Origin

China

Methyltetrahydrophthalic anhydride, MTHPA
Molecular formula   C9H10O3 CAS No   26590-20-5 Molecular weight  166.17 Uses   For epoxy curing agent, solvent-free paint, laminates, epoxy adhesives and so on. For epoxy curing agent, with such advantages as : a long-term storage at room temperature, freezing point is low, volatility is small, excellent performance and low toxicity. It is widely used in the impregnation, casting and winding of motors, dry-type transformers, high voltage switch, transformer, line output transformer, household appliances capacitors, power capacitors resistors, integrated circuits and so on. Packing  25kg plastic drum or 220kg metal pail. Quality standard Item TC601 TC602 TC603 Appearance light yellow transparent liquid colorless transparent liquid Color & luster    Pt-Co <300# <200# <100# Density g/cm3 20 1.21±0.05 1.21±0.05 Crystallization point -15 -15 Viscosity pa.s 0.035—0.050 0.035~0.050 Avid value mgKOH/g 660-685 660-685 Anhydride % >40.5 >40.5 Loss on heat % <2.0 <2.0