99% Phthalic Anhydride for Sale
Basic Info
Model No.: CAS NO.: 85-44-9
Product Description
Model NO.:CAS NO.: 85-44-9 Kind:Plasticizer Appearance:Powder Purity:99% Mf:C8h4o3 Application:Pharmaceutical Intermediates Place of Origin:China Specification:99% IMN Origin:Shandong Provice, China HS Code:2917350000 1. Packaging & Delivery
Packaging Detail: 25Kg knitted plastic bag with inner plastic bag 20MT/20'FCL
Delivery Detail: Within two week after receiving workable payment
2. Character
Phthalic anhydride is the organic compound with the formula C6H4(CO)2O. This anhydride of phthalic Acid, 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
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 acid. This process is reversible: Phthalic anhydride re-forms upon heating the acid above 180 ° C.
Hydrolysis of anhydrides is not typically a reversible process. However, phthalic acid is easily dehydrated to form phthalic anhydride due to the creation of a thermodynamically favorable 5-membered ring.
Organic synthesis
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 acid:
Precursor to dyestuffs
Phthalic anhydride is widely used in industry for the production of certain dyes. A well-known application of this reactivity is the preparation of the anthroquinone dye quinizarin by reaction with PARA-chlorophenol followed by hydrolysis of the chloride.
3. Use
Its mainly used in the manufacture of plasticizers, alkyd resins, and unsaturated polyester resins. Lesser uses are for phthalocyanine pigments, dyes, perfumes, pharmaceuticals, tanning and curing agents, insect repellants, and a variety of chemical intermediates. Contact us if you need more details on Price of Phthalic Anhydride. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Price Maleic Anhydride、Phthalic Anhydride 99.5%. If these products fail to match your need, please contact us and we would like to provide relevant information.
Packaging Detail: 25Kg knitted plastic bag with inner plastic bag 20MT/20'FCL
Delivery Detail: Within two week after receiving workable payment
2. Character
Phthalic anhydride is the organic compound with the formula C6H4(CO)2O. This anhydride of phthalic Acid, 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
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 acid. This process is reversible: Phthalic anhydride re-forms upon heating the acid above 180 ° C.
Hydrolysis of anhydrides is not typically a reversible process. However, phthalic acid is easily dehydrated to form phthalic anhydride due to the creation of a thermodynamically favorable 5-membered ring.
Organic synthesis
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 acid:
Precursor to dyestuffs
Phthalic anhydride is widely used in industry for the production of certain dyes. A well-known application of this reactivity is the preparation of the anthroquinone dye quinizarin by reaction with PARA-chlorophenol followed by hydrolysis of the chloride.
3. Use
Its mainly used in the manufacture of plasticizers, alkyd resins, and unsaturated polyester resins. Lesser uses are for phthalocyanine pigments, dyes, perfumes, pharmaceuticals, tanning and curing agents, insect repellants, and a variety of chemical intermediates. Contact us if you need more details on Price of Phthalic Anhydride. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Price Maleic Anhydride、Phthalic Anhydride 99.5%. If these products fail to match your need, please contact us and we would like to provide relevant information.
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