DESCRIPTION:
　　White crystals with good stability , dissolving freely in water and aleohol, a kind of strong organic acid.
　　Chemical Name: Cis-2-butenedioic acid
　　Molecular Formula: C₄H₄O₄
　　Molecular Weight:116.07
Specifications
（1）Technical Grade

Items

Specifications

Assay(as C₄H₄O₄ )

99.5% min

Melting Point

130℃～138℃

Colour(5% alcohol solution)

10AHPA.Max

（2）Pharmaceutical Grade(BP,1998)

Items

Specifications

Assay(anhydrous basis, as (C₄H₄O₄ )

99.5%～101.0%

Heavy Metal(as Pb)

10ppm Max

Moisture:

2.0% Max

Residue on Ignition:

0.1% Max

Fe:

5ppm Max

Fumaric Acid:

1.5% Max

Solution State:

Clear

Colour:

Qualified

MAIN FUNCTION AND PURPOSE:
　　 Maleic acid is mainly used to manufacture unsaturated polyester resin, pesticide, tartaric acid, fumaric acid, succinic acid, DL-Malic acid, dyeing auxiliary and preservative grease. Maleic acid is also widely used in food and pharmaceutical industry.
PACKING:
　　25kg in plastic woven bag lined with PE bag.20MT/20′FCL(with palletized)or 22MT/20′FCL(without pallet).
STORAGE:
　　Kept in a light－proof, well-closed, dry and cool place.