An example would be the seperation of starcth and acetylsalicylic acid in aspirin. The measured solubility data were correlated with the λh equation (Buchowski–Ksiazczak equation) and the calculated results show good agreements with measured data. Organic Preparations and Procedures International. Article Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. In an equilibrium cell, the aqueous solubility of m-phthalic acid (m-PTA), o-phthalic acid (o-PTA), p-phthalic acid (p-PTA) was determined from 298 to … The crystals appear as cotton candy. Stereoselective Synthesis of Polysubstituted Hydroquinolines in a One-pot, Pseudo-Eight-Component Strategy. Solubility data of m-phthalic acid in ethanol from different sources: (♦) from Ref. Outline the steps of the following procedure. & Account Managers, For Insoluble in chloroform. 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 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. 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. 10 publications. Joan Fraga-Dubreuil, Gürbüz Çomak, Alasdair W. Taylor, Martyn Poliakoff. The concentration of the solution was determined by a gravimetrical method. https://doi.org/10.1080/00304948.2019.1677992, https://doi.org/10.1007/s10953-016-0479-5, https://doi.org/10.1016/j.fluid.2013.05.014. Your Mendeley pairing has expired. Benzoic acid is only partially soluble in methanol. It has a weak smell and is irritating to skin. These metrics are regularly updated to reflect usage leading up to the last few days. The solubility of m-phthalic acid has been measured in co-solvent mixtures conformed by acetone and ethanol over the entire solvent composition and in the temperature range of (278–323) K. Experimental results showed that the solubility always increased with increasing temperature in the binary solvent mixtures with constant solvent composition, indicating the endothermic character of the dissolution … The apparent molar enthalpies of o-phthalic acid in the two systems have been determined and provide a heat transmission basis for the design of a crystallizer. Solubilities of Cefepime Hydrochloride in Water + (Ethanol, 1-Propanol, or 2-Propanol) from (278.15 to 308.15) K. Li Gao, Jing-kang Wang and Hong-xun Hao. E-mail:  [email protected] Tel/Fax:  +86-371-63887318. Why Is Ethanol A Bad Choice For Recrystallizing Phthalic Acid? Solubility of Benzoic Acid and Substituted Benzoic Acids in Both Neat Organic Solvents and Organic Solvent Mixtures. Librarians & Account Managers. Chemical Properties PHTHALIC ACID,C6H4(COOH)2, mp 208 °C (ortho), 330 °C (meta and iso), the ortho form sublimes and the meta and iso forms decompose with heat, sp gr 1.593 (ortho). Thus, water is a very good recrystallization solvent for phthalic acid. Unter Normalbedingungen ist Methanol eine klare, farblose, entzündliche und leicht flüchtige Flüssigkeit mit alkoholischem Geruch. Solubilities of Phthalic Acid and o-Toluic Acid in Binary Acetic Acid + Water and Acetic Acid + o-Xylene Solvent Mixtures. 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. Phthalic acid is used as an active ingredient in polyesters and alkyd resins. The solubilities of 1,3-benzenedicarboxylic acid (isophthalic acid) in water, acetic acid, and acetic acid + water solutions with mass fractions of acetic acid on a solute-free basis of 0.2056, 0.4083, and 0.6082, respectively, were measured. Phthalic acid, benzylbutyl ester in Methanol 1000μg/mL, Fisher Chemical™ Benzoyl derivatives Benzene and substituted derivatives Methanol , auch Methylalkohol (veraltet Holzgeist oder Holzalkohol), ist eine organisch-chemische Verbindung mit der Summenformel CH 4 O (Halbstrukturformel: CH 3 OH) und der einfachste Vertreter aus der Stoffgruppe der Alkohole. Phthalic acid is very slightly soluble in H2O, soluble in alcohol, and slightly soluble … You have to login with your ACS ID befor you can login with your Mendeley account. When the powered mixture is poured into hot ethanol and allowed to cool, the starch will settle to the bottom and can be seperated from the acetylsalicylic acid/ethanol solution in a separatory funnel. Although phthalic acid is of modest commercial importance, the closely related derivative phthalic anhydride is a commodity chemical produced on a large scale. In the residue, maleic acid, benzoic acid (BA), telluric acid and traces of other organic compounds are present in the by-product stream. IUPAC-NIST Solubility Data Series. Get the latest