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Changsha Jianglong Chemical Technology Co., Ltd.

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Changsha Jianglong Chemical Technology Co., Ltd.

Mobile phone:+86-13517495809 Mr.Tan



Add:No.36,Wangjiawan,Zuojialong,Yuelu District,Changsha City,Hunan Province,China.


Phthalic anhydride

Phthalic anhydride

Molecular formula:C8H4O3

Molecular weight:148.12

Quality standard:(GB/T15336-94)


Name Indicators
Excellent First class Qualified
Appearance White flake or crystalline powder The other shades of white microstrip flake or crystalline powder
Melt chroma(Pt - Co)≤ 20 50 100
Thermal stability chroma(Platinum - Cobalt)≤ 50 150 --
Crystallization point℃ ≥ 130.5 130.3 130.0
Purity% ≥ 99.5 99.5 99.0
Free acid content ≤ 0.5 0.5 0.5
Ash % ≤ 0.05 -- --


The main physical and chemical properties:White flaky crystalline powder, melting point 130.5℃, Solid Ratio (4℃): 1.527 insoluble in water and ether, with a general organic acid anhydride Chemical properties.

Use:This product is mainly used in the production of phthalate plasticizers can also be used for unsaturated polyester resins - alkyd resins, saccharin, plastics, paints, dyes and pharmaceutical industries.

Packaging:25kg, 50kg packaging polypropylene woven bag lined with PVC