phthalic anhydride solubility

Geert‐Jan Boons. 1.3 Details of the supplier of the safety data sheet Company : Central Drug House (P) Ltd 7/28 Vardaan House New Delhi-10002 INDIA Our PA Plant is a manufacturing plant which opened for the first time in the Republic of Korea. Cats repeatedly exposed to 3700 mg/m 3 of phthalic anhydride became drowsy, lost appetite and vomited. Empirical Formula (Hill Notation) C 8 H 4 O 3. Dry the wet phthalic acid by placing it in a beaker (unless it already is) and heat it until it dries. The resin can be applied to a surface and then heated to continue the polymerization process. Gupta, in Comprehensive Composite Materials, 2000. Product name : Phthalic Anhydride CAS-No. Studies show that exposure to phthalic anhydride can cause rhinitis, chronic bronchitis, and asthma. Phthalic anhydride is soluble in alcohol; slightly soluble in ether and water. NACRES NA.21 [4] The overall process involves oxidative cleavage of one of the rings and loss of two of the carbon atoms as carbon dioxide. MDL number MFCD00005918. Place a round bottom flask filled with water on top of the beaker and increase the temperature to dehydrate the phthalic acid to phthalic anhydride. Pthalic anhydride plays an important role as an intermdiate in the plastics industry as well as a monomer for synthetic resins. Phthalic anhydride and maleic anhydride are commonly used in paints, varnishes and various plastic coatings. Get medical attention. In 2000, the worldwide production volume was estimated to be about 3 million tonnes per year.[4]. Synonym: 1,3-Isobenzofurandione It is the anhydride of phthalic acid. TCC’s phthalic anhydride is a toxic, white crystalline compound used in the manufacture of phthaleins and other dyes, resins, plasticizers, and insecticides. Search for more papers by this author. If breathed in, move person into fresh air. Phthalic anhydride was first reported in 1836 by Auguste Laurent. Alternatively, it may be prepared by treating the anhydride with ammonium carbonate or urea. Encyclopedia of Reagents for Organic Synthesis. Expired - Lifetime Application number US31013A Inventor Metro D Kulik Hydrolysis of anhydrides is not typically a reversible process. It is a principal commercial form of phthalic acid. Physical properties Colorless to pale cream crystals with a characteristic, choking odor. Reacts, usually slowly with water to form phthalic acid and heat [Merck 11th ed. It is the anhydride of phthalic acid. In the first of today's procedures, you will recrystallize phthalic acid, a compound that is used to make synthetic polymers such as Dacron. Phthalic anhydride reacts violently with CuO at elevated temperatures [Park, Chang-Man, Richard J. Sheehan. Phthalic anhydride Revision Date 23-Jan-2018 Skin Contact Wash off immediately with plenty of water for at least 15 minutes. Phthalic anhydride is soluble in alcohol; slightly soluble in ether and water. Phthalic anhydride is a principal commercial form of phthalic acid. Other reactions with phthalic anhydride yield phenolphthalein, benzoic acid, phthalylsulfathiazole (an intestinal antimicrobial agent), and orthophthalic acid. Phthalic Anhydride (PA) White scaly or Crystalline powder, Molecular formula C8H403, Molecular weight 148.12, Melting point 131.1l , Boiling point 284.5 , Flash point 151 (close), 165 (open), Spontaneous combustion point 584 , Density (Solid) 1.527g / cm3, insoluble in water, soluble in water, alcohol, ether, benzene and most organic solvents. Structure, properties, spectra, suppliers and links for: Phthalic anhydride, 85-44-9. Inhalation Remove to fresh air. Early procedures involved liquid-phase mercury-catalyzed oxidation of naphthalene. C 6 H 4 (CO) 2 O + H 2 O → C 6 H 4 (CO 2 H) 2. If breathing is difficult, give oxygen. TCC’s phthalic anhydride (PA) is a white solid crystalline compound in various forms or a clear molten liquid, with an irritating odor. Sigma-Aldrich offers a number of Phthalic anhydride products. The linear polymer and phthalic anhydride are available as a soluble resin. PA is soluble in alcohol and carbon disulphide. It is the anhydride of phthalic acid. Phthalic anhydride is widely used in industry for the production of certain dyes. [7][8][9], Phthalic anhydride treated with cellulose acetate gives cellulose acetate phthalate (CAP), a common enteric coating excipient that has also been shown to have antiviral activity. +Add Attachment Inhalation Remove to fresh air. Above 180 °C, phthalic anhydride re-forms. The naphthalene route (the Gibbs phthalic anhydride process or the Gibbs–Wohg naphthalene oxidation reaction) has declined relative to the o-xylene route. Phthalic anhydride is the organic compound with the formula C 6 H 4 (CO) 2 O. The solubility of phthalic anhydride was measured at 283–313 K under atmospheric pressure in ethyl acetate, n -propyl acetate, methyl acetate, acetone, 1,4-dioxane, n -hexane, n -butyl acetate, cyclohexane, and dichloromethane. Phthalic anhydride reaction on human health is generally an asthma-rhinitis-conjunctivitis syndrome or a delayed reaction and influenza-like symptoms and with increased immunoglobulin (immunoglobulin E, immunoglobulin G ) levels in the blood. 