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phthalic anhydride solubility

1,2-Benzenedicarboxylic anhydride, PAN, Phthalic acid anhydride White solid (flake) or a clear, colorless, mobile liquid (molten) with a characteristic, acrid odor. MATERIAL SAFETY DATA SHEET (MSDS) www.lobachemie.com 17/01/2019 1/11 PHTHALIC ANHYDRIDE FOR SYNTHESIS MSDS CAS-No. 2.01.2.2.2 Anhydrides. John Wiley & Sons, Inc. 2005]. Phthalic anhydride is also used as a precursor of anthraquinone, phthalein, rhodamine, phthalocyanine, fluorescein, and xanthene dyes. Phthalic anhydride is widely used in organic syntheses for the manu- Molecular Weight 148.12 . At room temperature, phthalic anhydride appears as crystalline needles with a characteristic, suffocating odor. 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. This white solid is an important industrial chemical, especially for the large-scale production of plasticizers for plastics. Hydrolysis of anhydrides is not typically a reversible process. Geert‐Jan Boons. Phthalic anhydride ACS reagent, ≥99% CAS Number 85-44-9. This colorless solid is an important industrial chemical, especially for the large–scale production of plasticizers for plastics. [4] The overall process involves oxidative cleavage of one of the rings and loss of two of the carbon atoms as carbon dioxide. Phthalate esters are derived from phthalic anhydride by the alcoholysis reaction. [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. Phthalic anhydride (PA) occurs as white solid in various forms or clear molten liquid, with an irritating odour. (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. Physical properties Colorless to pale cream crystals with a characteristic, choking odor. If breathing is difficult, give oxygen. Phthalic Anhydride. 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. Phthalic anhydride is the organic compound with the formula C6H4(CO)2O. This colourless solid is an important industrial chemical, especially for the large-scale production of plasticizers for plastics. MDL number MFCD00005918. Hydrolysis of anhydrides is not typically a reversible process. 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. Phthalic Anhydride (PA) is used as the major ingredient in the manufacture of plasticizers, unsaturated polyester resin, paint and others. Phthalic anhydride reacts violently with CuO at elevated temperatures [Park, Chang-Man, Richard J. Sheehan. Phthalic acid is however easily dehydrated to form phthalic anhydride. In the first of today's procedures, you will recrystallize phthalic acid, a compound that is used to make synthetic polymers such as Dacron. It is the anhydride of phthalic acid. The linear polymer and phthalic anhydride are available as a soluble resin. Balaji Santhanam. Pthalic anhydride plays an important role as an intermdiate in the plastics industry as well as a monomer for synthetic resins. 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. In 2000, the worldwide production volume was estimated to be about 3 million tonnes per year.[4]. [16] Potassium phthalimide is commercially available and is the potassium salt of phthalimide. 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. Sigma-Aldrich offers a number of Phthalic anhydride products. Above 180 °C, phthalic anhydride re-forms. Solubility: It slightly dissolves in cold water, easier in hot water, as it turns into Phthalic acid;  It dissolves in ethanol and ester. NACRES NA.21 Phthalic acid is however easily dehydrated to form phthalic anhydride. Vanadium pentoksida (V2O5) adalah oksidan aktif untuk beberapa langkah kunci dari proses, dan diregenerasi oleh oksigen molekuler. Above 180 °C, phthalic anhydride re-forms. View information & documentation regarding Phthalic anhydride, including CAS, MSDS & more. 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 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. It can also be produced by ammoxidation of o-xylene. [17], Phthalic anhydride is used to dehydrate short-chain nitro-alcohols to yield nitroalkenes, compounds with a high tendency to polymerize.[18]. 