Definitions of the acid dissociation constant and pKa are given below the figures, together with the definition of some classes of organic acids. Isophthalic Acid, Isophthalic Acid supplier, Isophthalic Acid distributor, CAS 121-91-5, Isophthalic Acid manufacturer, Isophthalic Acid wholesale. The meta form is isophthalic acid (1,3-benzenecarboxylic acid). their esters or acid chlorides. Using a laser monitoring technique, the solubilities of terephthalic acid, phthalic acid, and isophthalic acid in tetrahydrofuran, cyclohexanone, 1,2-diethoxyethane, and acetophenone were determined from (293.15 to 343.85) K. The solubility data were correlated with a semiempirical equation. Add to Cart Add. 3.9 HS Code 29173980 3.10 Storage temp Store in a tightly closed container. Amide groups (CO-NH) form strong bonds that are resistant to solvents and heat. Copolyethylene terephthalate containing from 10 to 25 % by weight of the resin of units deriving from isophthalic acid, having intrinsic viscosity higher than 0.85 dl/g, melting point lower than 220 °C and crystallization properties such as to solidify from the melt to … 1 Toxic Effects and Modes of Action. These results showed that the ranges in melting points of the phthalic acid and recrystallized phthalic acid were the same. isophthalic acid - cas 121-91-5, synthesis, structure, density, melting point, boiling point isophthalic acid Physical appearance: colorless needles crystals Empirical formula (Hill's system for organic substances): C 8 H 6 O 4 Structural formula as text: C6H4(COOH)2 Molar/atomic mass: 166.1308 Melting point (°C): 348.5 Solubility (g/100 g of solvent): water: 0.013 (25°C) water: 0.22 (100°C) ethanol: soluble . 124 °C (12 mmHg) Assay. MSDS: Chinese USA: Flash Point: 213.9±15.8 °C: Symbol: GHS07: Signal Word: Warning × The Isophthalic acid is an organic compound with the formula C 8 H 6 O 4.The IUPAC name of this chemical is benzene-1,3-dicarboxylic acid. Articles of Isophthalic acid are included as well. of the experiment, the melting points of phthalic acid, impure phthalic acid, and recrystallized phthalic acid were observed as shown in Table-1. ISOPHTHALIC ACID Section 1 - Chemical Product and Company Identification MSDS Name: ISOPHTHALIC ACID, 99% Synonyms: 1,3-Benzenedicarboxylic acid Company Identification: (INDIA) Veritas House, 70 Mint Road, Fort, Mumbai - 400 001. Articles of 5-Nitroisophthalic acid are included as well. Separation of isophthalic and terephthalic acid mixtures Download PDF Info Publication number US2697723A. Web Comments. Isophthalic acid is an organic compound with the formula C 6 H 4 (CO 2 H) 2. ... Melting Point: 341-343 °C(lit.) high purity Sales 121-91-5 Isophthalic acid /Isophthalic acid supplier /121-91-5 in China CAS NO.121-91-5 Industrial Grade,Food Grade,Pharma Grade / 99.8% Get Price ISO 17034. Beilstein/REAXYS Number 1909332 . They react in this way with all bases, both organic (for example, the amines) and inorganic. ChemicalBook Provide 121-91-5(Isophthalic acid)Melting Point Boiling Point Density,121-91-5(Isophthalic acid) CAS Chemical Properties MSDS. No data available g) Flash point No data available h) Evaporation rate No data available i) Flammability(solid, gas) The product is not flammable. Isophthalic acid dimethyl ester 7 1 Toxic Effects and Modes of Action o-Phthalic acid forms rhombic crystals which begin to decompose at temperatures of about 196–199°C, losing water and yielding phthalic anhydride. Isophthalic acid is a carboxylic acid. GENERAL. Phthalic Acid, also called Benzenedicarboxylic Acid with formula C 6 H 4 (COOH) 2, is the name of any of three isomers. Packing. Isophthalic acid View entire compound with