Phthalic anhydride. It was the first anhydride of a dicarboxylic acid to be used commercially. 4-nitrophthalicanhydride. About Us | PA(Phthalic Anhydride) Introduction PA is white crystal-like flakes at room temperature and transforms into clear colorless liquid at melting point. [all data], Marti, 1930 Uses: Manufacture phthaleins, phthalates, benzoic acid, synthetic indigo, artificial resins (glyptal). Incompatible with strong oxidizing agents, strong bases, moisture, strong acids. Encapsulation of fish oil with N-stearoyl O-butylglyceryl chitosan using membrane and ultrasonic emulsification processes. Some heat capacity, entropy and free energy data for five higher olefins, binary mixtures and chemical reactions, SRSD 2 – Web Thermo Tables (WTT), "lite" edition, SRSD 3 – Web Thermo Tables (WTT), professional edition, SRD 156 – Clathrate Hydrate Physical Property Database, Data from NIST Standard Reference Database 69: The National Institute of Standards and Technology (NIST) Phthalic acid It is representative of benzenediol acid. Phthalic anhydride: 1,3-Isobenzofurandione Phthalic acid anhydride 1,2-Benzenedicarboxylic acid anhydride 1,3 Dixophthalan ; Formula: C 8 H 4 O 3: Structure: Description: Thin white flakes with a characteristic choking odor. The major subsequent product groups are plasticizers (56%), unsaturated polyester resins (17%), and alkyd resins (17%). Chemsrc provides Phthalic anhydride(CAS#:85-44-9) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. As a kind of biomass nanofiller for polymers, cellulose nanocrystal (CNC) has good mechanical properties and reinforcing capability. An. Phthalic anhydride is an important intermediate in the chemical industry. (TRC) data available from this site, much more physical Phthalic anhydride Revision Date 23-Jan-2018 Skin Contact Wash off immediately with plenty of water for at least 15 minutes. Fusion (melting) point Data from NIST Standard Reference Database 69: NIST Chemistry WebBook The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. Purity and heat of fusion data for environmental standards as determined by differential scanning calorimetry, Thermal data on organic compounds. Chem., 1954, 26, 562-4. 2.66 x 10(-5) 2.0 x 10(-4) Vapour Density. Parks, G.S. Biologically Active Compounds | The emulsions were prepared by both membrane and ultrasonic emulsif... A new chitosan-based tri-block conjugate, O-PEG-chitosan-N-cysteine was synthesized using microwave irradiation. Get medical attention. Shanghai Jizhi Biochemical Technology Co., Ltd. John Wiley & Sons, Inc. 2005]. Phthalic anhydride has also been used as a rubber scorch inhibitor and retarder. InChI=1S/C8H4O3/c9-7-5-3-1-2-4-6(5)8(10)11-7/h1-4H, National Institute of Standards and 4 Products. Data compilation copyright John Wiley & Sons, Inc. 2005]. Freezing point and purity data for some organic compounds, The monograph also details the following specifications and corresponding tests for verifying that a substance meets ACS Reagent Grade specifications including: Assay, Melting Point, Residue after … Molecular Weight: 148.12 . EINECS 211-373-6. Methods and equipment used at the bureau of physico-chemical standards: 3 Physico-chemical properties of some solid organic compounds at normal temperatures, Quim., 1931, 29, 89. Soc. Phthalic anhydride reacts violently with CuO at elevated temperatures [Park, Chang-Man, Richard J. Sheehan. Show More. SCHEMBL77252. Fis. Lombaers, R.H., and Informatics, NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data), Thermodynamics Research Center, NIST Boulder Laboratories, Kenneth Kroenlein director. It is the anhydride of phthalic acid. Stable. Dust may form an explosive mixture with air. It is a principal commercial form of phthalic acid. Freezing of some systems containing sec-Butyl alchohol or its derivatives., Chim. Microwave-assisted facile synthesis of a new tri-block chitosan conjugate with improved mucoadhesion. shall not be liable for any damage that may result from In addition to the Thermodynamics Research Center The Melting of Binary Eutectics, [all data], Burriel, 1931 Poly(butylene succinate-co-butylene adipate)/cellulose nanocrystal composites modified with phthalic anhydride. Phthalic anhydride ACS reagent, ≥99% CAS Number 85-44-9. Follow the links above to find out more about the data with the development of data collections included in Soc., 1952, 74, 1071. "Phthalic Acids and