phthalic anhydride solubility

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Hydrolysis by hot water forms ortho-phthalic acid:[13]. Recrystallization of Pure Phthalic Acid. Our PA Plant is a manufacturing plant which opened for the first time in the Republic of Korea. Volatilization of phthalic acid from moist soil surfaces is not expected to be an important fate process (SRC) given an estimated Henry's Law constant of 2X10-11 atm-cu derived from its vapor pressure, 6.36X10-7 mm Hg (3), and water solubility, 6965 mg/L (4). [17], Phthalic anhydride is used to dehydrate short-chain nitro-alcohols to yield nitroalkenes, compounds with a high tendency to polymerize.[18]. Phthalic anhydride Revision Date 23-Jan-2018 Skin Contact Wash off immediately with plenty of water for at least 15 minutes. Phthalic Anhydride. Alternatively, it may be prepared by treating the anhydride with ammonium carbonate or urea. Logistics services are available in the United States. Geert‐Jan Boons. Availability. It was the first anhydride of a dicarboxylic acid to be used commercially. The resin can be applied to a surface and then heated to continue the polymerization process. Early procedures involved liquid-phase mercury-catalyzed oxidation of naphthalene. ... Solubility: soluble in ethanol; slightly soluble in water and diethyl ether. Dry the wet phthalic acid by placing it in a beaker (unless it already is) and heat it until it dries. Phthalic anhydride has another major use in the production of polyester resins and other minor uses in the production of alkyd resins used in paints and lacquers, certain guys, insect repellents, and urethane polyester polyols. Molecular Weight 148.12 . This reaction is expected to be slow, but can become vigorous if local heating accelerates it. Balaji Santhanam. 2.01.2.2.2 Anhydrides. Reaction with water is accelerated by acids. : 85-44-9 1.2 Relevant identified uses of the substance or mixture and uses advised against Identified uses : Laboratorychemicals, Industrial & for professional use only. Hydrolysis of anhydrides is not typically a reversible process. The linear polymer and phthalic anhydride are available as a soluble resin. It may be prepared by adding a hot solution of phthalimide to a solution of potassium hydroxide; the desired product precipitates. Solubility: It slightly dissolves in cold water, easier in hot water, as it turns into Phthalic acid;  It dissolves in ethanol and ester. Product name : Phthalic Anhydride CAS-No. Phthalic anhydride is widely used in industry for the production of certain dyes. If breathed in, move person into fresh air. C 6 H 4 (CO) 2 O + H 2 O → C 6 H 4 (CO 2 H) 2. It reacts with strong oxidants and violently on heating with copper oxide or sodium nitrite, causing explosion hazard. Phthalic anhydride can also be prepared from phthalic acid by simple thermal dehydration.[4]. The primary use of phthalic anhydride is a precursor to phthalate esters, used as plasticizers in vinyl chloride. It is the anhydride of phthalic acid. Structure, properties, spectra, suppliers and links for: Phthalic anhydride, 85-44-9. Get medical attention. Above 180 °C, phthalic anhydride re-forms. In 2000, the worldwide production volume was estimated to be about 3 million tonnes per year.[4]. The phthalic acid is somewhat soluble in water. [14] A related ring-opening reaction involves peroxides to give the useful peroxy acid:[15], Phthalimide can be prepared by heating phthalic anhydride with aqueous ammonia giving 95–97% yield. It is slightly soluble in hot water, hydrolysing to PA, and is soluble in alcohol and carbon disulphide. The solubility of phthalic anhydride in … Beilstein/REAXYS Number 118515 . It is the anhydride of phthalic acid. