Product Name:

Maleic Acid

WCode:

13-036

CAS No.

110-16-7

Molecular Formula:

C4H4O4

Formula Weight:

116.07

           

Physical and Chemical Properties

Physical State

White crystals

Melting Point

130-131°C

Boiling Point

Decomposes

Specific Gravity

1.59

Solubility in Water

Soluble

PH

< 7

NFPA Ratings

Health: 3; Flammability: 0; Reactivity:0

Flash Point

>100 C

Stability

Stable under ordinary conditions

 

 

Applications

Maleic acid (also called cis-butenedioic acid), a white crystals easily soluble in water, acetone, and alcohol, is an unsaturated organic dibasic acid which carboxylic acid groups are next to each other in the cis form. Its trans form isomer is fumaric acid, both are used in making polyesters, alkyd resins, plasticizers and lubricating oils. Maleic acid is prepared commercially by the oxidation of benzene.  Maleic acid is used in the manufacture of fumaric acid and other chemical products as a carboxylating agent. It is used as an oil and fat preservative and food acidulated.

 

Sales Specification

Appearance

White crystals with good stability, dissolving easily in water and alcohol, a king of stronger organic acid

Assay (Anhydrous basis as C4H4O4)

99 % - 101% Min

Heavy metal (as Pb)

10 mg/kg Max

Water

2.0% Max

Iron (as Fe)

5 mg/kg Max

Fumaric Acid

1.5% Max

Appearance of solution

Qualified

State of solution

Clarification

Sulphated Ash

0.1% Max

 

Transportation

UN No

3261

 

Hazard Class

8

Packing Group

III