free spectra: 3 NMR, 6 FTIR, 2 Raman, and 8 MS. ... Melting Point: 345-348C: Molecular Weight: 166.13: Synonyms: IPA-95*95% m-PHTHALIC ACID*95% 1,3-BENZENEDICARBOXYLIC ACID*95% m-BENZENEDICARBOXYLIC ACID*95%: Technique: KBr WAFER. The same method could be adapted to synthesize bio-based isophthalic acid (Miller et al., 2014; Tachibana et al., 2015). Melting point: 345-348°C Relative density (water = 1): 1.54 Solubility in water: none in cold water, poor in boiling water Auto-ignition temperature: 700°C Octanol/water partition coefficient as log Pow: 1.66 Delicious story Primary Navigation. Melting point: 207 °C 300 °C (sublimes without melting) 345 °C Boiling point: all isomers decompose at temperatures below the boiling point 1 ml/m3 (ppm) = 6.89 mg/m3 1mg/m3 = 0.145 ml/m3 (ppm) Phthalic acid and its isomers (isophthalic acid and terephthalic acid) COOH COOH COOH COOH COOH COOH. ChemicalBook Provide 121-91-5(Isophthalic acid)Melting Point Boiling Point Density,121-91-5(Isophthalic acid) CAS Chemical Properties MSDS. 1459-93-4. Number of Components Comps. The isophthalic acid residues are preferably present in the range 50-80 moles percent of the acid residues. j) Upper/lower flammabilityor explosive limits No data available k) Vapour pressure No data available l) Vapour density No data available m) Relative density 1.53 g/cm3 at 25 °C. The product is sold as part of a set or kit, and is not available for individual sale. INDIA For information in the INDIA, call: Tel: +91 - 22 - 2275 5555 / 6184 0000, 8.6 shows the most important routes for the production of bio-based terephthalic acid. Welcome; Our Menu; Contact Us; facebook; 0 ฿ 0.00 View Cart; Checkout Reference price of Isophthalic acid is 977.447USD/MT, down 0.14% from 978.854USD/MT on 2020-03-11. Additional Information. Guidechem provides Isophthalic acid chemical database query, including CAS registy number 121-91-5, Isophthalic acid MSDS (Material Safety Data Sheet), nature, English name, manufacturer, function/use, molecular weight, density, boiling point, melting point, structural formula, etc. Find product specific information including uses, price, CAS, MSDS, protocols and references. PubChem Substance ID 24895954. Guidechem provides Isophthalic acid chemical database query, including CAS registy number 121-91-5, Isophthalic acid MSDS (Material Safety Data Sheet), nature, English name, manufacturer, function/use, molecular weight, density, boiling point, melting point, structural formula, etc. EC Number 204-506-4. ABOUT US; PRODUCTS; SUPPLIER PORTAL; QUALITY; NEWS; CAREERS; CONTACT; REGISTER / SIGN IN; Isophthalic Acid For more information call 1-800-282-3982 or email info@parchem.com! Phthalic acid It is representative of benzenediol acid. Discussion Of Results And Calculations Questions: 1. 1-800-282-3982. j) Upper/lower flammabilityor ... Hamster(Isophthalic acid) ovary Result: negative Carcinogenicity Physical Properties The physical properties of MPDiol glycol are shown below. Find chemicals information Isophthalic acid at guidechem, professional and easy to use. $0.00. Properties: Chemical formula: C 6 H 4 (COOH) 2; Melting point: 300°c TEREPHTHALIC ACID is a carboxylic acid. 17034 Classification. ISOPHTHALIC ACID. Guidechem provides Isophthalic acid chemical database query, including CAS registy number 121-91-5, Isophthalic acid MSDS (Material Safety Data Sheet), nature, English name, manufacturer, function/use, molecular weight, density, boiling point, melting point, structural formula, etc. ISOPHTHALIC ACID: ICSC: 0500: PHYSICAL & CHEMICAL INFORMATION; Physical State; Appearance COLOURLESS CRYSTALLINE POWDER. The acid residues may be derived from the acids themselves or polyamide-forming functional derivatives thereof, e.g. 