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Methylhexahydrophthalic anhydride

CAS No.25550-51-0
Chemical Name:Methylhexahydrophthalic anhydride
CBNumber:CB8547325
Molecular Formula:C9H12O3
Formula Weight:168.19
MOL File:25550-51-0.mol

Methylhexahydrophthalic anhydride Property

Boiling point 299℃[at 101 325 Pa]
Density 1.162
vapor pressure 0.274Pa at 25℃
refractive index 1.479Nd(25°C)
storage temp. Inert atmosphere,Room Temperature
solubility Chloroform (Slightly), Methanol (Slightly)
pka 4.12[at 20 ℃]
form Oil
color Colourless
Viscosity 50-70mPa.s(25°C)
Stability Moisture Sensitive
LogP 2.59 at 25℃
CAS DataBase Reference 25550-51-0(CAS DataBase Reference)
EPA Substance Registry System Methylhexahydrophthalic anhydride (25550-51-0)

Safety

Safety Statements :24/25
HS Code :29329990

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal wordDanger
Hazard statements H317-H334-H318
Precautionary statements P261-P272-P280-P302+P352-P333+P313-P321-P363-P501-P261-P285-P304+P341-P342+P311-P501-P280-P305+P351+P338-P310

Methylhexahydrophthalic anhydride Chemical Properties,Usage,Production

Chemical Properties colorless clear
Uses Methylhexahydrophthalic Anhydride(MHHPA) is a hardener for hot-cured epoxy resins in the electric/electronics industry as well as a raw material for polyurethane/polyester resins, adhesives, LEDs, Outdoor High Voltage Castings and Composites, automotive clear coats, insecticide, plasticizer and antirust.
Due to its cycloaliphatic structure and the absence of aromatic bonds, metals or contaminants, MHHPA imparts inequivalent resistance to UV radiation and atmospheric agents.
These characteristics make MHHPA particularly suited for electronic applications, such as high performance LEDs and for automotive clear coats. In addition, MHHPA exhibits outstanding mechanical and electrical properties, as well as excellent color retention.
Definition ChEBI: Methylhexahydrophthalic anhydride is a cyclic dicarboxylic anhydride that is the cyclic anhydride of methylhexahydrophthalic acid. It has a role as an allergen and a curing agent. It is a cyclic dicarboxylic anhydride and a tetrahydrofurandione.
Preparation Methyl hexahydrophthalic anhydride is produced from methyl tetrahydrophthalic anhydride by catalytic hydrogenation. It is a high-performance product among acid anhydride-type solidifying agent.
Flammability and Explosibility Non flammable
storage MHHPA must be stored away from open flames or other potential ignition sources, and should be protected from moisture, because it easy crystallizes when it's in contact with the humidity of the air. When some crystallization occurs, check the properties before reusing.