Description

Polymer With 1,2-Ethanediol, 2,5-Furandione, 1,3-4-Benzenedicarboxylic Acid CAS NO 31742-81-1 is a high-performance, water-soluble polyester copolymer synthesized from ethylene glycol, maleic anhydride, and trimellitic acid. This polymer is engineered to deliver exceptional dispersing and chelating properties, making it a critical additive for controlling scale and particulate matter in complex aqueous systems. It is primarily utilized by the water treatment, detergent, and textile processing industries where superior sequestration of metal ions and inhibition of inorganic deposits are required for operational efficiency and equipment longevity.

Application

• Industrial Water Treatment: Acts as a highly effective scale and corrosion inhibitor in cooling towers, boilers, and reverse osmosis (RO) systems, particularly for calcium carbonate and sulfate scales.
• Detergent & Cleaning Formulations: Functions as a superior builder and sequestrant, enhancing cleaning power by inactivating water hardness ions (Ca²⁺, Mg²⁺) and preventing soil redeposition.
• Textile Processing: Used as a dispersing agent in dyeing and printing processes to improve color uniformity and prevent spotting caused by metal ion impurities.
• Pulp & Paper Manufacturing: Serves as a dispersant and chelant in bleaching and papermaking processes to control metal ions that can degrade pulp quality and bleach efficiency.
• Oil Field Chemicals: Employed in scale inhibition formulations for downhole and topside applications to prevent mineral scale formation in production equipment.
• Industrial & Institutional (I&I) Cleaners: A key component in liquid and powder cleaners for hard surface cleaning, providing superior soil suspension and rinseability.

Basic Information

Product Name	Polymer With 1,2-Ethanediol, 2,5-Furandione, 1,3-4-Benzenedicarboxylic Acid
CAS No.	31742-81-1
Molecular Formula	(C₄H₂O₃·C₂H₆O₂·C₉H₆O₆)ₙ
Molecular Weight	Varies (Polymer)
Synonyms	Ethylene Glycol / Maleic Anhydride / Trimellitic Acid Copolymer; Poly(ethylene glycol-alt-maleic acid-co-trimellitic acid); Maleic Acid - Ethylene Glycol - Trimellitic Acid Copolymer; Water Treatment Polymer 31742-81-1; Scale Inhibitor Copolymer; TMA/MA/EG Terpolymer; Dispersant 31742; Polycarboxylate Terpolymer
EINECS	Contact for details

Quality Control

Our production of this terpolymer adheres to strict quality management systems, ensuring batch-to-batch consistency for critical performance parameters like chelation value and dispersancy. Each lot is tested against key specifications including active content, pH, viscosity, and iron sequestration value. A comprehensive Certificate of Analysis (COA) detailing these results is provided with every shipment to guarantee the product meets your formulation and process requirements.

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 material is hygroscopic (moisture-sensitive). Keep away from strong oxidizing agents and strong bases.

Specification

Item	Specification
Appearance	Light yellow to amber viscous liquid or solid
Active Content	≥ 40.0% (Liquid) / ≥ 95.0% (Solid)
pH (1% aqueous solution)	2.0 - 4.0
Viscosity (25°C, Liquid)	100 - 800 cps
Calcium Chelation Value	≥ 300 mg CaCO₃/g
Iron Sequestration Value	Contact for details
Identification (IR)	Conforms

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