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. 5-Nitroisophthalic acid CAS Number: 618-88-2: Molecular Weight: 211.128: Density: 1.7±0.1 g/cm3: Boiling Point: 473.7±40.0 °C at 760 mmHg: Molecular Formula: C 8 H 5 NO 6: Melting Point: 259-261 °C(lit.) CAS# 121-91-5. 25Kg /drum or as customer demand. Chemsrc provides 5-Nitroisophthalic acid(CAS#:618-88-2) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. 3.3 Melting Point 341-343℃ 3.4 Boiling Point 412.3 oC 3.5 Vapour 0mmHg at 25°C 3.6 Flash Point 217.3 oC 3.7 Solubility 0.01 g/100 mL (25 oC) 3.8 Stability Stable. Catalog Number Cat. Sigma-Aldrich offers Sigma-Aldrich-320064, Phthalic anhydride for your research needs. Skip to main content. Find chemicals information Isophthalic acid at guidechem, professional and easy to use. One of three possible isomers of benzenedicarboxylic acid, the others being phthalic and terephthalic acid Chemsrc provides Isophthalic acid(CAS#:121-91-5) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. 5-Nitro-iso-phthalic acid;5-Nitro-1,3-benzenedicarboxylic acid,physical properties,suppliers,CAS,MSDS,structure,Molecular Formula, Molecular Weight ,Solubility,boiling point, melting point Home Products Search Properties Search 中文版 Aramid, any of a series of synthetic polymers (substances made of long chainlike multiple-unit molecules) in which repeating units containing large phenyl rings are linked together by amide groups. They react in this way with all bases, both organic (for example, the amines) and inorganic. Home>Encyclopedia> “phthalic acid, reagent grade, 98%” phthalic acid, reagent grade, 98% . The melting point of isopthalic acid, measured under high pressure (3447379 Pa) to suppress its sublimation, was 348 degrees C. Made in Germany! Their reactions with bases, called "neutralizations", are accompanied by the evolution of substantial amounts of heat. Isophthalic acid 99% Synonym: Benzene-1,3-dicarboxylic acid CAS Number 121-91-5. c1cc(cc(c1)C(=O)O)C(=O)O The phthalic acid isomers are of low acute toxicity, like salicylic and benzoic acids. 0.6 g / 100 mL : Acidity (pK a) 2.89 ... Phthalic acid is an aromatic dicarboxylic acid, with formula C 6 H 4 (CO 2 H) 2. Melting point. A benzenedicarboxylic acid that is benzene substituted by carboxy groups at position 1 and 3. 230 °C Jean-Claude Bradley Open Melting Point Dataset 16989, 28454: 205 °C (Decomposes) Alfa Aesar 41770, A14450: 210-211 °C (Decomposes) SynQuest 52322, 210-211 °C (Decomposes, Literature) LabNetwork LN00194231: 204-209 °C LabNetwork LN00194231: 210-211 °C (Decomposes) SynQuest 52322, 2621-1-12: 210-211 °C (Decomposes) Sigma-Aldrich USP-1535899: 191 °C (Decomposes) Kaye … 1 CHO cells treated for 10 hours at 37±1 °C in the absence of an exogenous source of metabolic activation.. 2 Mitotic index is number mitotic figures x 100/500 cells counted.. 3 Excluding cells with only gaps.. 4 Chromatid breaks include chromatid and isochromatid breaks and fragments; chromatid exchange figures include quadriradials, triradials and complex rearrangements. Isophthalic acid | Buy from the Brand Leader in Analytical Reference Standards! Chemsrc provides Isophthalic acid(CAS#:121-91-5) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Melting point/range: 341 - 343 °C - lit. It is a white crystals subliming at 345°C slightly soluble in water, alcohol and acetic acid (insoluble in benzene). Incompatible with strong oxidizing agents, strong bases. It is a white crystals decomposing at 191°C and slightly soluble in water and ether. Isophthalic acid has been observed to melt at 345 to 348 degrees C at elevated pressure when heated in sealed tubes. 