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Maleic Anhydride

Name: Maleic Anhydride
SKU: 0

Maleic Anhydride, with the chemical formula C₄H₂O₃, is an important organic chemical raw material. It appears as white flake or needle-like crystals with a characteristic acrid odor. As a key intermediate in the production of unsaturated polyester resins, fumaric acid, tartaric acid and other chemicals, it is widely used in plastics, coatings, food additives, pesticides and other fields.

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Product Parameters

Product Name (English)	Maleic Anhydride
CAS No.	108-31-6
Physical Properties	- White crystalline flakes or needles - Characteristic acrid odor - Soluble in acetone, chloroform, most organic solvents - Reacts with water to form maleic acid
Applications	- Unsaturated polyester resins production - Food additives and preservatives - Agricultural chemicals - Synthetic raw materials
Specifications	Purity: ≥99.5% Melting Point: 52.8°C Solidification Point: ≥52.0°C Ash Content: ≤0.005% Iron Content: ≤0.0005%
Packaging	25 KG/bag (multi-layer paper-plastic composite) or 500 KG/bag

Basic Properties

Physical Properties:
· Appearance: White flake or needle-like crystals
· Melting Point: 52.8°C
· Boiling Point: 202°C
· Density: 1.48 g/cm³
· Solubility: Readily soluble in acetone, chloroform; slightly soluble in petroleum ether
· Flash Point: 103°C
Chemical Properties:
· Reacts with water to form maleic acid
· Reacts with alcohols to form esters
· Contains double bond, can undergo addition reactions
· Can undergo Diels-Alder reactions

Main Applications

Unsaturated Polyester: Main raw material for unsaturated polyester resins production
Food Industry: Production of food additives such as malic acid and tartaric acid
Pesticide Production: Intermediate for synthesis of pesticides like malathion
Coating Industry: Used in alkyd resins and coatings production
Paper Industry: Used as paper sizing agent
Pharmaceutical Industry: Intermediate for synthesis of certain drugs

Safety Precautions

Health Hazards:
· Strongly irritating to eyes, skin and respiratory tract
· Inhalation of dust or vapor may cause chemical pneumonia
· Contact may cause skin burns and eye damage
· Ingestion causes severe digestive tract burns
Handling Protection:
· Wear dust mask, safety goggles and acid-resistant gloves
· Avoid dust formation, prevent inhalation and contact
· Ensure adequate local exhaust ventilation
· Wash thoroughly after handling
Storage & Transportation:
· Store in a cool, dry, well-ventilated area
· Keep containers tightly closed and protected from moisture
· Store separately from bases and oxidizers
· Protect packages from damage during transportation
Fire Fighting:
· Combustible, burns when exposed to open flame
· Use water spray, foam, dry powder or carbon dioxide for fire fighting
· Firefighters should wear self-contained breathing apparatus

Company Profile

Junteng Chemical is a professional chemical raw materials trading company dedicated to providing customers with one-stop procurement services. Through strict supplier, supply chain, and after-sales management, the company ensures that product quality, transportation, and use meet customer needs. Furthermore, the company's technical team offers customized solutions and support services free of charge.

The company has projects in the pharmaceutical, pesticide, petrochemical, construction, food additives, wastewater treatment, adhesives, inks, paints, coatings, plastic and rubber processing, detergent raw materials, fertilizer and textile mills, and more. Junteng Chemical sources products of stable and reliable quality, collaborating with domestic and international companies such as Luxi Group, Weiyuan Chemical, Qilu Petrochemical, Dongying Lihuayi, Yanshan Petrochemical, Sinopec, Shijiazhuang Refinery, Qingdao Petrochemical, Sailboat, Dow Chemical, BASF, South Korea, Taiwan, and Saudi Arabia. Our stable supply, superior product quality, and mature logistics have earned us a wide clientele. We look forward to collaborating with all of you for a mutually beneficial future.

Company advantages

One-Stop Procurement
Platform

We integrate resources across all productcategories, including organic solvents,resins and rubbers, and inorganicchemicals,and strictly control suppliers.supply chains, and after-sales processes toensure stable quality, efficienttransportation,and worry-free use,simplifying your procurement process.

Professional Team TechnicalEmpowerment

Equipped with an experienced technicalteam, we provide free personalizedsolutions and professional technicalsupport to customers in varlous industrie,such as pharmaceuticals, petrochemicals,coatings and inks, and sewage treatment,.helping you solve problems and improveefficiency.

Global supply ChainSecurity

We work with top domestic and foreignchemical giants such as Luxi Group, QiluPetrochemical, Sinopec, BASF of Germany,and Dow of the United States to establisha stable and reliable high-quality supplynetwork and a mature logistics system toensure timely and safe delivery of
products.

Deep Win-Win CooperationConcept

Adhering to the concept of "integrity.immediate action, professionalism,innovation and win-win" and taking"customer success and altruism" as ourmission, we are committed to establishinglong-term strategic partnerships andcreating a better future through excellentproducts and services.