Product Code

MHHPA

Methylhexahydrophthalic Anhydride (MHHPA)

CAS Number
25550-51-0
EINECS
247-094-1

Description

Heat-cure anhydride curing agent with a low melting point and long working life, giving cured epoxy systems high heat resistance and good high-temperature electrical properties. Increasingly used in fiber-reinforced composites made by lamination, centrifugal casting or pultrusion.

Synonyms

curing agenthardeneramine7a-methyl-4,5,6,7-tetrahydro-3aH-2-benzofuran-1,3-dioneHexahydro-1-methylphthalic anhydride3a-methylhexahydro-2-benzofuran-1,3-dionemethyl-1,2-cyclohexanedicarboxylic anhydride1,3-Isobenzofurandione, hexahydromethyl-

Key applications

  • Impregnation of electrical coils and components
  • Casting and sealing of electronic and semiconductor parts
  • Fiber-reinforced composites (lamination, centrifugal casting, pultrusion)
  • Bonding of optical components

Characteristics

Molecular formulaC9H12O3
Molecular weight168.19
AppearanceColorless transparent liquid
Color (Pt-Co)≤ 20
Content≥ 98%
Density (20°C)1.12-1.22 g/cm3
Viscosity (25°C)50-80 mPa.s
Crystallization point≤ 15
Iodine content≤ 2.00 (1g/100g)
Boiling point290°C
Flash point145°C

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