Maleic acid
Maleic acid (CAS 110-16-7) is a dicarboxylic acid with the linear formula HO₂CCH=CHCO₂H and a molecular weight of 116.07 g/mol. This white crystalline solid is known for its cis configuration and is a versatile building block in organic synthesis. It finds application in the production of resins, polymers, and as a chemical intermediate.
- IUPAC
- cis-Butenedioic acid,Toxilic acid
- Synonyms
- cis-Butenedioic acidToxilic acid
Polymer and Resin Production
Maleic acid is a key monomer in the synthesis of unsaturated polyester resins, which are widely used in the manufacturing of fibreglass-reinforced plastics, coatings, and adhesives. Its incorporation imparts specific properties like hardness and chemical resistance.
Chemical Synthesis Intermediate
As an organic acid, maleic acid serves as a precursor in the synthesis of various other organic compounds, including malic acid and fumaric acid. It is also employed in the production of agricultural chemicals and pharmaceuticals.
Food Additive Precursor
While maleic acid itself is not typically used directly as a food additive, it is a precursor for the production of fumaric acid, which is approved for use as a food acidulant and flavour enhancer.
Lubricant and Additive Manufacturing
Derivatives of maleic acid can be used in the formulation of lubricant additives and other speciality chemicals, contributing to performance enhancement in various industrial applications.
| Molecular weight | 116.07 |
|---|---|
| Linear formula | HO2CCH=CHCO2H |
| Assay | 99% |
| Density | 1.59 g/mL at 25 °C(lit.) |
| Impurities tested | ≤2.0% water |
| Melting point | 137-140 °C(lit.) |
Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H317May cause an allergic skin reaction
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Flash point | 127 °C / 260.6 °F |
|---|---|
| Transport (UN / ADR) | UN 3077 9 / PGIII |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36/37/38-43 |
| Safety statements (S) | 24-26-28-37-46 |
| Ignition residue | ≤0.1% |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Maleic Acid used for?
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Maleic acid is used as a building block in organic synthesis, primarily for the production of resins, polymers, and as an intermediate for other organic compounds like malic and fumaric acid.
What is the CAS number and formula for Maleic Acid?
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The CAS number for Maleic Acid is 110-16-7 and its linear formula is HO₂CCH=CHCO₂H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Maleic Acid with an assay of 99%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should Maleic Acid be handled safely?
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Maleic Acid is classified with GHS07 symbol and a Warning signal word. It can cause harm if swallowed or in contact with skin, causes skin irritation, may cause an allergic skin reaction, causes serious eye irritation, and may cause respiratory irritation (H302 + H312-H315-H317-H319-H335). Always handle with appropriate personal protective equipment in a well-ventilated area.
How is Maleic Acid packed and exported?
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Maleic Acid is packed and exported according to international regulations for hazardous materials, including UN 3077 9 / PGIII classification for transport.
How can I request a sample or quote for Maleic Acid?
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To request a sample or a quote for Maleic Acid, please contact our sales team via the website or by phone, providing your specific requirements.
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