Hexahydrophthalic anhydride (HHPA)

1,Chemical name:Hexahydrophthalic anhydride

Alias:1,2-Cyclohexanedicarboxylic anhydride; HHPA; cyclohexanedicarboxylic anhydridel; 1,2-cyclohexane- dicarboxylic anhydride, mixture of cis and trans

English abbreviation:HHPA

CAS No:85-42-7

Molecular formula:C₈H₁₀O₃

Molecular weight:154.17

Appearance:It is soluble in benzene and acetone, etc. It is hygroscopicity..

Structural formula:

2,Quality index:

3,Performance characteristics:

Compared with THPA, hexahydrophthalic anhydride has light color and luster, low viscosity, small volatility, low toxicity, small loss on heating, stable performance, long using life, low freezing point and can be long-term stored at room temperature.

4,Main usage:

4.1 It is used in the synthesis of polyester resin. It can improve product’s weather resistance, light fastness and heat resistance, which is widely used in the polyester resin synthesis of automobile coating and powder coating.

4.2 Used as alcohol acid resin modifier, it can improve resin’s haptic, gloss, waterproof and salt water resistance; used in normal temperature curing alcohol acid resin, it can accelerate the curing speed. Used this modifier resin in the coating of automobile, bicycle, ship, bridge and building can get good result.

4.3 Use as epoxy resin coating curing accelerator, it can improve curing speed. It is used for electrical equipments, integrated circuit and model.

4.4It is used as pesticide raw material.

4.5 It is used as pharmaceutical raw material to produce blood pressure medications.

4.6 It is used as plasticizer and antirust additive, etc.

Packaging & Shipping

  It is packed with 220kg iron barrel. In transportation process, it should avoid moisture, fire and water. It should be stored in dry and ventilated warehouse.