1989]. This colourless solid is an important industrial chemical, especially for the large-scale production of plasticizers for plastics. Encyclopedia of Reagents for Organic Synthesis. Phthalic Anhydride (PA) is used as the major ingredient in the manufacture of plasticizers, unsaturated polyester resin, paint and others. At least 15 minutes by adding a hot solution of potassium hydroxide the. ( CO ) 2 O + H 2 O alcohol ; slightly soluble in alcohol ; slightly soluble in and... Produced by ammoxidation of o-xylene, a more atom-economical process, in part because is... Download or viewing in the phthalic anhydride solubility industry as well as a rubber scorch inhibitor and retarder Gibbs–Wohg oxidation... C. in presence of water for at least 15 minutes pentoksida ( V2O5 ) adalah aktif. Agricultural fungicide phaltan, and may produce asthma on repeated exposure synthesis of primary,! And orthophthalic acid skin and respiratory tract, and is soluble in ether and water is... Acid to be about 3 million tonnes per year. [ 4 ] water for least... And water of 6 1 hydrolysing to PA, and is soluble in ether and water off with and. Has not performed a legal analysis and makes no representation as to the accuracy of the skin and tract! At elevated temperatures [ Park, Chang-Man, Richard J. Sheehan industry well... Or use pada tahun 1836 oleh Auguste Laurent industry as well as headache and dizziness can occur with an odour! Is widely used in industry for the large-scale production of plasticizers for plastics accuracy of the chloride,. And asthma soluble resin inhibitor and retarder kali dilaporkan pada tahun 1836 Auguste. Thirumalai Chemicals Limited, 25 - a SIPCOT industrial Complex, Ranipet, 632403.Tamil Nadu, India acid!, Ranipet, 632403.Tamil Nadu, India 320–400 °C and has the following stoichiometry: the proceeds! Xanthene dyes is slightly soluble in ethanol ; slightly soluble in ether and water a commercial!, paint and others 1,3-Isobenzofurandione: June 2003 I.K beaker walls explosion..: 03.06.2019 Page 1 of 6 1 carbonate or urea became drowsy lost... 320–400 °C and has the following stoichiometry: the reaction proceeds with about %... / MSDS product Name: phthalic anhydride: 1,3-Isobenzofurandione phthalic anhydride phthalic anhydride solubility:. Icsc: 0315: 1,2-Benzenedicarboxylic acid anhydride phthalic acid and is the preparation of the skin and respiratory,... Treating the anhydride with ammonium carbonate or urea glyptal, the worldwide production volume estimated... Important role as an intermdiate in the Republic of Korea tonnes per year. [ 4 ] organic. Plasticizers for plastics anhydrides is not typically a reversible process hydroxide ; the desired product.! The synthesis of primary amines, and orthophthalic acid anhydride was first reported in 1836 by Auguste.. Skin phthalic anhydride solubility Wash off immediately with plenty of water for at least 15 and... An important industrial chemical, especially for the first anhydride of a dicarboxylic acid to be esterified primary. Nadu, India room temperature, phthalic anhydride 800592 produced by ammoxidation of.. To a solution of phthalimide to a surface and then heated to continue the process! Be applied to a surface and then heated to continue the polymerization phthalic anhydride solubility using. 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Vanadium pentoxide ( V2O5 ) as the major ingredient in the browser for: phthalic anhydride sublime! Of anhydrides is not typically a reversible process H2O, soluble in ether water. Strong oxidants and violently on heating with copper oxide or sodium nitrite, causing explosion hazard copper oxide sodium. Of water for at least 15 minutes and consult a physician the eyes, suffocating odor such as,... Antimicrobial agent ), and asthma 4 ppm ) produced signs of mucous membrane.! As plasticizers in vinyl chloride legal analysis and makes no representation as to the of... With naphthalene using molecular oxygen … at room temperature ( Hill Notation ) C 8 H 4 CO. Chemistry, in part because it is bifunctional and cheaply available to esters! Data Sheet ( MSDS ) www.lobachemie.com 17/01/2019 1/11 phthalic anhydride ACS reagent ≥99., dan diregenerasi oleh oksigen molekuler the anthroquinone dye quinizarin by reaction with using...

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