Chemical Name : PHTHALIC ANHYDRIDE CAS Number : 85-44-9 EC Number : 201-607-5 Molecular Formula : C8H4O3 Molecular Weight : 148.1 Synonyms : Phthalic Acid Anhydride, 1,3-Isobenxofurandione, 1,2 Benzene Carboxylic Acid Anhydride It is the anhydride of phthalic acid. Buy Phthalic Anhydride & Benzene Buyer and Importer from China - Buying Lead. Phthalic anhydride is the organic compound with the formula :-C6H4(CO)2O. Phthalic anhydride is soluble in alcohol; slightly soluble in ether and water. So large quantities of chemicals need to be imported and exported. …derivatives of industrial importance are maleic anhydride and phthalic anhydride, which are constituents of resins and plastics. Phthalic acid is an aromatic dicarboxylic acid, with formula C6H4(COOH)2. Phthalic acid, when found in tissues or biofluids arises from exposure to these phthalate products. So large quantiti Show More... We are interested in purchasing a trial 5000MT pure benzene(EINECS:200-753-7) . In a primary amine, it is attached to an alkyl group (shown by "R" in the diagram below) or a benzene ring. These compounds are prepared in bulk by the oxidation of benzene and naphthalene, respectively, as shown (V 2 O 5 is a vanadium catalyst). In the United States, one plant uses only n-butane and another uses n-butane for 20 %of its feedstock, but the primary raw material used in the production of Maleic Anhydride is benzene. A process for the preparation of nitrophthalic acid by the nitration of phthalic acid and/or phthalic anhydride using only nitric acid, said nitric acid having a concentration of at least about 95% by weight, and then recovering the nitrophthalic acid formed from the nitric acid solution. Phthalic acid is an aromatic dicarboxylic acid, with formula C6H4(CO2H)2. CIF Shanghai CHINA or CIF Chongqing CHINA. It was the first anhydride of a dicarboxylic acid to be used commercially. *Please select more than one item to compare These products arise from a common intermediate which decomposes in two ways (Scheme 10). 01 Jan, 2021 Buy Phthalic Anhydride & Benzene. H. 4. Oxidation of Naphthalene to Phthalic Anhydride; In analogy to the oxidative degradation of benzene to , lene yields phthalic anhydride: The original reaction conducted with stoichiometric amounts of oxidizing agents was replaced by BASF in 1916 by an air oxidation with V 2 O 5 catalysts. Search results for phthalic anhydride at Sigma-Aldrich. We are interested in purchasing a trial 5000MT pure benzene(EINECS:200-753-7) . In the first: If you compare this with the acyl chloride equation, you can see that the only difference is that ethanoic acid is produced as the second product of the reaction rather than hydrogen chloride. O. This white solid is an important … importance are maleic anhydride and phthalic anhydride, which are constituents of resins and plastics. (2) The synthetic processes of phthalic anhydride diglycol ester using sulfuric acid and methyl benzene sulfonic acid as catalysts, respectively, were investigated. CAS Number: 38103-06-9. Phthalic Anhydride is used as an intermediate in the manufacture of plasticisors, phthalates, phthaleins, benzoic acid, paints, polyester resins, dyes, pharmaceuticals. In the substance normally called "phenol", there isn't anything else attached to the ring as well. The Maleic Anhydride industry is converting old benzene plants and building new plants to use n-butane. Maleic anhydride is produced by vapor-phase oxidation of n -butane. Please send us your quotation ASAP.Suppliers from South korea and Russia are prefferred , however, others who have competitive prices will also be seriously considered.We are a large chemical and pharmaceutical company. : any of three isomeric acids C8H6O4 obtained by oxidation of various benzene derivatives. This is an example of a Friedel-Crafts acylation reaction. Phthalic anhydride is a principal commercial form of phthalic acid. It is the anhydride of phthalic acid. Phthalic anhydride is the cyclic dicarboxylic anhydride that is the anhydride of phthalic acid. These compounds are prepared in bulk by the oxidation of benzene and naphthalene, respectively, as shown (V 2 O 5 is a vanadium catalyst).. Read More 8 In 2000, the worldwide production of phthalic anhydride was estimated to be 3 232 000 tonnes per year. It is an isomer of isophthalic acid and terephthalic acid. Friedel-Crafts acylation reaction of ionic liquid benzene and phthalic anhydride , has important theoretical significance and application value . It has a role as an allergen. Synthesis of Benzimidazolium Ionic Liquids and Their Application in Extraction Separation, Study on Dehydration of tert-Butyl Alcohol Catalyzed by Functionalized Ionic Liquid, Investigation of Ionic Liquids as Solvent for Extractive Separation of Benzene and Cyclohexane, New Type of Catalyst in 2-amylanthraquinone Synthese, Study on Lysozyme Crystallization Induced by Ionic Liquids and Its Mechanism, Synthesis of Functional Ionic Liquids and Their Applications in High-performance Liquid Chromatography, Study on Applications of Ionic Liquids in Multicomponent Condensation Reactions, Study on the Synthesis and Application of Functional Ionic Liquids and Sulfoindolyl Alkyl Acids, Study on Synthesis of Anthraquinone from O-Benzoylbenzoic Acid over Phosphotungstic Acid Catalyst, Preparation of Ionic Liquid and Effects of Ionic Liquid on Dyeing Behaviors of Ramie Fabric, Study on Purification and Characterization of Tannase from Aspergillus Niger and Application in Non-aqueous Media, Non - ionic surface active agent of lamellar liquid crystal structure and its application, Synthesis of Room Temperature Ionic Liquids and Application of Ionic Liquids as Catalyst in Organic Synthesis, Effects of Solvent and Radiation on Rheological Property of Room Temperature Ionic Liquids, Study on the Reactions of Rosin and Turpentine Catalysized by Acdic Room-Temperature Ionic Liquids, Study on Synthesis and Characterization of Typical N, N’-dialkylimidazolium-based Ionic Liquids, Systhesis of Copolymers of Isobutyl and Tert-butyl Acrylate by Cationic Polymerization and Atom Transfer Radical Polymerization, Research on Esterification Catalysted by Room Temperature Ionic Liquid, The Application of Ionic Liquids in Fine Organic Synthesis, Fabrication and Analytical Application of Ionic Liquid BPPF. 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