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Alcohol / Ethers

Maleic Anhydride

CAS No. 108-31-6

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About this product

Maleic anhydride (MA, CAS 108-31-6) is a corrosive white-flake solid that resin manufacturers react into polyester and alkyd resins and maleate ester plasticizers. We stock IS 5149:2020 material from IG Petrochemicals (IGPL) — India's largest maleic anhydride manufacturer — in 25 kg bags at our Redhills, Chennai warehouse, with dispatch across South India.

Applications & Uses

Polyester resin synthesis
Alkyd resin production
Maleate ester plasticizers (DOM)
Resin & polymer intermediates

Safety & Technical Documents

MSDS / SDS

TDS / COA

Certificate of Analysis · with every supply, on request

Product DataTechnical Specifications

Physical Properties

Appearance
White to off-white solid pellets or flakes; pungent irritating odour
Purity
≥ 99.5%
Boiling Point
202°C
Melting Point
52.8°C
Solubility
Reacts with water to form maleic acid; soluble in acetone, ethyl acetate, toluene

Supply & Packaging

Packaging
25 kg HDPE bag25 kg carton with PE liner1000 kg jumbo bag
Grades Available
IndustrialTechnical
Lead Time
Ex-stock to 5 working days
Origin
Imported

Compliance & Storage

HS Code
2917.14.00
UN Number
2215
Hazard Class
Class 8 — Corrosive solid (Packing Group III)
Storage
Cool, dry area. Keep away from moisture, oxidisers, and alkalis. Ensure ventilation — corrosive vapours.
Shelf Life
24 months from manufacture

These specs are indicative. Request a Certificate of Analysis (COA) for batch-specific values.

Source Manufacturers

Sourced directly from verified manufacturers for consistent quality and traceability.

Supplied across South IndiaCoimbatore · Madurai · Hosur · Bangalore · Hyderabad · Visakhapatnam · Kochi

Frequently Asked Questions

What is maleic anhydride used for?

Maleic anhydride is a core raw material for polyester and alkyd resin synthesis, and an intermediate for maleate ester plasticizers such as DOM. Resin producers across South India buy it alongside phthalic anhydride and aromatic solvents, and we supply all three from stock in Chennai.

What is the CAS number and HSN code of maleic anhydride?

The CAS number of maleic anhydride is 108-31-6 and its HSN code is 2917 14 00. In the chemical trade it is abbreviated MA (also MAN); systematic names are cis-butenedioic anhydride and 2,5-furandione.

What specification does SPC's maleic anhydride meet?

Our material is certified to IS 5149:2020 on the manufacturer's certificate of quality: maleic anhydride content 99.2% mass min, maleic acid content 0.8% mass max, crystallizing point 52.1°C min, colour of molten material 20 APHA max, ash 0.005% mass max, and iron 10 ppm max. Appearance is white flakes with no visible impurities.

Where does SPC source its maleic anhydride?

We stock maleic anhydride from IG Petrochemicals Limited (IGPL), Taloja MIDC, Maharashtra — India's largest maleic anhydride manufacturer, ISO certified. We distribute it from our Redhills, Chennai warehouse across South India, as we have since 1997.

How is maleic anhydride packed, and how fast can SPC deliver in Chennai?

Maleic anhydride is traded as briquettes or flakes; we supply white flakes in 25 kg bags, with 25 kg cartons with PE liner and 1000 kg jumbo bags also available. Typical lead time is ex-stock to 5 working days from Redhills, Chennai — order sizes depend on packaging and current stock. Call or WhatsApp +91 86087 80096 for a quote.

What are the UN number and hazard class of maleic anhydride, and how should it be stored?

Maleic anhydride is UN 2215, Hazard Class 8 — corrosive solid (Packing Group III). It reacts with water to form maleic acid, so store it in a cool, dry, ventilated area away from moisture, oxidisers, and alkalis, and use gloves, goggles, and respiratory protection when handling. Shelf life is 24 months from manufacture.

Packaging Options

25 kg HDPE bag
25 kg carton with PE liner
1000 kg jumbo bag

Product Details

CAS NUMBER108-31-6
CATEGORYAlcohol / Ethers
GRADEIndustrial / Technical
SUPPLYEx-stock, Chennai

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