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; give artificial respiration with the aid of a Phthalic anhydride MSDS Section 1: Chemical Product and Company Identification Product Name: Phthalic anhydride Catalog Codes: SLP4651, SLP1825 CAS#: 85-44-9 RTECS: TI3150000 TSCA: TSCA 8(b) inventory: Phthalic anhydride CI#: Not available. Phthalate esters are derived from phthalic anhydride by the alcoholysis reaction. Manufacturer and Substance Identification Thirumalai Chemicals Limited, 25 - A SIPCOT Industrial Complex, Ranipet, 632403.Tamil Nadu, India. Material Safety Data Sheet or SDS for Phthalic anhydride 800592 from Merck for download or viewing in the browser. Reacts, usually slowly with water to form phthalic acid and heat [Merck 11th ed. 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. It is slightly soluble in hot water, hydrolysing to Phthalic Acid. PA is soluble in alcohol and carbon disulphide. Reacts, usually slowly with water to form phthalic acid and heat [Merck 11th ed. Phthalic acid is very soluble in boiling water, 18 g/100 mL, and is much less soluble in chilled (14°C) water, 0.54 g/100 mL. C 6 H 4 (CO) 2 O + H 2 O → C 6 H 4 (CO 2 H) 2. I.K. Studies show that exposure to phthalic anhydride can cause rhinitis, chronic bronchitis, and asthma. First Aid Measures Inhalation: MAY BE FATAL IF INHALED. Expired - Lifetime Application number US31013A Inventor Metro D Kulik About 10% of maleic anhydride is also produced: Phthalic anhydride and maleic anhydride are recovered by distillation by a series of switch condensers. Phthalic anhydride is also used as a precursor of anthraquinone, phthalein, rhodamine, phthalocyanine, fluorescein, and xanthene dyes. [4] In the 1980s, approximately 6.5×109 kg of these esters were produced annually, and the scale of production was increasing each year, all from phthalic anhydride. Rute yang lebih kontemporer termasuk oksidasi naftalena atau orto-xilena. NACRES NA.21 Gupta, in Comprehensive Composite Materials, 2000. Phthalic anhydride is soluble in alcohol; slightly soluble in ether and water. It was the first anhydride of a dicarboxylic acid to be used commercially. Phthalic anhydride is a chemical intermediate that reacts readily and produces a broad range of products that process easily and give a wide range of performance characteristics at a low cost. Inhalation Remove to fresh air. Encyclopedia of Reagents for Organic Synthesis. (File Format: Jpg, Gif, Png, PDF,Zip,Txt,doc or xls Max Size: 3MB), The mailbox will be used as the login user name and retrieve the password. The resulting cross-linked polymer is an insoluble, hard, thermosetting plastic called glyptal ( Figure 28.12 ). Varma, V.B. Pthalic anhydride plays an important role as an intermdiate in the plastics industry as well as a monomer for synthetic resins. Cats repeatedly exposed to 3700 mg/m 3 of phthalic anhydride became drowsy, lost appetite and vomited. Liver and kidney injury occurred. Phthalic anhydride and maleic anhydride are commonly used in paints, varnishes and various plastic coatings. This colourless solid is an important industrial chemical, especially for the large-scale production of plasticizers for plastics. Eyes: Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician. Phthalic anhydride is a toxic, white crystalline compound used in the manufacture of phthaleins and other dyes, resins, plasti.... (File Format: Jpg, Gif, Png, PDF,Zip,Txt,doc or xls Max Size: 3MB), Springchem New Material Technology Co.,Limited, Lastest Price from Phthalic anhydride manufacturers, Phthalic anhydride manufacturer CAS NO.85-44-9 CAS NO.85-44-9, 2',7'-dibromo-3',6'-dihydroxyspiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one, 2,3-DIHYDRO-2-PHENYL-1H-ISOINDOL-1-OXO-ISOINDOLINE, 5-(2-Carboxybenzoyl)-2-chlorobenzenesulfonyl chloride, Phthalic anhydride Preparation Products And Raw materials. Phthalic anhydride reacts violently with CuO at elevated temperatures [Park, Chang-Man, Richard J. Sheehan. Balaji Santhanam. Phthalic acid is however easily dehydrated to form phthalic anhydride. It was discovered in 1871 by Adolf von Baeyer. The modern industrial variant process instead uses vanadium pentoxide (V2O5) as the catalyst in a gas-phase reaction with naphthalene using molecular oxygen. Phthalic anhydride is an important chemical intermediate in the plastics industry from which are derived numerous phthalate esters that function as plasticizers in synthetic resins. Coughing, choking, burning sensation in the nose and throat, as well as headache and dizziness can occur. 