Description

2,5-Furandione, Homopolymer, Sodium Salt is a water-soluble polyanionic polymer derived from maleic anhydride. This compound matters as a versatile and effective dispersant, scale inhibitor, and chelating agent in aqueous systems. Industries that need it include water treatment, detergent and cleaning product formulation, textile processing, and as a potential building block in specialty polymer synthesis.

Application

• Water Treatment: Acts as a highly effective threshold scale inhibitor for calcium carbonate and calcium sulfate, and as a dispersant for suspended solids and iron oxides in cooling water, boiler water, and reverse osmosis systems.
• Detergent & Cleaner Formulation: Serves as a superior builder and co-builder, enhancing cleaning power by sequestering hardness ions (Ca²⁺, Mg²⁺) and preventing soil redeposition in laundry detergents, dishwashing liquids, and industrial cleaners.
• Textile & Dyeing Auxiliary: Used as a dispersing agent for dyes and pigments, and as a chelating agent to control metal ions that can interfere with dyeing processes, improving color fastness and uniformity.
• Paper & Pulp Industry: Functions as a dispersant and deposit control agent to improve pulp processing, paper sheet formation, and to control pitch and stickies.
• Construction Chemicals: Employed as a superplasticizer and water-reducing agent in concrete admixtures to improve workability and strength.
• Oilfield Chemicals: Utilized in drilling muds and production chemicals as a scale inhibitor and dispersant to control mineral deposition.
• Personal Care: Can be used as a chelating agent and viscosity modifier in certain cosmetic and personal care formulations.
• Industrial Cleaning: Effective in metal cleaning and surface treatment formulations for its sequestering and dispersing properties.

Basic Information

Product Name	2,5-Furandione, Homopolymer, Sodium Salt
CAS No.	70247-90-4
Molecular Formula	(C4H2O3)n • xNa
Molecular Weight	Contact for details (Polymer)
Synonyms	Sodium polymaleate; Polymaleic acid sodium salt; Maleic acid homopolymer sodium salt; PMA-Na; Poly(sodium maleate); Sokalan® CP series (BASF); Dispex® G40; Belclene® 200; CAS 70247-90-4; Poly(maleic acid), sodium salt
EINECS	Contact for details

Quality Control

Our 2,5-Furandione, Homopolymer, Sodium Salt is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent performance and compliance with relevant industry specifications. Certificates of Analysis (COA) documenting key parameters such as active content, pH, viscosity, and residual monomers are available upon request. We can supply grades suitable for various applications, including those aligned with industrial and water treatment standards.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive). Store in a cool, dry, well-ventilated area at room temperature (15-25°C/59-77°F). Keep the container tightly sealed when not in use to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	Light yellow to amber viscous liquid or solid
Active Content (Solid)	≥ 48.0%
pH (1% aqueous solution)	6.0 - 8.0
Viscosity (Brookfield, 25°C)	Contact for details
Density (25°C)	~1.2 g/cm³ (Liquid)
Residual Maleic Acid	≤ 1.0%

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