Basic Information
High Purity Tetrahydrophthalic Anhydride(THPA) CAS 85-43-8
| Chemical Properties |
| Melting point | 101-102°C |
| Boiling point | 195°C 5mm |
| density | 1,375 g/cm3 |
| vapor pressure | 0.021Pa at 20ºC |
| refractive index | 1.4810 (estimate) |
| Fp | 157°C |
| storage temp. | Store below +30°C. |
| solubility | soluble in DCM, Ethyl Acetate, Toluene |
| form | Solid |
| pka | 3.84[at 20 ºC] |
| color | Off-White to Light Tan |
| Water Solubility | 29.4g/L at 20ºC |
| LogP | 1.29 at 40ºC |
Products Description
Tetrahydrophthalic anhydride is usually a colorless to light yellow crystalline solid, soluble in common organic solvents such as acetone, benzene and chloroform, and hydrolyzed in water to form the corresponding acid.THPA is a cyclic anhydride, which can undergo the typical anhydride reactions, such as hydrolysis, alcoholysis, and aminolysis; it reacts easily with water to form tetrahydrophthalic acid; with alcohols to form esters, and with amines to form amides. It is widely used in organic synthesis and is an important chemical intermediate. THPA can also be used as stabilizers, catalysts, plasticizers, dyes and raw materials for polymer materials.
Applications：
1.Epoxy Resin Curing Agent: Tetrahydrophthalic anhydride is widely used as a curing agent for epoxy resins. It suitable for applications in coatings, adhesives, and composites.
2.Plasticizers and Additives: THPA is used as a raw material for the production of plasticizers and other additives for polymers. The esters derived from THPA can improve the flexibility and processability of polymers.
3.Pharmaceutical and Agrochemical Intermediates: 1,2,3,6-Tetrahydrophthalic anhydride is used as an intermediate in the synthesis of certain pharmaceuticals and agrochemicals.
Why choose GNEE BIO?
1: Price - Competitive and reasonable price
2: After-sales service - Efficient and reliable after-sales service
3: Specialized, safe and fast delivery
4: Customization - Customized labels and packaging; OEM/ODM service
5: Storage - Sufficient stock in China warehouse
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Packaging & Shipping
| Cargo weight | Packing | Shipping method | Lead-time |
| 1-50kg | Below 5kg Use Foil bag; 5-25kg use two layer PP bag,then into master carton or cardboard drum |
International express (Fedex/ DHL/UPS) |
1~3 days after payment |
| 100-200kg | 25kg/drum,use two layer PP bag,then into cardboard drum | Air shipping Sea Shipping |
5~7 days after payment |
| Over 500kg | 25kg/drum,use two layer PP bag,then into cardboard drum | Sea shipping | 7~10 days after payment |
Customized Package Is Available.
We will always do our best to utilize the quickest and most affordable way for customers to receive orders.
Company Profile
GNEE BIO is located in Anyang City, Henan Province, China. It is a well-known supplier and manufacturer of chemical raw materials in China. We provide basic chemical raw materials, organic solvents, pharmaceutical intermediates, and other cost-effective chemical products to domestic and international chemical manufacturers and fine chemical product producers.
Chemical Raw Materials Manufacturer Supply
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Customers Visit GNEE BIO Group
FAQ
Q: Can you deliver on time?
A: Of course! Many customers have made agreements with me because we can deliver on time and guarantee the first-class quality of the goods!
Q: Can I visit your factory in China?
A: Of course you can, you are very welcome to visit us.
Q: How do I place an order?
A: You can send us an inquiry for detailed order information and we will explain the detailed process to you.
Q: When will I receive your reply?
A: We guarantee the fastest response, the fastest service, email will be replied within 12 hours.
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