Description

Maleic Acid CAS NO 110-16-7 is a versatile dicarboxylic acid and a key industrial intermediate prized for its reactivity and functionality. Its primary value lies in its role as a precursor for the synthesis of fumaric acid, unsaturated polyester resins, and various agricultural and pharmaceutical chemicals. This product is essential for manufacturers in the polymer, food additive, and agrochemical industries seeking a reliable and high-purity raw material.

Application

• Polymer & Resin Production: A crucial monomer and cross-linking agent in the manufacture of unsaturated polyester resins (UPR) and alkyd resins.
• Chemical Intermediate: Used in the synthesis of fumaric acid, malic acid, succinic acid, and other valuable chemical derivatives.
• Agrochemicals: Serves as a key intermediate in the production of pesticides, herbicides, and plant growth regulators.
• Food & Beverage Industry: Employed as an acidulant and flavor enhancer (where compliant with food-grade specifications).
• Pharmaceutical Synthesis: Acts as a building block for certain active pharmaceutical ingredients (APIs).
• Metal Treatment & Plating: Used in metal cleaning, finishing formulations, and as a component in electroplating baths.
• Textile Processing: Functions in dyeing and finishing operations.

Basic Information

Product Name	Maleic Acid
CAS No.	110-16-7
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	203-742-5

Quality Control

Our Maleic Acid is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity, identity, and physical properties. We provide Certificates of Analysis (COA) with every shipment to guarantee traceability and compliance with your technical requirements. Specifications can be tailored to meet industrial, food-grade (FCC), or pharmaceutical (USP/EP) standards.

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). Keep away from heat, sparks, and open flame. Separate from strong bases, oxidizing agents, and reducing agents.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 99.0%
Melting Point	130 - 135 °C
Water (Karl Fischer)	≤ 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.