Description

Tetrasodium Benzene-1,2,4,5-Tetracarboxylate is the tetrasodium salt of pyromellitic acid, a high-purity organic intermediate with excellent chelating and sequestering properties. This compound is valued for its ability to form stable complexes with metal ions, making it a critical component in formulations requiring precise control over water hardness and metal reactivity. It serves as a key building block for advanced polymers, high-performance chelating agents, and specialty chemical synthesis across the water treatment, detergent, and polymer industries.

Application

• Chelating Agent Precursor: Serves as a key raw material for the synthesis of high-performance chelating agents and sequestrants used in industrial water treatment, boiler systems, and detergent formulations to control scale and inhibit metal-catalyzed degradation.
• Polymer & Resin Intermediate: An essential monomer for the production of polyimides, polyamide-imides, and other high-temperature, high-strength engineering plastics and coatings.
• Crosslinking Agent: Used in the manufacture of specialty resins, adhesives, and coatings where it contributes to thermal stability and mechanical strength.
• Analytical Reagent: Employed in analytical chemistry as a standard or reagent for complexometric titrations and metal ion analysis.
• Pharmaceutical & Cosmetic Intermediates: Functions as an intermediate in the synthesis of certain active pharmaceutical ingredients (APIs) and specialty cosmetic additives.
• Electroplating & Metal Finishing: Acts as a complexing agent in electroplating baths to improve deposit quality and bath stability.

Basic Information

Product Name	Tetrasodium Benzene-1,2,4,5-Tetracarboxylate
CAS No.	148-04-9
Molecular Formula	C10H2Na4O8
Molecular Weight	358.07 g/mol
Synonyms	Tetrasodium Pyromellitate; Pyromellitic Acid Tetrasodium Salt; Benzene-1,2,4,5-Tetracarboxylic Acid Tetrasodium Salt; 1,2,4,5-Benzenetetracarboxylic Acid Tetrasodium Salt; Na4PM; Tetrasodium 1,2,4,5-Benzenetetracarboxylate; PMTA
EINECS	205-710-3

Quality Control

Our Tetrasodium Benzene-1,2,4,5-Tetracarboxylate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise chemical and physical specifications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and batch-to-batch consistency for your critical processes.

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (Titration)	≥ 98.0%
pH (5% Solution)	9.0 - 11.0
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 10 ppm
Chloride (Cl)	≤ 0.01%
Sulfate (SO4)	≤ 0.01%

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