Methylhexahydrophthalic anhydride Chemical Properties

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

Stability:

Moisture Sensitive

InChI

InChI=1S/C9H12O3/c1-9-5-3-2-4-6(9)7(10)12-8(9)11/h6H,2-5H2,1H3

InChIKey

VYKXQOYUCMREIS-UHFFFAOYSA-N

SMILES

C1(OC(=O)C2CCCCC12C)=O

LogP

2.59 at 25℃

CAS DataBase Reference

25550-51-0(CAS DataBase Reference)

EPA Substance Registry System

Methylhexahydrophthalic anhydride (25550-51-0)

Safety Information

Safety Statements 

24/25

HS Code 

29329990

Methylhexahydrophthalic anhydride Usage And Synthesis

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.

Methylhexahydrophthalic anhydride(25550-51-0)Related Product Information

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