Maleic Acid

Other Trading Names:

  • cis-butenedioic acid

CAS Number: 110-16-7

HS Code: 29171910

Types of Packaging:

  • 25KG net in Plastic Woven Bag lined with PE bag
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Maleic Acid

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Chemical Name

Maleic Acid



Molecular Formula


CAS Number



White granules or crystalline powder

Grade Standard

Agriculture Grade, Food Grade, Industrial Grade, Medicine Grade


Highly Soluble in Water

Melting Point

130 ºC

Boiling Point

202 °C


1.59 g/cm3

Chemical Description

  • Maleic Acid, also recognized as cis-butenedioic acid, is a dicarboxylic acid that is represented by the chemical formula C4H4O4. It is distinguished by its white crystalline appearance and its significant solubility in water. This compound exists in a cis configuration, giving it distinct chemical properties compared to its isomer, fumaric acid.
  • Maleic Acid serves a pivotal role in various industrial sectors due to its versatility as a chemical building block. Its ability to undergo polymerization, esterification, and other chemical reactions makes it a valuable raw material in the production of synthetic resins, coatings, and plastics.
  • In the pharmaceutical industry, Maleic Acid is utilized as an acidity regulator and a precursor for the synthesis of active pharmaceutical ingredients. Its biocompatibility and functional groups make it suitable for drug formulation and delivery systems.
  • The food industry employs Maleic Acid as a pH adjuster and flavor enhancer. It is found in beverages, confectioneries, and as a preservative in some food products, enhancing the taste and stability of food items.
  • Maleic Acid's reactivity with alcohols and amines has facilitated its use in the production of surfactants and detergents. These applications take advantage of its ability to improve water solubility and cleaning efficiency.
  • In the field of agriculture, Maleic Acid is used in the formulation of herbicides and fungicides, contributing to the control of pests and diseases in crops. Its chemical properties allow for the efficient delivery of active ingredients in agricultural chemicals.
  • The compound's capability to form copolymers and complexes with various metals is exploited in water treatment processes. Maleic Acid-based polymers are used as water softeners and in the prevention of scale formation in pipes and machinery.
  • In the context of environmental sustainability, Maleic Acid is explored for its potential in creating biodegradable plastics and polymers. Its compatibility with green chemistry principles underscores its role in developing eco-friendly materials.
  • Furthermore, Maleic Acid's inclusion in personal care products, such as hair and skin care formulations, leverages its properties as a pH adjuster and conditioning agent.
  • Maleic Acid is a versatile and valuable chemical compound with a broad spectrum of applications across different industries. Its adaptability and reactivity underpin its essential role in modern chemical manufacturing and product development.
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Maleic Acid