Methyl tetrahydrophthalic anhydride MTHPA 19438-64-3

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：

Item\Index 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.