Description

Maleic Acid is a versatile dicarboxylic acid widely used as a key chemical intermediate in industrial synthesis. Its primary value lies in its reactive double bond and two carboxylic acid groups, enabling its use in the production of polymers, resins, and fine chemicals. This product is essential for manufacturers in the polymer, agricultural chemical, and surface coating industries seeking a reliable and high-purity building block for their processes.

Application

• Polymer & Resin Production: A crucial monomer and intermediate in the synthesis of unsaturated polyester resins (UPR), alkyd resins, and various copolymers.
• Chemical Intermediate: Used in the manufacture of agricultural chemicals, pharmaceuticals, and food additives such as fumaric and malic acids.
• Surface Coatings & Inks: Imparts hardness and chemical resistance in coatings, paints, and printing inks.
• Metal Treatment & Plating: Acts as a chelating agent and pH adjuster in metal cleaning, finishing, and electroplating solutions.
• Oil & Gas Industry: Employed as a scale inhibitor and in formulations for enhanced oil recovery.
• Detergents & Cleaning Agents: Functions as a builder and sequestering agent to improve cleaning efficiency.

Basic Information

Product Name	Maleic Acid
CAS No.	2170020-79-6
Molecular Formula	C4H4O4
Molecular Weight	116.07 g/mol
Synonyms	(Z)-Butenedioic Acid; cis-Butenedioic Acid; Toxilic Acid; Maleinic Acid; cis-1,2-Ethylenedicarboxylic Acid; 2-Butenedioic Acid (Z)-; Maleic Acid Anhydride (precursor)
EINECS	Contact for details

Quality Control

Our Maleic Acid is produced under stringent quality management systems to ensure batch-to-batch consistency and reliability. The product undergoes comprehensive analytical testing, including assay, impurity profiling, and physical property verification. A Certificate of Analysis (COA) is provided with each shipment, detailing compliance with agreed specifications. We support customer audits and can tailor quality parameters to meet specific regulatory or application requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat sources, strong bases, and oxidizing agents. The material is hygroscopic (moisture-sensitive); ensure containers are sealed after use to prevent caking.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 99.0%
Melting Point	130 - 135 °C
Water (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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