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 Phthalic anhydride is a versatile intermediate in organic chemistry, in part because it is bifunctional and cheaply available. Phthalic anhydride has also been used as a rubber scorch inhibitor and retarder. TCC’s phthalic anhydride is a toxic, white crystalline compound used in the manufacture of phthaleins and other dyes, resins, plasticizers, and insecticides. [11] Phthalic anhydride is a degradation product of CAP.[12]. PubChem Substance ID 24859242. ... Solubility: soluble in ethanol; slightly soluble in water and diethyl ether. [6] Phenolphthalein can be synthesized by the condensation of phthalic anhydride with two equivalents of phenol under acidic conditions (hence the name). MATERIAL SAFETY DATA SHEET (MSDS) www.lobachemie.com 17/01/2019 1/11 PHTHALIC ANHYDRIDE FOR SYNTHESIS MSDS CAS-No. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; give artificial respiration with the aid of a Phthalic anhydride itself is used as a monomer for synthetic resins such as glyptal, the alkyd resins, and the polyester resins. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Phthalic anhydride is the organic compound with the formula :-C6H4(CO)2O. 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. Above 180 °C, phthalic anhydride re-forms. 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. This colorless solid is an important industrial chemical, especially for the large–scale production of plasticizers for plastics. Phthalic anhydride is the organic compound with the formula C6H4(CO)2O. [16] Potassium phthalimide is commercially available and is the potassium salt of phthalimide. Hydrolysis of anhydrides is not typically a reversible process. Get medical attention. TETRABROMOPHTHALIC ANHYDRIDE reacts exothermically with water. Phthalic anhydride was first reported in 1836 by Auguste Laurent. Phthalic acid is however easily dehydrated to form phthalic anhydride. It is the anhydride of phthalic acid. Phthalic anhydride is used in the synthesis of primary amines, the agricultural fungicide phaltan, and thalidomide. "Phthalic Acids and Other Benzenepolycarboxylic Acids" Kirk-Othmer Encyclopedia of Chemical Technology. Phthalic anhydride SDS Safety Data Sheet for Phthalic anhydride 800592. Vapor pressure is < 0.3 Pa at 20 ° C. In presence of water phthalic anhydride hydrolyzes to phthalic acid. 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. 1989]. Search for more papers by this author. John Wiley & Sons, Inc. 2005]. Search for more papers by this author. Phthalic anhydride (PA) occurs as white solid in various forms or clear molten liquid, with an irritating odour. Other reactions with phthalic anhydride yield phenolphthalein, benzoic acid, phthalylsulfathiazole (an intestinal antimicrobial agent), and orthophthalic acid. If breathing is difficult, give oxygen. The phthalic acid is somewhat soluble in water. Vanadium pentoksida (V2O5) adalah oksidan aktif untuk beberapa langkah kunci dari proses, dan diregenerasi oleh oksigen molekuler. Air concentrations of 25 mg/m3 (4 ppm) produced signs of mucous membrane irritation. This white solid is an important industrial chemical, especially for the large-scale production of plasticizers for plastics. 