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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

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