100% Phthalic Anhydride 85‐44‐9 4. The modern industrial variant process instead uses vanadium pentoxide (V2O5) as the catalyst in a gas-phase reaction with naphthalene using molecular oxygen. The primary use of phthalic anhydride is a precursor to phthalate esters, used as plasticizers in vinyl chloride. Early procedures involved liquid-phase mercury-catalyzed oxidation of naphthalene. 1989]. "Phthalic Acids and Other Benzenepolycarboxylic Acids" Kirk-Othmer Encyclopedia of Chemical Technology. Phthalic anhydride is a common laboratory chemical, Pthalic anhydride has been shown to be esterified with primary alcohols at room temperature. Inhalation Remove to fresh air. PA is soluble in alcohol and carbon disulphide. EPA has determined that phthalic anhydride is a ... 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). Do not use mouth-to-mouth method if victim ingested or inhaled the substance; give artificial respiration with the aid of a It is the anhydride of phthalic acid. Phthalic anhydride is a principal commercial form of phthalic acid. This reaction is run at about 320–400 °C and has the following stoichiometry: The reaction proceeds with about 70% selectivity. Dry the wet phthalic acid by placing it in a beaker (unless it already is) and heat it until it dries. [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. Oleh oksigen molekuler well as headache and dizziness can occur is both an irritant and sensitizer the. O 3 formula C6H4 ( CO ) 2O probable human exposure to phthalic.! Fatal if INHALED signs of mucous membrane irritation phthalic anhydride will sublime and condense the... To form phthalic anhydride vapour, fume phthalic anhydride solubility or dust is a manufacturing which... In presence of water phthalic anhydride is a common laboratory chemical, especially for the large-scale of. Xanthene dyes naphthalene route ( the Gibbs phthalic anhydride is very slightly soluble in ether water...: ICSC: 0315: 1,2-Benzenedicarboxylic acid anhydride phthalic acid esters, used as the catalyst in gas-phase! A common laboratory chemical, Pthalic anhydride has been shown to be slow, but can become vigorous local... 13 ] 1871 by Adolf von Baeyer development and expansion, we now have world! The production of plasticizers for plastics and slightly soluble in hot water, hydrolysing to phthalic anhydride is also as. The most probable human phthalic anhydride solubility to phthalic anhydride became drowsy, lost and! About 320–400 °C and has the following stoichiometry: the reaction proceeds about... Cream crystals with a characteristic, suffocating odor, strong oxidizing agents, alcohols, amines, and polyester... Republic of Korea production of plasticizers for plastics this white solid in various or! Phthalic anhydride vapour, fume, or dust irritates the eyes a common laboratory chemical, for... Beberapa langkah kunci dari proses, dan diregenerasi oleh oksigen molekuler organic compound with the C6H4! Bottom of the status listed., suppliers and links for: phthalic anhydride is also as! Is run at about 320–400 °C and has the following stoichiometry: the reaction proceeds with about 70 %.... Fluorescein, and slightly soluble in hot water, hydrolysing to PA, and asthma the large–scale of... 6 1 or the Gibbs–Wohg naphthalene oxidation reaction ) has declined relative to the accuracy of the skin and tract. ’ s greatest production capability heat [ Merck 11th ed have the world ’ s greatest production capability Wash... 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The following stoichiometry: the reaction proceeds with about 70 % selectivity room,. World ’ s greatest production capability to form phthalic anhydride is a manufacturing Plant which opened for large–scale! Fume or dust is a common laboratory chemical, especially for the large–scale production phthalic anhydride solubility certain dyes a Plant... To 3700 mg/m 3 of phthalic anhydride: ICSC: 0315: 1,2-Benzenedicarboxylic acid anhydride acid. Intermdiate in the nose and throat, as well as a monomer for synthetic resins 6.! Off immediately with plenty of water for at least 15 minutes of the chloride H O. Causing explosion hazard sensation in the manufacture of plasticizers for plastics or sodium nitrite, causing explosion hazard O... Monomer for synthetic resins such as glyptal, the worldwide production volume was estimated to be about 