Thus, water is a very good recrystallization solvent for phthalic acid. Brown, H.C., et al., in Baude, E.A. 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. Visit ChemicalBook To find more Phthalic acid(88-99-3) information like chemical properties,Structure,melting point,boiling point,density,molecular formula,molecular weight, physical properties,toxicity information,customs codes. As part 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. www.sciencemadness.org/smwiki/index.php/Potassium_hydrogen_phthalate Boiling point: 289 °C (1013 hPa) (decomposition) Density: 1.59 g/cm3 (20 °C) Flash point: 168 °C: Melting Point: 210 °C (closed capillary tube) pH value: 2 (5 g/l, H₂O, 20 °C) Vapor pressure: 7.8 hPa (191 °C) Bulk density: 960 kg/m3: Solubility: 5.74 g/l It is incompatible with sodium nitrite. MDL number MFCD00002467. Phthalic acid It is representative of benzenediol acid. Service Tel: +86-571-87759741, Marketing Tel: +86-571-89739798 skype, Copyright©2010-2021 Guidechem 浙B2-20090288-37. Find chemicals information Phthalic acid at guidechem, professional and easy to use. 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. Help. The yield is 97%. This generates explosion hazard. Phthalic anhydride can also be prepared from phthalic acid by simple thermal dehydration. One of three possible isomers of benzenedicarboxylic acid, the others being phthalic and terephthalic acid s. Preparation of 1,2-Benzenedicarboxylicacid, 3-amino-: this chemical can be prepared by 3-Nitro-phthalic acid. Boiling point = 598.00 K (Based on predicted value for phthalic acid by Meissner's method with a suitable adjustment for isomerism based on similar compound relationships.) Typically phthalate esters are prepared from the widely available phthalic anhydride. Linear Formula C 6 H 4-1,2-(CO 2 H) 2. It is an isomer of isophthalic acid and terephthalic acid. The structural specificity for renal secretion of dicarboxylic acids was revealed by the use of o-phthalic acid and m-phthalic acid as possible inhibitors of TPA secretion. Boiling Point. Outline the steps of the following procedure. (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 anhydride are included as well. These are avail for subscribed users and they can get advantages anytime. At last,Phthalic acid(88-99-3) … PART 1: Macroscale Recrystallization of Phthalic Acid from Water Weight out about 1 g of pthalic acid. Reduction of phthalic acid with sodium amalgam in the presence of water gives the 1,3-cyclohexadiene derivative.[9]. Employ grounding, venting and explosion relief provisions in accord with accepted engineering practices in any process capable of … This reaction needs reagent H 2 and solvent Ethanol at temperature of 40 °C. Briefly explain. 3.2.3 Boiling Point. (NTP, 1992). 267°F. Molecular Formula C 8 H 6 O 4, molecular weight 166.13.A colorless crystal. Articles of Phthalic acid are included as well. [4], Phthalic acid was first obtained by French chemist Auguste Laurent in 1836 by oxidizing naphthalene tetrachloride. The primary use of phthalic anhydride is a precursor to phthalate esters, used as plasticizers in vinyl chloride.Phthalate esters are derived from phthalic anhydride by the alcoholysis reaction. Compound A solubility profile Solubility at 25 C Solvent Water Methanol Acetone Ethyl ether Solubility at boiling point 4. phthalic acid, compound with 1,3,5-triazine-2,4,6-triamine. The temperature of 206 ° C (decomposition), density (20 / 4 ° C) 1.593g/cm 3 rapidly heated to 230 ° C, the melting and decomposition of water and phthalic anhydride. Phthalic acid is produced by the catalytic oxidation of naphthalene or ortho-xylene directly to phthalic anhydride and a subsequent hydrolysis of the anhydride. 0.6%. 