High - Purity Low - Impurity Maleic Anhydride

• Customization: Available
• CAS No.: 108-31-6
• EINECS: 203-571-6
• Model NO.: 108-31-6
• Type: Synthesis Material Intermediates
• Appearance: Crystal
• Quality: Industrial
• Colour: White
• Usage: Upr, Hydrogenation, Tartaric Acid, Upr Resin
• Crystallization Point / ºC: 52.5 Min
• Mass Fraction of Iron (Calculated by Fe): ≤3
• Mass Fraction of Burning Residue /%: ≤0.005
• Melting Chroma / Hazen Unit: 25 Max
• Transport Package: 25kg/Bag
• Specification: 99.6%
• Origin: China
• HS Code: 29171400
• Production Capacity: 1000mt/M

Product Description

Product Introduction

Maleic anhydride, also known as (MA).Appearing as white crystals (or powder in processed forms), it features a sharp, pungent odor. As a versatile building block in chemical synthesis, MA drives innovation across industries-from resin manufacturing to agrochemicals-by enabling the production of high - performance materials and specialty chemicals. Its reactivity (via anhydride, double - bond, and carbonyl groups) makes it indispensable for formulating unsaturated polyesters, lubricant additives, and more

Product Specification

 

 

 

Characteristics	Units	Guaranteed Values	Results
Appearance		White briquettes	White briquettes
Purity(by MA)	WT%	99.6 min	99.72
Molten Colour	APHA	20 Max	6
Solidifying Point	ºC	52.5 Min	52.6
Ash	WT%	0.005 Max	<0.001
Iron	PPM	1.5 Max	0.05
Maleic Acid	WT%	1.5 Max	0.01

 

Packaging & Shipping

 

 

Product Application

1. Unsaturated Polyester Resins (UPR)

• Role: Core raw material (40 - 60% formulation). Reacts with glycols (e.g., propylene glycol) to form UPR-hardens into rigid, heat - resistant structures.
• End - Uses:
  • Composites: (FRP) for boats, wind turbine blades, and chemical tanks.
  • Construction: Casting resins for flooring, bathroom fixtures, and precast concrete.

2. Lubricant Additives

• Application: Converted to maleic anhydride - modified dispersants (e.g., succinimides).
• Benefits: Cleans engine components, prevents sludge buildup, and improves oil stability under high temps.

3. Agrochemical Intermediates

• Use Case: Synthesizes herbicides (e.g., glyphosate intermediates) and plant growth regulators.
• Value: Enables selective weed control and crop yield enhancement via precise molecular structures.

4. Coatings & Adhesives

• Function: Forms alkyd resins (with polyols, fatty acids) for durable paints-enhances weather resistance, gloss, and adhesion.
• Adhesives: Improves bond strength in structural adhesives for automotive/construction.

5. Specialty Chemicals

• Derivatives:
  • Fumaric Acid: Produced via MA isomerization-used in food acids, resin modifiers.
  • Maleic Esters: (e.g., dimethyl maleate) for plasticizers, cross - linking agents in polymers.