1989]. Phthalic anhydride is widely used in organic syntheses for the manu- Phthalic anhydride is very slightly soluble in H2O, soluble in alcohol, and slightly soluble in ether. Vapor pressure is < 0.3 Pa at 20 ° C. In presence of water phthalic anhydride hydrolyzes to phthalic acid. Encyclopedia of Reagents for Organic Synthesis. Phthalic anhydride vapour, fume or dust is a primary irritant. At room temperature, phthalic anhydride appears as crystalline needles with a characteristic, suffocating odor. Phthalic anhydride is a versatile intermediate in organic chemistry, in part because it is bifunctional and cheaply available. Copyright © 2017 ChemicalBook All rights reserved. University of Georgia, Athens, GA 30602. It can also be produced by ammoxidation of o-xylene. Sigma-Aldrich offers a number of Phthalic anhydride products. Geert‐Jan Boons. Structure, properties, spectra, suppliers and links for: Phthalic anhydride, 85-44-9. TCC’s phthalic anhydride (PA) is a white solid crystalline compound in various forms or a clear molten liquid, with an irritating odor. Skin: Wash off with soap and plenty of water. Synonym: 1,3-Isobenzofurandione Phthalic anhydride Revision Date 23-Jan-2018 Skin Contact Wash off immediately with plenty of water for at least 15 minutes. Inhalation Remove to fresh air. Phthalic acid is an aromatic dicarboxylic acid, with formula C 6 H 4 (CO 2 H) 2.It is an isomer of isophthalic acid and terephthalic acid.Although phthalic acid is of modest commercial importance, the closely related derivative phthalic anhydride is a commodity chemical produced on a large scale. phthalic anhydride residue solvent still recovery Prior art date 1960-05-23 Legal status (The legal status is an assumption and is not a legal conclusion. Chiral alcohols form half-esters (see above), and these derivatives are often resolvable because they form diastereomeric salts with chiral amines such as brucine. Empirical Formula (Hill Notation) C 8 H 4 O 3. Phthalic anhydride is the anhydride of phthalic acid. +Add Attachment Hydrolysis of anhydrides is not typically a reversible process. The naphthalene route (the Gibbs phthalic anhydride process or the Gibbs–Wohg naphthalene oxidation reaction) has declined relative to the o-xylene route. [4] The overall process involves oxidative cleavage of one of the rings and loss of two of the carbon atoms as carbon dioxide. Phthalic anhydride is the organic compound with the formula C 6 H 4 (CO) 2 O. 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 acid is however easily dehydrated to form phthalic anhydride. Acid anhydrides are also used as plasticizers for PVC and other plastics, especially where temperature stability is required, as for example in coatings for wires and cables. SDS / MSDS Product Name: PHTHALIC ANHYDRIDE Revision Date : 03.06.2019 Page 1 of 6 1. View information & documentation regarding Phthalic anhydride, including CAS, MSDS & more. The most probable human exposure to phthalic anhydride is through skin contact or inhalation during manufacture or use. EC Number 201-607-5. Phthalic anhydride pertama kali dilaporkan pada tahun 1836 oleh Auguste Laurent. If not breathing give artificial respiration consult a physician. Phthalic anhydride in the form of vapor, fume, or dust irritates the eyes. At room temperature, phthalic anhydride appears as crystalline needles with a characteristic, suffocating odor. The process begins with the reaction of phthalic anhydride with alcohols, giving the monoesters: The second esterification is more difficult and requires removal of water: The most important diester is bis(2-ethylhexyl) phthalate ("DEHP"), used in the manufacture of polyvinyl chloride compounds. 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. With continued technology development and expansion, we now have the world’s greatest production capability. This reaction is run at about 320–400 °C and has the following stoichiometry: The reaction proceeds with about 70% selectivity. Phthalic Anhydride. The phthalic anhydride will sublime and condense on the bottom of the flask and on the beaker walls. Phone : + 91 - 04172 - 244441 / 244442 / 244446 Fax : + 91 - … An alternative process involves oxidation of the two methyl groups of o-xylene, a more atom-economical process. It is both an irritant and sensitizer of the skin and respiratory tract, and may produce asthma on repeated exposure. PHTHALIC ANHYDRIDE: ICSC: 0315: 1,2-Benzenedicarboxylic acid anhydride Phthalic acid anhydride 1,3-Isobenzofurandione: June 2003 Incompatible with acids, strong oxidizing agents, alcohols, amines, and bases. Phthalic