Description

Tripotassium Hydrogen 4,4'-Carbonylbisphthalate is a specialized potassium salt derivative of a carbonylbisphthalic acid, serving as a key intermediate and functional additive in advanced material synthesis. Its structure provides unique ionic and chelating properties, making it valuable for applications requiring precise metal ion control and solubility. This compound is primarily utilized by manufacturers in the polymer, specialty chemical, and pharmaceutical industries for developing high-performance materials and formulations.

Application

• As a functional monomer or cross-linking agent in the synthesis of specialty polyimides and high-temperature polymers.
• As a chelating agent or sequestrant in industrial cleaning formulations and water treatment processes.
• As a key intermediate in the production of pharmaceuticals and active pharmaceutical ingredients (APIs).
• In the formulation of advanced electrolytes or conductive materials for battery and energy storage research.
• As a corrosion inhibitor or additive in metal surface treatment and coating applications.
• In the synthesis of dyes and pigments, where it acts as a solubilizing or complexing agent.
• For research and development in coordination chemistry and as a precursor for metal-organic frameworks (MOFs).
• As a standard or reference material in analytical chemistry and quality control laboratories.

Basic Information

Product Name	Tripotassium Hydrogen 4,4'-Carbonylbisphthalate
CAS No.	68226-90-4
Molecular Formula	C17H7K3O9
Molecular Weight	480.44 g/mol
Synonyms	Potassium Hydrogen 4,4'-Carbonylbisphthalate; 4,4'-Carbonylbisphthalic Acid Tripotassium Salt; 1,1',3,3'-Benzophenonetetracarboxylic Acid Tripotassium Salt; Tripotassium 5,5'-Carbonylbis(isobenzofuran-1,3-dione-6-carboxylate); K-HBTA; Tripotassium BTA; BTCA Tripotassium Salt
EINECS	Contact for details

Quality Control

Our Tripotassium Hydrogen 4,4'-Carbonylbisphthalate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and composition. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance with your 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	Reported on COA
Potassium Content (Titration)	Reported on COA

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