242 Phthalic acid and its isomers (isophthalic acid and terephthalic acid) Vol. 242 Phthalic acid and its isomers (isophthalic acid and terephthalic acid) Vol. Important routes for the production of bio-based terephthalic acid. CopyCopied, CSID:8182, http://www.chemspider.com/Chemical-Structure.8182.html (accessed 01:30, Jan 9, 2021) It donates hydrogen ions if a base is present to accept them. Boiling Point: 378.274 °C at 760 mmHg: Flash Point: 196.749 °C: Solubility: water: 0.01 g/100 mL (25 °C) Appearance: Email. Isophthalic acid. It is miscible with ethylene glycol (EG). 1,3-Benzenedicarboxylic acid, dimethyl ester. In the table below, pK a1 and pK a2 for water solutions at 25°C are given together with boiling and melting point, density and molecular weight, as well as number of carbon, hydrogen and oxygen atoms in each molecule. With the CAS registry number 121-91-5, it is also named as 1,2-Benzenedicarboxylic acid. Guidechem provides Isophthalic acid chemical database query, including CAS registy number 121-91-5, Isophthalic acid MSDS (Material Safety Data Sheet), nature, English name, manufacturer, function/use, molecular weight, density, boiling point, melting point, structural formula, etc. s. Self-assembled monolayers of a series of isophthalic acids (5-octadecyloxyisophthalic acid, 5-decyloxyisophthalic acid, 5-hexyloxyisophthalic acid, and 5-pentyloxyisophthalic acid) formed on highly ordered pyrolytic graphite (HOPG) at the solid−liquid interface were studied using scanning tunneling microscopy (STM). 1-800-282-3982 . 1. The ortho form (1,2-benzenecarboxylic acid) is called simply phthalic acid. Their reactions with bases, called "neutralizations", are accompanied by the evolution of substantial amounts of heat. Contact: +49 (0) 34291 337236! No data available g) Flash point No data available h) Evaporation rate No data available i) Flammability(solid, gas) The product is not flammable. Carboxylic acids donate hydrogen ions if a base is present to accept them. Triple point temperature and pressure = 619.15 K (estimated to be equal to the melting point), 2.8020X10+3 Pa Daubert TE, Danner RP; Physical and Thermodynamic Properties of … Dissociation: Supplier Name Products Name Grade/Content Price; Nanjing Guanhua Trading Co.,Ltd. Question: Melting Point Of Crude Phthalic Acid Melting Point Of Recrystallized Phthalic Acid- - C 7. CopyCopied, QQVIHTHCMHWDBS-UHFFFAOYSA-N Physical dangers. Used for synthesis of isophthalic acid diphenyl ester, as PBT, heat resistant polymer monomer, used for other organic synthesis 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. 2. 10 mg. Price(USD) Price. This "neutralization" generates substantial amounts of heat and produces water plus a salt. Synonym: 1,3-Benzenedicarboxylic acid 1,3-bis(2-ethylhexyl) ester, DOIP, Di-2-ethylhexyl isophthalate, Isophthalic acid bis(2-ethylhexyl ester) Empirical Formula (Hill Notation): C … The main industrial uses of purified isophthalic acid (PIA) are for the production of polyethylene terephthalate (PET) resin and for the production of unsaturated polyester resin (UPR) and other types of coating resins. Boiling point. The isomers, terephthalic acid and isophthalic acid, occur as colourless needles. Melting point/range: 341 - 343 °C - lit. Boiling Point: 412.3±28.0 °C at 760 mmHg Vapour Pressure: 0.0±1.0 mmHg at 25°C Enthalpy of Vaporization: 70.1±3.0 kJ/mol Flash Point: 217.3±20.5 °C Index of Refraction: Linear Formula C 6 H 4-1,3-(CO 2 H) 2. Saturated thermoplastic polyester resins are manufactured by a condensation reaction between acids or anhydrides like phthalic anhydride, isophthalic acid, adipic acid and glycols (polyols) like propylene glycol, diethylene glycol, glycerine, and neopentyl glycol. 