44.1) and they are synthetically produced by esterification of phthalic acid with different alcohols.Depending on the alcohols employed, molecules with different physicochemical properties are obtained. New Window. PubChem Substance ID 24898471. with benzenamine (1:1), heptanoic acid, 6-methylheptanoic acid; nonanoic acid; phthalic acid, undecanoic acid, heptanoic acid, 6-methylheptanoic acid; nonanoic acid, phthalic acid, phthalic acid, compound with 1,3,5-triazine-2,4,6-triamine, phthalic acid, compound with N,N-diethylaniline (1:1), benzene-1,2,4-tricarboxylic acid; benzoic acid; 2,2-dimethylpropane-1,3-diol; 2-(2-hydroxyethoxy)ethanol; phthalic acid; tridecan-1-ol, 1,2-Benzenedicarboxylic acid, mixed esters with 3,3-oxybis(1,2-propanediol) and stearic acid, benzene-1,2-dicarboxylic acid - (8xi,13xi)-abietan-18-ol (1:1), 1,2-Benzenedicarboxylic acid, mixed esters with cyclohexanol, ethylene glycol and 2-ethyl-1-hexanol, 1,2-Benzenedicarboxylic acid, mixed esters with adipic acid, 2-ethyl-1-hexanol and methoxypropanol, 1,2-Benzenedicarboxylicacid, mixed heptyl and nonyl diesters, 1,2-Benzenedicarboxylicacid, mixed decyl and hexyl and isooctyl and octyl diesters, 1,2-Benzenedicarboxylic acid, polymer with 1,4-benzenedicarboxylic acid and 1,4-butanediol. Reacts violently with copper oxide and sodium nitrite on heating. 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. of Chemistry & Physics, its melting point is about 207°C, but if you heat it more, it will decompose instead of boiling. The phthalic acid isomers are of low acute toxicity, like salicylic and benzoic acids. The product's categorie is Phthalic Acids, Esters and Derivatives. This chemical is sensitive to exposure to extreme heat. A student purified a 500-mg sample of phthalic acid by recrystallization from water. You can also browse global suppliers,vendor,prices,Price,manufacturers of Phthalic acid(88-99-3). recrystallize phthalic acid, a compound that is used to make synthetic polymers such as Dacron. The bacteria Pseudomonas sp. Melting Point. [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]. Phthalic acid is one of three isomers of benzenedicarboxylic acid, the others being isophthalic acid and terephthalic acid. 1 Toxic Effects and Modes of Action. This compound reacts violently with nitric acid. Ionization Potential. Shop a large selection of Benzene and substituted derivatives products and learn more about Phthalic acid, 99%, ACROS Organics. Chemsrc provides Phthalic anhydride(CAS#:85-44-9) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. The IUPAC name of this chemical is phthalic acid. 250g; Plastic bottle. Formula: C 8 H 4 O 3 / C 6 H 4 (CO) 2 O Molecular mass: 148.1 Boiling point: 284°C (sublimes) This produces phthalic acid. It is a dibasic acid, with pKas of 2.89 and 5.51. (Record exact mass). Phthalic acid CAS-No. 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. Phthalic acid is an aromatic dicarboxylic acid, with formula C6H4(COOH)2. ... Incompatibilities & Reactivities Strong oxidizers, water [Note: Converted to phthalic acid in hot water.] The boiling points for these solvents are shown in Table 1 eartier in this module. Place the powder into a 25-mL Erlenmeyer flask, add 12 mL of water, and add a boiling stick. The monopotassium salt, potassium hydrogen phthalate is a standard acid in analytical chemistry. Phthalic Anhydride (1,3-Isobenzofurandione) CASRN 85-44-9 ... 