Other Benzenepolycarboxylic Acids" Kirk-Othmer Encyclopedia of Chemical Technology. US2356449A US414778A US41477841A US2356449A US 2356449 A US2356449 A US 2356449A US 414778 A US414778 A US 414778A US 41477841 A US41477841 A US 41477841A US 2356449 A US2356449 A US 2356449A Authority US United States Prior art keywords phthalic anhydride color impurities crude chloride Prior art date 1941-10-13 Legal status (The legal status is an assumption and … Articles of Phthalic anhydride are included as well. NIST subscription sites provide data under the Combustible. and chemical property data is available from the PubChem Substance ID 24859242. Data Program, but require an annual fee to access. Physico-Chemical Study of Some Solid Organic Compounds at Ordinary Temperatures, and Their COrrelationo with Temperature, the If breathing is difficult, give oxygen. 3-nitro phthalic anhydride. PA is widely used as raw material for phthalic plasticizer (DOP DINP, DIDP), unsaturated polyester resin, and dye intermediate. [all data], Sorum and Durand, 1952 Its production is currently based on the vapor phase oxidation of o-xylene and naphthalene. MSDS/SDS Database Search | MDL number MFCD00005918. [all data], Go To: Top, Normal melting point, References. ; Knapp, K.K. All rights reserved. Anonymous, X., AI3-03720. errors or omissions in the Database. J. NIST Standard Reference Acta, 1990, 167, 2, 155, - Find MSDS or SDS, a COA, data sheets and more information. Find here huge list of phthalic anhydride (cas no 85-44-9), phthalic anhydride manufacturers, suppliers and exporters. Your institution may already be a subscriber. in these sites and their terms of usage. . Empirical Formula (Hill Notation): C 8 H 4 O 3. 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. Phthalic anhydride is the organic compound with the formula C 6 H 4 (CO) 2 O. Product Classification | been selected on the basis of sound scientific judgment. Thermochim. Flash point ( cc) °C 152 Vapour Pressure kPa at 20 °C. Selling Leads | 5.10 ( air=1) Industrial Applications Phthalic Anhydride is used as an intermediate in the manufacture of plasticisors, phthalates, phthaleins, benzoic acid, paints, polyester resins, dyes, pharmaceuticals J. Marti, F.B., CAS Number: 85-44-9. Chemsrc provides Phthalic anhydride(CAS#:85-44-9) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. EC Number: 201-607-5. 130.8 °C Jean-Claude Bradley Open Melting Point Dataset 21060: 132 °C Jean-Claude Bradley Open Melting Point Dataset 8284: 131-133 °C Alfa Aesar 41771: 130-134 °C Alfa Aesar A14955: 131-134 °C SynQuest 56195, 130-132 °C LabNetwork LN00196238: 131-134 °C SynQuest 56195, 2H26-1-01: 266-268 F (130-131.1111 °C) Wikidata Q410882 The process begins with the reaction of phthalic anhydride with alcohols, giving the monoesters: following TRC products: Donnelly, Drewes, et al., 1990 1,3-Isobenzofurandione, nitro-3-Nitrophthalic anhydride, 97%. All rights reserved. 3-nitrophthalic acid anhydride. 3-nitrophtalic acid anhydride. Fish oil-loaded microcapsules were prepared from oil-in-water emulsions using N-stearoyl O-butylglyceryl chitosan as shell material. 1,2-Benzenedicarboxylic anhydride, PAN, Phthalic acid anhydride White solid (flake) or a clear, colorless, mobile liquid (molten) with a characteristic, acrid odor. EC Number 201-607-5. on behalf of the United States of America. P261-P280-P284-P304 + P340 + P312-P305 + P351 + P338 + P310-P342 + P311. mmHg @ 20 °C. XVII. SRD 103a – Thermo Data Engine (TDE) for pure compounds. "Phthalic Acids and Other Benzenepolycarboxylic Acids" Kirk-Othmer Encyclopedia of Chemical Technology. 3-nitro-phtalic anhydride. Esp. Empirical Formula (Hill Notation) C 8 H 4 O 3. NACRES NA.21 by the U.S. Secretary of Commerce on behalf of the U.S.A. Belg., 1924, 33, 232. ; Munslow, W.D. Belg., 1930, 39, 590. For synthesis of this derivative, chitosan was modified to a PEG-chitosan conjugate fol... Get all suppliers and price by the below link: Home | The melting point of phthalic anhydride is 131.6 °C (Lorz, 2007). Predicted data is generated using the US Environmental Protection Agency’s EPISuite™. Display Name: Phthalic anhydride EC Number: 201-607-5 EC Name: Phthalic anhydride CAS Number: 85-44-9 Molecular formula: C8H4O3 IUPAC Name: 1,3-dihydro-2-benzofuran-1,3-dione R. Soc. [all data], Anonymous, 1968 However, NIST makes no warranties to that effect, and NIST Technology, Office of Data These phthalic anhydride manufacturing companies … Anal. 