyethene, Sodium Salt adheres to stringent quality management protocols. Each batch is tested to ensure consistent performance characteristics such as solids content, viscosity, pH, and specific dispersancy/chelating value. A comprehensive Certificate of Analysis (COA) detailing these parameters is provided with every shipment to guarantee product integrity and traceability.

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 material is hygroscopic (moisture-sensitive). Keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture, which may affect handling and performance properties.

Specification

Item	Specification
Appearance	Light yellow to amber viscous liquid or solid
Solids Content	Contact for details
pH (as supplied or solution)	6.0 - 8.0
Viscosity	Contact for details
Specific Gravity	~1.2 - 1.3
Residual Monomer	< 0.5%

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