Tetrahydrophthalic anhydride (TPHA)

Sales Tetrahydrophthalic anhydride (TPHA)

THPA is an excellent curing agent of epoxy resin. It is commonly used as a modifier of unsaturated polyester resin and alkyd resin. It can improve the adhesion, elasticity, gloss and water resistance of coatings. 

Product Detail  

Tetrahydrophthalic anhydride (TPHA)

Synonyms:Cis-1,2,3,6-Tetrahydrophthalic anhydride; 3a,4,7,7a-Tetrahydroisobenzofuran-1,3-dione

 

CAS No.:85-43-8

EINECS No.:213-308-7

Molecular Formula:C8H8O3

Molecular Weight:152.1473

Structural Formula:   
                               THPA                            

Standard

Items

Specifications

Appearance

White flakes

Content

≥99.0%

Melting point

98.0℃ ~ 102.0℃

Melt color(Pt-Co)

≤80Hazen

Properties:THPA is a white flake solid. Soluble in general organic solvents, slightly soluble in petroleum ether. Melting point: 100℃, Density 1.35g/ml.

Uses:THPA is an excellent curing agent of epoxy resin. It is commonly used as a modifier of unsaturated polyester resin and alkyd resin. It can improve the adhesion, elasticity, gloss and water resistance of coatings. As a plasticizer, it can improve the cold resistance and heat resistance of PVC, and is non-toxic. THPA is also an important intermediate in the synthesis of pesticides and pharmaceuticals.

Storage:Store in a cool, ventilated, moisture-proof and light-proof place. Keep container sealed and away from fire.

Packing:25kg or 500kg bag

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