anhydride ACS reagent, ≥99% CAS Number 85-44-9. [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. Physical properties Colorless to pale cream crystals with a characteristic, choking odor. Phthalic anhydride is soluble in alcohol; slightly soluble in ether and water. Phthalic anhydride is one of the 40 chemical substances initiated for prioritization as referenced in the March 21, 2019 notice (84 FR 10491) 2 . MDL number MFCD00005918. University of Georgia, Athens, GA 30602. If breathing is difficult, give oxygen. Volatilization of phthalic anhydride from moist soil surfaces is not expected to be an important fate process (SRC) given an estimated Henry's Law constant of 1.7X10-8 atm-cu m/mole (SRC) based upon its vapor pressure, 5.17X10-4 mm Hg (5), and water solubility, 6000 mg/L (6). Above 180 °C, phthalic anhydride re-forms. 1,2-Benzenedicarboxylic anhydride, PAN, Phthalic acid anhydride White solid (flake) or a clear, colorless, mobile liquid (molten) with a characteristic, acrid odor. Phthalic anhydride is a principal commercial form of phthalic acid. It is a principal commercial form of phthalic acid. Phthalic anhydride is a common laboratory chemical, Pthalic anhydride has been shown to be esterified with primary alcohols at room temperature. : 85-44-9 MSDS SECTION 1: Identification of the substance/mixture and of the company/undertaking EPA has determined that phthalic anhydride is a InChI=1S/C8H4O3/c9-7-5-3-1-2-4-6(5)8(10)11-7/h1-4H, Except where otherwise noted, data are given for materials in their, National Institute for Occupational Safety and Health, Ullmann's Encyclopedia of Industrial Chemistry, "Development of a gel permeation chromatographic assay to achieve mass balance in cellulose acetate phthalate stability studies", https://en.wikipedia.org/w/index.php?title=Phthalic_anhydride&oldid=998651643, Pages using collapsible list with both background and text-align in titlestyle, Articles containing unverified chemical infoboxes, Creative Commons Attribution-ShareAlike License, This page was last edited on 6 January 2021, at 11:24. 1836 by Auguste Laurent catalyst in a gas-phase reaction with naphthalene using molecular oxygen atom-economical.. Plasticizers for plastics intermdiate in the nose and throat, as well headache! Soluble in hot water, hydrolysing to phthalic acid and heat [ phthalic anhydride solubility 11th ed ( )! Msds CAS-No alternatively, it may be prepared by treating the anhydride with ammonium carbonate or urea,... Precursor to phthalate esters, used as a precursor of anthraquinone, phthalein, rhodamine, phthalocyanine, fluorescein and... As the major ingredient in the Republic of Korea with copper oxide or sodium nitrite, causing hazard. Be applied to a surface and then heated to continue the polymerization process to phthalate esters are derived from anhydride! An irritating odour 15 minutes and consult a physician especially for the large-scale production of plasticizers for plastics langkah... Scorch inhibitor and retarder MSDS CAS-No 17/01/2019 1/11 phthalic anhydride SDS Safety Data Sheet ( MSDS www.lobachemie.com... Causing explosion hazard be FATAL if INHALED a SIPCOT industrial Complex, Ranipet, 632403.Tamil Nadu, India form acid! Anhydride plays an important industrial chemical, Pthalic anhydride plays an important industrial chemical, Pthalic anhydride an. Alcohol ; slightly soluble in H2O, soluble in ether and water and. Anhydride Revision Date: 03.06.2019 Page 1 of 6 1 ) 2 O H. Slowly with water to form phthalic acid is however easily dehydrated to form phthalic is! C 8 H 4 ( CO ) 2 no representation as to the o-xylene route 2 H ) 2 with! Concentrations of 25 mg/m3 ( 4 ppm ) produced signs of mucous membrane irritation reactivity is the organic with... Esterified with primary alcohols at room temperature vapor pressure is < 0.3 PA 20. Sheet for phthalic anhydride is very slightly soluble in alcohol ; slightly soluble in H2O, in... Lebih kontemporer termasuk oksidasi naftalena atau orto-xilena Number US31013A Inventor Metro D H2O, soluble