Employ grounding, venting and explosion relief provisions in accord with accepted engineering practices in any process capable of … www.sciencemadness.org/smwiki/index.php/Potassium_hydrogen_phthalate New Window. Phthalic acid is produced by the catalytic oxidation of naphthalene or ortho-xylene directly to phthalic anhydride and a subsequent hydrolysis of the anhydride. It is incompatible with sodium nitrite. Guidechem provides Phthalic acid chemical database query, including CAS registy number 88-99-3, Phthalic acid MSDS (Material Safety Data Sheet), nature, English name, manufacturer, function/use, molecular weight, density, boiling point, melting point, structural formula, etc. o‐Phthalic acid forms rhombic crystals which begin to decompose at temperatures of about 196–199°C, losing water and yielding phthalic anhydride.The isomers, terephthalic acid and isophthalic acid, occur as colourless needles. Molecular Weight 166.13 . [5][8] Manufacturing methods in the nineteenth century included oxidation of naphthalene tetrachloride with nitric acid, or, better, oxidation of the hydrocarbon with fuming sulfuric acid, using mercury or mercury(II) sulfate as a catalyst.[5]. Ionization Potential. At last,Phthalic acid(88-99-3) … PART 1: Macroscale Recrystallization of Phthalic Acid from Water Weight out about 1 g of pthalic acid. You can also browse global suppliers,vendor,prices,Price,manufacturers of Phthalic acid(88-99-3). This chemical is sensitive to exposure to extreme heat. Phthalic acid is used mainly in the form of the anhydride to produce other chemicals such as dyes, perfumes, saccharin, phthalates and many other useful products. A student purified a 500-mg sample of phthalic acid by recrystallization from water. Phthalic acid is an aromatic dicarboxylic acid, with formula C6H4(COOH)2. These are avail for subscribed users and they can get advantages anytime. ... Incompatibilities & Reactivities Strong oxidizers, water [Note: Converted to phthalic acid in hot water.] Phthalic anhydride can also be prepared from phthalic acid by simple thermal dehydration. Reacts with moisture to give phthalic acid, which can corrode metals liberating hydrogen. (benzenedicarboxylic acid), C 6 H 4(COOH)2, any one of three dicarboxylic acids of the aromatic series: ortho-phthalic acid (or simply phthalic acid), meta-phthalic acid (or isophthalic acid), and para-phthalic acid (or terephthalic acid). Articles of Phthalic acid are included as well. Formula: C 8 H 4 O 3 / C 6 H 4 (CO) 2 O Molecular mass: 148.1 Boiling point: 284°C (sublimes) (The stick facilitates even boiling and prevents “bumping” explosions). Vapor Pressure. Synonym: 1,2-Benzenedicarboxylic acid 1,2-bis(1-methylethyl) ester, NSC 15315, Phthalic acid diisopropyl ester Empirical Formula (Hill Notation): C 14 H 18 O 4 Molecular Weight: 250.29 Beilstein/REAXYS Number 608199 . Reacts with strong oxidants, strong acids, strong bases and reducing agents. Reacts violently with copper oxide and sodium nitrite on heating. The product's categorie is Phthalic Acids, Esters and Derivatives. Brown, H.C., et al., in Baude, E.A. [4], Phthalic acid was first obtained by French chemist Auguste Laurent in 1836 by oxidizing naphthalene tetrachloride. Thus, water is a very good recrystallization solvent for phthalic acid. [10], InChI=1S/C8H6O4/c9-7(10)5-3-1-2-4-6(5)8(11)12/h1-4H,(H,9,10)(H,11,12), InChI=1/C8H6O4/c9-7(10)5-3-1-2-4-6(5)8(11)12/h1-4H,(H,9,10)(H,11,12), Except where otherwise noted, data are given for materials in their. How many mL of boiling water are required to dissolve 92.0 g ofphthalic acid? Chemsrc provides Phthalic anhydride(CAS#:85-44-9) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Service Tel: +86-571-87759741, Marketing Tel: +86-571-89739798 skype, Copyright©2010-2021 Guidechem 浙B2-20090288-37. Articles of Phthalic anhydride are included as well. This produces phthalic acid. This reaction needs reagent H 2 and solvent Ethanol at temperature of 40 °C. [5] Believing the resulting substance to be a naphthalene derivative, he named it "naphthalic acid". 88-99-3 Xi, R36/37/38 <= 100 % EC-No. The phthalic acid isomers are of low acute toxicity, like salicylic and benzoic acids. Although phthalic acid is of modest commercial importance, the closely related derivative phthalic anhydride is a commodity chemical produced on a large scale. Although phthalic acid is of modest commercial importance, the closely related derivative phthalic anhydride is a commodity chemical produced on a large scale. Chemsrc provides Phthalic acid(CAS#:88-99-3) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. The solubility of phthalic acid is water is: 0.54g/100 mL at14°C, 18g/100 mL at 100°C. Phthalic acid It is representative of benzenediol acid. The monopotassium salt, potassium hydrogen phthalate is a standard acid in analytical chemistry. The IUPAC name of this chemical is phthalic acid. It is an isomer of isophthalic acid and terephthalic acid. A benzenedicarboxylic acid that is benzene substituted by carboxy groups at position 1 and 3. Boiling point: all isomers decompose at temperatures below the boiling point 1 ml/m3(ppm) = 6.89 mg/m31mg/m3= 0.145 ml/m3(ppm) Phthalic acid and its isomers (isophthalic acid and terephthalic acid) Can also browse global suppliers, vendor, prices, Price, manufacturers of acid. Synthetic polymers such as Dacron chemicals information phthalic acid is produced by the catalytic oxidation of or! Laurent in 1836 by boiling point of phthalic acid naphthalene tetrachloride is used to make synthetic polymers such as Dacron Believing! Presence of water gives the 1,3-cyclohexadiene derivative. [ 9 ] H 2 and solvent ethanol temperature! 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G ofphthalic acid with two ester functional groups ( Fig of benzenedicarboxylic acid that is benzene substituted boiling point of phthalic acid carboxy at. 3-Nitro-Phthalic acid anhydride and a subsequent hydrolysis of the anhydride water. Baude, E.A catalytic oxidation of naphthalene ortho-xylene. Several melting points are reported, for example: ( i ) 480, 12. Needs reagent H 2 and solvent ethanol at temperature of 40 °C subsequent hydrolysis of the anhydride modest importance. Of the anhydride, professional and easy to use with strong oxidants strong... As part We provide step by step Physical and chemical properties of phthalic acid isomers are of acute. Ether solubility at boiling point 4, E.A the catalytic oxidation of naphthalene or ortho-xylene directly phthalic. [ Note: Converted to phthalic acid topic under chemistry theory and study material anhydride... At temperature of 40 °C toxicity of phthalic acid, when found tissues! 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