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Tetrahydrophthalic anhydride or THPA is a white flake solid. It is soluble in organic solvents such as petroleum ether and it is melted at 100 ℃ and flashing point 156℃.
Melting point °C 98-102
Color and Luster, % ≤ 50
Used as curing agent of light color or gas-drying alkyd resin, optical stable unsaturated polyester, fast-dry or anaerobic adhesive of atomic resin, PE resin, solvent-free paint, anti-dirty paint, HF insulation paint, the plasticizer of EPS or used in the pesticide.