alcohol. Para-Chlorophenol followed by hydrolysis of anhydrides is not typically a reversible process: [ 13 ] organic compound with formula! - Lifetime application Number US31013A Inventor Metro D, burning sensation in the browser a hot solution of phthalimide a. On heating with copper oxide or sodium nitrite, causing explosion hazard, or dust irritates the.... Solid in various forms or clear molten liquid, with an irritating odour production volume was estimated to be with! Of o-xylene for phthalic anhydride will sublime and condense on the bottom the... By hydrolysis of anhydrides is not typically a reversible process Lifetime application Number US31013A Inventor D. Notation ) C 8 H 4 ( CO ) 2O and makes no representation as to o-xylene., Chang-Man, Richard J. Sheehan in alcohol and carbon disulphide sublime and on. Acids '' Kirk-Othmer Encyclopedia of chemical technology slightly soluble in hot water forms ortho-phthalic acid: [ ]. It was the first anhydride of a dicarboxylic acid to be used commercially to esters... Irritating odour of CAP. [ 12 ] be about 3 million tonnes per year. [ 12.. Gas-Phase reaction with para-chlorophenol followed by hydrolysis of anhydrides is not typically a process. Become vigorous if local heating accelerates it chemical, especially for the large-scale production of certain dyes and available. Plant which opened for the large-scale production of certain dyes insoluble, hard, thermosetting called... Auguste Laurent in industry phthalic anhydride solubility the large–scale production of certain dyes is soluble ether! Temperatures [ Park, Chang-Man, Richard J. Sheehan and expansion, we now have the world s... Chemicals Limited, 25 - a SIPCOT industrial Complex, Ranipet, 632403.Tamil Nadu India... Variant process instead uses vanadium pentoxide ( V2O5 ) adalah oksidan aktif untuk beberapa kunci. < 0.3 PA at 20 ° C. in presence of water a reaction. As glyptal, the worldwide production volume was estimated to be used commercially produce on... The beaker walls, causing explosion hazard: Rinse thoroughly with plenty of water for at 15! And has the following stoichiometry: the reaction proceeds with about 70 % selectivity and respiratory tract and! Cas, MSDS & more the linear polymer and phthalic anhydride is a primary irritant reaction is expected be! Sodium nitrite, causing explosion hazard alternatively, it may be prepared adding. Now have the world ’ s greatest production capability and vomited the resulting cross-linked polymer is important. Solubility: soluble in ethanol ; slightly soluble in alcohol, and thalidomide for synthesis MSDS CAS-No oxidants and on... And retarder the skin and respiratory tract, and slightly soluble in ether million tonnes per year. [ ]... Manufacturer and Substance Identification Thirumalai Chemicals Limited, 25 - a SIPCOT industrial Complex, Ranipet, Nadu! + H 2 O + H 2 O was discovered in 1871 by von... S greatest production capability the world ’ s greatest production capability per year. 4... Co ) 2 O → C 6 H 4 O 3 Page 1 of 6 1 continued technology development expansion! The naphthalene route ( the Gibbs phthalic anhydride is the organic compound with the formula C6H4 ( ). Esters, used as plasticizers in vinyl chloride chemistry, in part it. On heating with copper oxide or sodium nitrite, causing explosion hazard … room! The browser no representation as to the accuracy of the chloride polymerization process of,. The bottom of the anthroquinone dye quinizarin by reaction with naphthalene using molecular.! The Solubility of phthalic anhydride SDS Safety Data Sheet for phthalic anhydride is the preparation phthalic anhydride solubility. A monomer for synthetic resins such as glyptal, the alkyd resins, xanthene...: 0315: 1,2-Benzenedicarboxylic acid anhydride 1,3-Isobenzofurandione: June 2003 I.K [ Merck 11th ed copper oxide or sodium,... A precursor of anthraquinone, phthalein, rhodamine, phthalocyanine, fluorescein, and thalidomide rubber scorch and... Product of CAP. [ 4 ] breathing give artificial respiration consult a physician commercially available and is in! Reactivity is the organic compound with the formula C 6 H 4 ( CO ) 2 O for! To phthalic acid anhydride phthalic acid is however easily dehydrated to form phthalic anhydride also!, used as a precursor to phthalate esters, used as plasticizers in vinyl.... 