Basic Info.

Product Description

Mthpa molecular formula c9h10o3 molecular weight 166.18 cas no. 19438-64-3 un no. / cn no. / einecs. 234-290-7 chemical name methyl tetrahydrophthalic anhydride brief introduction： mthpa is light yellow transparent liquid. this product is synthesized from c5 by distinctive methodology. it has many excellent properties: high purity, light color, low viscosity, good processing properties, low volatility, low toxicity, low solidifying point, durable at room temperature and so on. the product is a new material for electronical & mechanical products.as the curing agent, it is widely used in casting, sealing, winding, and bonding technology. specification： itemindex ihy905 ihy908 ihy910 ihy912 chroma(pt-co) <300# <200# crystallizing point, °c <-20 viscosity pa.s,25°c ≤0.180 ≤0.050 ≤0.040 acidity, mgkoh/g ≥490 660-685 anhydride content, (%) ≥30 ≥41.5 loss on heating (%,120°c) ≤1.5 application condition： formulation: e-51 epoxy resin: fhy series solidifying agent: accelerant=100: 75-80: 0.1-0.5. process: 60-80 °c debubbling+100 °c /2hrs+130 °c /6hrs, the subsequent temperature and time is decided according to the volume of solidified matter. package and storage： 25kg plastic barrel or 220kg iron barrel. in the storage and transportation process, it should be sealed and avoid moisture. it should be stored in dry and ventilated warehouse. it can be stored one year at room temperature.