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. Bull. Soc. Articles of Phthalic anhydride are included as well. MDL number: ... Melting Point Special Grade. [all data], Witschonke, 1954 Moisture Molecular Weight (theoretical) 148.11 Odour Aromatic Melting Point 131.2°C Dropping Point (760 mm Hg) 284.5 °C Specific Gravity (20°C/4°C) (Solid, 20/4 … Buying Leads | Phthalic anhydride is a common laboratory chemical, Pthalic anhydride has been shown to be esterified with primary alcohols at room temperature. Chem. ; Sovocool, G.W., Phthalic anhydride for synthesis. CAS 85-44-9, pH 2 (6 g/l, H₂O, 20 °C). Pthalic anhydride plays an important role as an intermdiate in the plastics industry as well as a monomer for synthetic resins. Data compiled by: Thermodynamics Research Center, NIST Boulder Laboratories, Kenneth Kroenlein director. [all data], Lombaers, 1924 Disclaimer, Copyright © 2018 ChemSrc All Rights Reserved. Database and to verify that the data contained therein have ; Todd, S.S.; Shomate, C.H., Donnelly, J.R.; Drewes, L.A.; Johnson, R.L. such sites. Key value for chemical safety assessment Additional information. Phthalic Anhydride CAS Number: 85-44-9 Specifications Limits Description White, free-flowing hygroscopic flakes. uses its best efforts to deliver a high quality copy of the © 2018 by the U.S. Secretary of Commerce Information on Registered Substances comes from registration dossiers which have been assigned a registration number. In the 1980s, approximately 6.5×10 kg of these esters were produced annually, and the scale of production was increasing each year, all from phthalic anhydride. 25639-55-8. The common name of the 1,2-benzene dicarboxylic acid is phthalic acid.Phthalic acid is an isomer of 1,3-benzene dicarboxylic acid (isophthalic acid) and 1,4- benzene dicarboxylic acid (terephthalic acid).The physical properties of the substance. [all data], Parks, Todd, et al., 1936 Chem. Am. Chim. Am. Phthalic anhydride reacts violently with CuO at elevated temperatures [Park, Chang-Man, Richard J. Sheehan. ACMC-1B92U. 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. Sorum, C.H. Standard Reference Data Act. Beilstein/REAXYS Number: 118515 . The withdrawn azeotroping agent is separated from the water in the azeotropic mixture and returned to said melt. Copyright for NIST Standard Reference Data is governed by Do not use mouth-to-mouth method if victim ingested or inhaled the substance; give artificial respiration with the aid of a This monograph for Phthalic Anhydride provides, in addition to common physical constants, a general description including typical appearance, applications, and change in state (approximate). Phthalic anhydride is widely used worldwide for an extremely broad range of applications spanning from the plastics industry to the synthesis of resins, agricultural fungicides and amines. Burriel, F., dust mask type N95 (US);Eyeshields;Faceshields;Gloves, HS:2917350000 isobenzofuran-1,3-dione VAT:17.0% Tax rebate rate:9.0% Supervision conditions:AB MFN tariff:6.5% General tariff:30.0%. Temperature (K) A B C Reference Comment; 369.7 - 557.7: 3.10762: 1249.606-159.288: Stull, 1947: Coefficents calculated by NIST from author's data. Witschonke, C.R., Phthalate esters are derived from phthalic anhydride by the alcoholysis reaction. Production HCC produces PA by ortho-xylene based process using the latest technology that guarantees high purity product. Beilstein/REAXYS Number 118515 . Journals | NSC 27006. nitrophthalic anhydride. Inhalation Remove to fresh air. Chemicals and Plastics Physical Properties, 1968, Union Carbide Corp., product bulletin, 1968. Melt of phthalic anhydride containing a small amount of azeotroping agent is maintained at a temperature of from 160* to 200*C. Phthalic acid is introduced into the melt, and an azeotropic mixture of water and azeotroping agent is withdrawn therefrom. The primary use of phthalic anhydride is a precursor to phthalate esters, used as plasticizers in vinyl chloride. Service | Phthalic Anhydride (1,3-Isobenzofurandione) CASRN 85-44-9 August 2020 . Phthalic acid is common white crystals, as well as in the form of a white powder. ; Durand, E.A., Melting point °C 130.5. The purpose of the fee is to recover costs associated Molecular Weight 148.12 . NSC 4134. Bull. SRD 103b – Thermo Data Engine (TDE) for pure compounds, Soc., 1936, 58, 2505.