Description

Tetrasodium 4,4'-[(1-Methylethylidene)Bis(1,4-Phenyleneoxy)]Bisphthalate is a high-purity, water-soluble organic salt derived from bisphenol A and phthalic acid, serving as a critical functional additive in advanced material formulations. Its primary value lies in its ability to act as a highly effective dispersant, chelating agent, and processing aid, enhancing the stability and performance of complex chemical systems. This compound is essential for manufacturers in the polymer, coating, and specialty chemical industries seeking to improve product uniformity and longevity.

Application

• Polymer Additive: Acts as a dispersant and processing aid in the production of engineering plastics and high-performance resins to improve flow properties and reduce agglomeration.
• Coating & Ink Formulations: Used as a stabilizer and pigment dispersant in water-based coatings, inks, and dyes to ensure color consistency and prevent settling.
• Chelating Agent: Functions to sequester metal ions in industrial cleaning formulations, water treatment processes, and detergent systems, preventing scale and improving efficacy.
• Adhesive & Sealant Production: Enhances the stability and shelf-life of adhesive emulsions and sealants by controlling viscosity and preventing phase separation.
• Textile Auxiliary: Employed in dyeing and finishing processes to improve dye uptake, levelness, and fastness on synthetic fibers.
• Ceramic & Glass Processing: Serves as a deflocculant and grinding aid in ceramic slurries and glass frit production, aiding in particle size reduction and suspension stability.

Basic Information

Product Name	Tetrasodium 4,4'-[(1-Methylethylidene)Bis(1,4-Phenyleneoxy)]Bisphthalate
CAS No.	67892-57-3
Molecular Formula	C34H24Na4O12
Molecular Weight	704.51 g/mol
Synonyms	Tetrasodium Bisphenol A Bisphthalate; Tetrasodium BPA Bisphthalate; Bisphenol A Tetrasodium Phthalate; 4,4'-Isopropylidenediphenol Tetrasodium Phthalate Derivative; BPA Tetrasodium Phthalate Salt; Tetrasodium Salt of 4,4'-(Isopropylidene)diphenol Bisphthalate; Water-Soluble Bisphenol A Phthalate
EINECS	Contact for details

Quality Control

Our Tetrasodium 4,4'-[(1-Methylethylidene)Bis(1,4-Phenyleneoxy)]Bisphthalate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and performance. Certificates of Analysis (COA) documenting key parameters are provided with every shipment to guarantee traceability and compliance with your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed when not in use to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
pH (5% Solution)	9.0 - 11.0
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition (Sulfated Ash)	Contact for details

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