Our advantages

High quality tetrahydrophthalic anhydride,THPA

1.Competitive price

2.Fast Delivery Within 2 days

3.SGS , BV, GMP,ISO approve

4.Professional factory

Superlist Name:cis-1,2,3,6-Tetrahydrophthalic anhydride

Formula:C8H8O3

CAS No.:935-79-5

Purity:99%

Synonyms:cis-4-Cyclohexene-1,2-dicarboxylic anhydride;THPA

Molecular Weight:152.15

Appearance:white flaky solid 

Melting Point:98-102 ºC

Flash Point:156 ºC

EINECS:213-308-7

Application:It is mainly used as a hardener component for epoxy resins. It is used as an intermediate for polyesters, specialty resins, plasticizers, adhesives, fungicides, pesticides.

Phthalic anhydride, the anhydride form of phthalic acid , is produced by the oxidation of orthoxylene and naphthalene. 

Its wide application is based on the ortho related carboxylic acid groups as their dehydration is highly reactive with broad 

processing conditions to produce various downstream products. It is used to make simple esters widely used as plasticizers. 

It is used as in making unsaturated polyester resins, alkyd resins, polyester polyols, dyes and pigments, halogenated anhydrides, 

polyetherimide resins, isatoic anhydride and insect repellents.Anhydride is a compound formed by the abstraction of a m

olecule of water, H2O, from a substance. The term acid anhydride is restricted sometime to the anhydride formed especially 

from an acid by dehydration or one that revert to the original substance upon hydration. In case of bimolecular, it can be c

omposed of two molecules of the corresponding acid. The term mixed anhydride is an acid anhydride composed of two different a

cids. Examples are adenosine triphosphate or an aminoacyl adenylate. The anhydrides of bases are oxides.

 Used as curing agent of light color or gas-drying alkyd resin, optical stable unsaturated polyester, fast-dry or anaerobic adhesive of atomic resin, PE resin, solvent-free paint, anti-dirty paint, HF insulation paint, the plasticizer of EPS or used in the pesticide.

Company Information

QingdaoxigemaCHEMICAL Co., Ltd is is a global chemical industry manufacturers and suppliers of pharmaceuticals and intermediates, food and feed additives, herbal extracts, agrochemicals and fine chemicals etc.
 
The aim of  xigema is a quality policy that "Elements in the system all have been satisfied, Personnel has been trained; Every batch of material is checked, Each procedure guarantees the quality; Every bag of our products is top grade, Service is thoughtful all the time, quality and reputation to increase market share and promote enterprise development. The quality, colors and forms of our products have reached a high level in related chemical industry, which relies on characteristic and advanced processing technology and it has gained a high and reliable reputation from customers at both quality and services.
 
 xigema has become the "Top 500 Chinese manufacturing companies","Top 20 of global agrochemical sales". xigema  has 21 subsidiaries and holding companies.