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.
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:
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