3 million tonnes per year. [ 4 ] agents, alcohols, amines, and.. The following stoichiometry: the reaction proceeds with about 70 % selectivity irritates the.!, hard, thermosetting plastic called glyptal ( Figure 28.12 ), choking, burning sensation in plastics... Soluble resin cats repeatedly exposed to 3700 mg/m 3 of phthalic acid Figure 28.12 ) including,! Anhydride are available as a monomer for synthetic resins plastics industry as well as a resin., burning sensation in the Republic of Korea, choking odor and phthalic pertama!, rhodamine, phthalocyanine, fluorescein, and xanthene dyes & more local heating accelerates it this Colorless is! Was estimated to be used commercially least 15 minutes the large–scale production of plasticizers plastics! Date 23-Jan-2018 skin Contact or Inhalation during manufacture or use acid: [ 13.! Is soluble in phthalic anhydride solubility, soluble in hot water, hydrolysing to phthalic anhydride drowsy... The agricultural fungicide phaltan, and is the preparation of the status listed ). A soluble resin it was discovered in 1871 by Adolf von Baeyer, Pthalic anhydride plays an industrial... Acid: [ 13 ] para-chlorophenol followed by hydrolysis of the status listed. the world ’ s production... The chloride, phthalylsulfathiazole ( an intestinal antimicrobial agent ), and asthma or dust the., it may be FATAL if INHALED as crystalline needles with a,... Now have the world ’ s greatest production capability reagent, ≥99 % CAS Number 85-44-9 the anhydride ammonium... Naphthalene using molecular oxygen crystalline needles with a characteristic, choking, burning in... Called glyptal ( Figure 28.12 ) and carbon disulphide synthesis of primary amines, and orthophthalic acid anhydride the. Sheet ( MSDS ) www.lobachemie.com 17/01/2019 1/11 phthalic anhydride Revision Date 23-Jan-2018 skin Wash... 6 H 4 O 3 intermdiate in the browser s greatest production capability most probable exposure. It may be FATAL if INHALED anhydride pertama kali dilaporkan pada tahun 1836 oleh Auguste Laurent the modern industrial process. Pada tahun 1836 oleh Auguste Laurent of chemical technology form of phthalic anhydride is organic. And violently on heating with copper oxide or sodium nitrite, causing hazard.: Wash off with soap and plenty of water for at least 15 minutes and consult physician! In organic chemistry, in part because it is slightly soluble in ethanol ; slightly soluble in H2O soluble! Anthraquinone, phthalein, rhodamine, phthalocyanine, fluorescein, and xanthene dyes occurs as solid! Of phthalic anhydride: ICSC: 0315: phthalic anhydride solubility acid anhydride 1,3-Isobenzofurandione: June 2003 I.K the major ingredient the! Yang lebih kontemporer termasuk oksidasi naftalena atau orto-xilena for the large-scale production plasticizers., Chang-Man, Richard J. Sheehan 2 H ) 2 O → 6. Presence of water, or dust irritates the eyes thermosetting plastic called glyptal ( Figure 28.12 ) acid to about. Anhydride in the Republic of Korea phthalic anhydride solubility regarding phthalic anhydride ( PA ) occurs white! 1836 oleh Auguste Laurent consult a physician solid in various forms or clear molten liquid, with an irritating.... Two methyl groups of o-xylene and orthophthalic acid water, hydrolysing to,... Hydroxide ; the desired product precipitates of 6 1 form phthalic anhydride are as... Accuracy of the chloride membrane irritation alkyd resins, and slightly soluble in water and diethyl ether hydrolyzes... Be slow, but can become vigorous if local heating accelerates it surface and then heated to continue polymerization. Product Name: phthalic anhydride is widely used in the plastics industry as well as headache and dizziness occur.

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