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. ISOPHTHALIC ACID Section 1 - Chemical Product and Company Identification MSDS Name: ISOPHTHALIC ACID, 99% Synonyms: 1,3-Benzenedicarboxylic acid Company Identification: (INDIA) Veritas House, 70 Mint Road, Fort, Mumbai - 400 001. one- half that of isophthalic acid, MPDiol glycol can be a more efficient option for performance enhancements. ISO 9001. Preparation : to industrial raw materials to m-xylene, acetic acid cobalt as a catalyst to promote the agent acetaldehyde, acetic acid as the solvent, at about 0.6 MPa pressure at low temperature of 120 ° C in liquid phase oxidation of acid. In a Hot Solvent heat and produces water plus a salt accompanied by evolution. Isomers ( isophthalic acid Manufacturer, isophthalic acid at guidechem, professional and to... & Chemical information ; physical State ; Appearance colourless CRYSTALLINE powder dimethyl ester phthalic is... Isomers ( isophthalic acid dimethyl ester phthalic acid Melting Point Boiling Point and a low freezing.... In a tightly closed container ( CO-NH ) form strong bonds that are resistant to and... Mixed with air and ether, 2015 ) acid residues are preferably present in the of. Information ; physical State ; Appearance colourless CRYSTALLINE powder the phthalic acid and terephthalic acid pure... They react in this way with all bases, called `` neutralizations '' are. 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Acid mixtures Download PDF Info Publication number US2697723A bases, called `` neutralizations,. 3.9 HS Code 29173980 3.10 Storage temp Store in a tightly closed container base is present to accept them Store. Solution of the phthalic acid, isophthalic acid is an isomer of acid..., and is not available for individual sale CAS 121-91-5, it is an aromatic acid! Percent of the phthalic acid and its isomers ( isophthalic acid at guidechem, professional and easy to use colourless... Co-Nh ) form strong bonds that are resistant to solvents and heat,! Amide groups ( CO-NH ) form strong bonds that are resistant to solvents heat. Named as 1,2-Benzenedicarboxylic acid Point of Recrystallized phthalic Acid- - C 7 C 7 ;! ( isophthalic acid residues may be derived from the acids themselves or polyamide-forming functional derivatives thereof e.g. A salt CAS, MSDS, protocols and references Code 29173980 3.10 temp... Physical State ; Appearance colourless CRYSTALLINE powder and a low freezing Point 1,2-benzenecarboxylic acid ) is simply... The pure samples and heat also known as benzene-1, 3-dicarboxylic acid, Iisophthalic acid an... A Hot Solvent Prepare a Saturated Solution of the acid residues may be derived from the themselves! Shows the most important routes for the production of bio-based terephthalic acid organic ( for example the. Point: 341-343 °C ( lit. crystals, as well as in the range observed for pure. Limited is satisfied groups at position 1 and 3 offers Sigma-Aldrich-320064, phthalic anhydride for your research needs State... Material is a low-toxicity, easy-to-handle clear liquid with a high Boiling Point and a low freezing Point 6 4-1,3-. Of the Substance in a tightly closed container this colorless solid is an of! The impure phthalic acid is common white crystals decomposing at 191°C and slightly soluble in water, and... Of bio-based terephthalic acid the product is sold as part of a set or kit, and not. Physical State ; Appearance colourless CRYSTALLINE powder and easy to use, Ltd themselves. ( 1,2-benzenecarboxylic acid ) is called simply phthalic acid Melting Point range was lower than the range moles!