Min. Order: | 1 Ton |
---|---|
Payment Terms: | L/C, T/T |
Supply Ability: | 1000 Ton/Tons per Month |
Place of Origin: | Shanxi |
Location: | China (Mainland) |
---|---|
Business Type: | Manufacturer, Trading Company |
Main Products: | DUCTILE IRON PIPE AND FITTING, Ductile Iron Pipe Fittings, China Ductile Iron Pipe, 304L Stainless Seamless Steel Pipe, 316 Stainless Steel Wedge Wire Screen Pipe |
Means of Transport: | Ocean |
---|---|
Brand Name: | solid |
Production Capacity: | 1000 Ton/Tons per Month |
Packing: | big bag |
Delivery Date: | 30 days after order |
Detailed Product Description
phthalic anhydride
1.Good quanlity and
2.the manufacture of plasticizers, alkydresins
3.Phthalic Anhydride
4. SGS ,BV TE
phthalic anhydride
1 Phthalic anhydride is the organic compound with the formula C8H4O3. This anhydride of phthalic, a colourless solid, is an important industrial chemical, especially for the large-scale production of plasticizers for plastics. In 2002, approximately 4.6 billion kilograms were produced
2 Applications in industry and organic synthesis
Phthalic anhydride is a versatile intermediate in organic chemistry, in part because it is bifunctional and cheaply available. It undergoes hydrolysis and alcoholysis. Hydrolysis by hot water forms ortho-phthalic. This process is reversible: Phthalic anhydride re-forms upon heating the above 180 °C.
3 Hydrolysis of anhydrides is not typically a reversible process. However, phthalic is easily dehydrated to form phthalic anhydride due to the creation of a thermodynamically favorable 5-membered ring.
Organic synthesis
4 Phthalic anhydride is a precursor to a variety of reagents useful in organic synthesis. Important derivatives include phthalimide and its many derivatives. Chiral alcohols form half-esters (see above), and these derivatives are often resolvable because they form diastereomeric salts with chiral amines such as brucine. A related ring-opening reaction involves peroxides to give the useful peroxy