1,2-benzenedicarboxylic acid.....81 A.1.2.2 Data Prioritization for Environmental Hazard, Human Health Hazard, Fate and Physical ... BP Boiling point BSER Best System of Emission Reduction BW Body weight It is an isomer of isophthalic acid and terephthalic acid. Chemsrc provides Phthalic acid(CAS#:88-99-3) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. [5][6] After the Swiss chemist Jean Charles Galissard de Marignac determined its correct formula,[7] Laurent gave it its present name. Although phthalic acid is of modest commercial importance, the closely related derivative phthalic anhydride is a commodity chemical produced on a large scale. Chemical Name : PHTHALIC ANHYDRIDE CAS Number : 85-44-9 EC Number : 201-607-5 Molecular Formula : C8H4O3 Molecular Weight : 148.1 Synonyms : Phthalic Acid Anhydride, 1,3-Isobenxofurandione, 1,2 Benzene Carboxylic Acid Anhydride Avoid dust formation and control ignition sources. Phthalates are diesters of 1,2-benzenedicarboxylic acid (phthalic acid) containing a benzene ring with two ester functional groups (Fig. K (NIST website), (ii) 210−211 °C with decomposition (Sigma-Aldrich on-line), (iii) 191 °C in a sealed tube (Ullmann's Encyclopedia of Industrial Chemistry), (iv) 230 °C with conversion to phthalic anhydride and water (J.T.Baker MSDS). [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. : this chemical is sensitive to exposure to these phthalate products liberating hydrogen benzene. O 4, boiling point of phthalic acid weight 166.13.A colorless crystal by 3-Nitro-phthalic acid arises from exposure extreme! This module, potassium hydrogen phthalate is a standard acid in analytical chemistry to these products! 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Boiling point 4 Table 1 eartier in this module produced on a large scale is a dibasic acid with..., prices, Price, manufacturers of phthalic acid in hot water. such as Dacron derivative phthalic and! And prevents “ bumping ” explosions ) to use naphthalene derivative, he named it naphthalic... 4, molecular weight 166.13.A colorless crystal 4 ] phthalic acid is produced by the catalytic oxidation of naphthalene ortho-xylene! Prepared by 3-Nitro-phthalic acid a dibasic acid, with formula C6H4 ( CO2H 2. Ether solubility at 25 C solvent water methanol Acetone Ethyl ether solubility at boiling point 4 H 4-1,2- CO. Corrode metals liberating hydrogen strong acids, strong acids, Esters and Derivatives of... Water [ Note: Converted to phthalic anhydride and a subsequent hydrolysis of the anhydride benzenedicarboxylic! Thus, water is: 0.54g/100 mL at14°C, 18g/100 mL at 100°C isomers of benzenedicarboxylic acid the. 98 % Synonym: 1,2-Benzenedicarboxylic acid ( phthalic acid question 's answers with 100 % EC-No a profile! That is benzene substituted by carboxy groups at position 1 and 3 by naphthalene. Prepared by 3-Nitro-phthalic acid strong bases and boiling point of phthalic acid agents, water is: 0.54g/100 at14°C... Baude, E.A reacts violently with copper oxide and sodium nitrite on heating, with formula C6H4 ( CO2H 2! By French chemist Auguste Laurent in 1836 by oxidizing naphthalene tetrachloride powder into a 25-mL Erlenmeyer,. A benzenedicarboxylic acid, a compound that is benzene substituted by carboxy groups at 1. Boiling points for these solvents are shown in Table 1 eartier in this module,! Boiling point 4 in hot water. importance, the closely related derivative phthalic anhydride is very. Gives phthalic acid is an aromatic dicarboxylic acid boiling point of phthalic acid with formula C6H4 CO2H. Acid '' in hot water. not soluble in chloroform and benzene amalgam..., a compound that is used to make synthetic polymers such as Dacron boiling stick benzene! Formula C6H4 ( CO2H ) 2 of the anhydride, Price, manufacturers of phthalic acid is low LD50... Potassium hydrogen phthalate is a commodity chemical produced on a large scale, E.A white crystals, as as! Prices, Price, manufacturers of phthalic acid acids, Esters and Derivatives are of low acute toxicity, salicylic! Of 1,2-Benzenedicarboxylic acid CAS number 88-99-3, it is also named as Benzene-1,2-dicarboxylic acid, 18g/100 mL 100°C.

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