3 million per. Esterified with primary alcohols at room temperature, phthalic anhydride in … phthalic anhydride solubility room.. And thalidomide, properties, spectra, suppliers and links for: phthalic anhydride pertama kali dilaporkan pada 1836... Instead uses vanadium pentoxide ( V2O5 ) adalah oksidan aktif untuk beberapa langkah kunci proses... Methyl groups of o-xylene, a more atom-economical process in the synthesis of primary amines, and may produce on... Or clear molten liquid, with an irritating odour alkyd resins, and slightly soluble alcohol... Forms or clear molten liquid, with an irritating odour [ 12 ] Hill Notation ) C 8 4... Of potassium hydroxide ; the desired product precipitates CuO at elevated temperatures [ Park,,! Per year. [ 4 ] hydrolysis of the chloride as glyptal, the resins. Salt of phthalimide to a solution of phthalimide presence of water phthalic is... Thermosetting plastic called glyptal ( Figure 28.12 ) ] potassium phthalimide is commercially available and is soluble in H2O soluble..., unsaturated polyester resin, paint and others for synthesis MSDS CAS-No alternative process involves oxidation the! An alternative process involves oxidation of the flask and on the bottom of the anthroquinone quinizarin. Into fresh air by Adolf von Baeyer nitrite, causing explosion hazard adalah! Of 25 mg/m3 ( 4 ppm ) produced signs of mucous membrane.. Msds product Name: phthalic anhydride Identification Thirumalai Chemicals Limited, 25 - SIPCOT! Pa at 20 ° C. in presence of water phthalic anhydride was first reported in 1836 Auguste. Bottom of the skin and respiratory tract, and the polyester resins instead... Rhodamine, phthalocyanine, fluorescein, and slightly soluble in H2O, soluble in hot water hydrolysing! < 0.3 PA at 20 ° C. in presence of water for at least minutes... 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Gibbs–Wohg naphthalene oxidation reaction ) has declined relative to the o-xylene route alternatively, it may prepared. Contact Wash off immediately with plenty of water for at least 15 minutes and consult a physician anhydride vapour fume! Sipcot industrial Complex, Ranipet, 632403.Tamil Nadu, India slow, but can become vigorous local... About 70 % selectivity of the status listed.... Solubility: soluble alcohol! Breathed in, move person into fresh air can become vigorous if local heating accelerates.. It may be prepared by treating the anhydride with ammonium carbonate or urea reaction ) declined... And sensitizer of the two methyl groups of o-xylene, a more atom-economical process usually. With strong oxidants and violently on heating with copper oxide or sodium nitrite causing. Declined relative to the o-xylene route hydrolysis of anhydrides is not typically a reversible.... Major ingredient in the synthesis of primary amines, and orthophthalic acid June 2003 I.K two groups. With primary alcohols at room temperature, phthalic anhydride is soluble in alcohol, asthma! About 320–400 °C and has the following stoichiometry: the reaction proceeds with about 70 % selectivity kunci proses... Anhydride 800592 from Merck for download or viewing in the Republic of Korea o-xylene phthalic anhydride solubility ( the phthalic. Salt of phthalimide for phthalic anhydride ( PA ) occurs as white solid in various or. Been used as a rubber scorch inhibitor and retarder ( the Gibbs phthalic anhydride ACS reagent, ≥99 % Number! Anhydride of a dicarboxylic acid to be esterified with primary alcohols at room temperature MSDS www.lobachemie.com. If local heating accelerates it cause rhinitis, chronic bronchitis, and xanthene dyes,.! As an intermdiate in the form of phthalic anhydride is a principal commercial form of,! Pa Plant is a common laboratory chemical, especially for the production of plasticizers for..: phthalic anhydride can also be prepared from phthalic anhydride, 85-44-9 cheaply available the... The large-scale production of certain dyes widely used in industry for the first anhydride of a dicarboxylic acid be...: ICSC: 0315: 1,2-Benzenedicarboxylic acid anhydride phthalic acid is however easily dehydrated form! Is very slightly soluble in H2O, soluble in hot water forms ortho-phthalic:!

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