public health information from CDC: https://www.coronavirus.gov. Dust explosion possible if in powder or granular form, mixed with air. Solubility of Acesulfame Potassium in Ethanol + Water and Methanol + Water Systems from (275.84 to 322.90) K. Experimental Determination of Solubilities of Betulin in Acetone + Water and Ethanol + Water Mixed Solvents at T = (278.2, 288.2, 298.2, 308.2, and 318.2) K. Solubility of Atractylenolide III in Hexane, Ethyl Acetate, Diethyl Ether, and Ethanol from (283.2 to 323.2) K. Maryam Fatahpour, Mojtaba Lashkari, Nourallah Hazeri, Fatemeh Noori Sadeh, Malek Taher Maghsoodlou. The solubilities of m-phthalic acid in acetone, ethanol and acetic ether were experimentally determined in the temperature range from 278 K up to near the normal boiling points at about 5 K intervals by a gravimetric method. Urine samples were also subjected to acid, alkaline, and enzymatic hydrolysis by beta-glucuronidase or aryl sulphatase. Solubility of citric acid in water, ethanol, n-propanol and in mixtures of ethanol+water. Citations are the number of other articles citing this article, calculated by Crossref and updated daily. https://doi.org/10.1016/j.fluid.2008.01.014. Resorcinol is a polar molecule due to the O-H groups present in the molecule. Phthalates are produced by the reaction of phthalic anhydride with appropriate alcohols from methanol up to isodecanol (C13), either as a straight chain or with some branched in the presence of concentrated sulphuric acid as a catalyst. College of Chemical Engineering, Zhengzhou University, Zhengzhou, Henan 450002, People's Republic of China. dissolved : slightly soluble in water and ether, dissolved in methanol and ethanol, is not soluble in chloroform and benzene. The experimental data were correlated with the Apelblat equation. It is considered a green acid as it is less toxic and corrosive in comparison to mineral acids.1 The aqueous MSA solution has been considered a model electrolyte for electrochemical processes. Copyright © 2008 Elsevier B.V. All rights reserved. This article is cited by Question: The Solubility Data For Phthalic Acid In Different Solvents Is Given Below. Phthalic anhydride is manufactured by the partial oxidation of ortho xylene in the presence of V. 2. Physical dangers. Yu Li, Li Xu, Fu-an Wang, Hai-hong Jin, and Bao-zeng Ren. Please reconnect, Authors & The apparent molar enthalpies of o-phthalic acid in the two systems have … There is almost 60% of (BA) in the residue sample, which compels to recover This is easy to explain using the small alcohol vs large alcohol argument: the hydrogen-bonding, hydrophilic effect of the carboxylic acid group is powerful enough to overcome the hydrophobic effect of a single methyl group on acetic acid, but not the larger hydrophobic effect of the 6-carbon benzene group on benzoic acid. Get article recommendations from ACS based on references in your Mendeley library. The excess molar mixing enthalpies at the saturation points were calculated based on the regressed model parameter and the interactions between m-phthalic acid and the solvents were qualitatively discussed. Slightly soluble in water, methanol and ether. Phthalic acid concentration in the urine was measured after esterification with methanol by electron capture gas chromatography, and expressed in terms of urinary creatinine. Corresponding author. . Rapid and clean synthesis of phthalimide derivatives in high-temperature, high-pressure H2O/EtOH mixtures. Equations for the Partition of Neutral Molecules, Ions and Ionic Species from Water to Water–Methanol Mixtures. COVID-19 is an emerging, rapidly evolving situation. Phthalic acid does not form this derivative so it does not interfere. Toxic effects (This section is for information only and should not be taken as the basis of OSHA policy.) Chemical dangers The solution in water is a weak acid. It is soluble in water (143 g/L at 25˚C), more soluble in ethanol (240 g/L) but poorly soluble in ether (18 g/L). ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. , ( ) this work, ( ) from Ref. O. It is also used as plasticizers for polyvinyl chloride and other polymers. R. Franco. Journal of Physical and Chemical Reference Data. Soluble in water, alcohol and etherSoluble in alcohol. catalyst. Resorcinol was soluble only in room temperature water perhaps suggesting that another polar solvent must be utilized to determine a more suitable solvent whereas benzoic acid was soluble in both non-polar solvents of toluene and hexane. Reviewers, Librarians 2 . PHTHALIC ACID: ICSC: 0768: PHYSICAL & CHEMICAL INFORMATION; Physical State; Appearance CRYSTALLINE POWDER. Acetic acid, however, is quite soluble. The overall σ of 159 data points was 0.70 %. As we will learn when we study acid-base chemistry in a later chapter, carboxylic acids such as benzoic acid are relatively weak acids, and thus exist mostly in the acidic (protonated) form when added to pure water. You’ve supercharged your research process with ACS and Mendeley! Applications. Uses Phthalate esters plasticizers. Please note: If you switch to a different device, you may be asked to login again with only your ACS ID. Find more information about Crossref citation counts. Acetic acid, however, is quite soluble. The phthalic anhydride will sublime and condense on the bottom of the flask and on the beaker walls. The derivative is stable and has a high UV absorptivity, the latter contributing to the high sensitivity of the analytical procedure. Zhipeng Shen, Qinbo Wang, Linhui Chen, Xiaoxiao Sheng, and Yinchuan Pei . Mauro Lúcio N. Oliveira, Ricardo A. Malagoni, Moilton. Find more information on the Altmetric Attention Score and how the score is calculated. 5 /TiO. 1.1.2. Phthalic anhydride in the form of vapor, fume, or dust irritates the eyes. The solubility of o-phthalic acid in methanol + water and methanol + butyl acetate was measured at temperatures ranging from (295.87 to 359.75) K using a laser-monitoring observation technique at atmospheric pressure. Powdered phthalic anhydride (74 g, 0.5 mol) and methanol (100 cm 3, 2.47 mol) were heated under reflux with magnetic stirring on an oil bath for 8 h.The clear solution was distilled to remove most of the methanol. Oxalic acid is sometimes available as wood bleach or as beehive disinfecting powder, from beekeeping suppliers. Water was determined to be a suitable solvent for phthalic acid and toluene was determined to be the suitable solvent for anthracene. Copyright © 2021 Elsevier B.V. or its licensors or contributors. Find more information about Crossref citation counts. As part of your pre-lab assignment, calculate the volume of boiling water required to dissolve 1 g of phthalic acid (use the data given above). solubility water: soluble 1,000 g/L at 20 °C density 1.481 g/mL at 25 °C (lit.) 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. It is also useful in the production of anthraquinone, phenolphthalein and phthalocyanine pigments. We use cookies to help provide and enhance our service and tailor content and ads. Phthalic acid | H2C8H4O4 or C8H6O4 | CID 1017 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. Dry the wet phthalic acid by placing it in a beaker (unless it already is) and heat it until it dries. The overall σ of 159 data points was 0.70 %. Why Is Water A Good Choice For Recrystallizing Phthalic Acid? both compound are soluble in water but starch is not soluble in ethanol. Formula: C 8 H 6 O 4 / C 6 H 4 (COOH) 2 Molecular mass: 166.1 Decomposes at 191°C Relative density (water = 1): 1.6 Solubility in water, … It has a melting point of 102 °C and sublimes between 149 - 160 °C. the Altmetric Attention Score and how the score is calculated. Excess alcohols are recovered and recycled and phthalates are purified by vacuum distillation and/or activated charcoal. We had also tried to measure the solubility of m -phthalic acid in petroleum ether with different boiling range (303–333 K, 333–363 K and 363–393 K), but most results show that the solubilities are too low to be precisely determined by our present analytical method. terephthalic 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): 425 Solubility (g/100 g of solvent): acetone: insoluble water: … Availability. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Phthalic acid is a polar molecule so it is logical that it dissolved partially in cold water and ethanol and dissolved completely in hot water and ethanol. The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. By continuing you agree to the use of cookies. Terephthalic acid is an organic compound with formula C 6 H 4 (CO 2 H) 2.This white solid is a commodity chemical, used principally as a precursor to the polyester PET, used to make clothing and plastic bottles.Several million tonnes are produced annually. 99. The solubility of o-phthalic acid in methanol + water and methanol + butyl acetate was measured at temperatures ranging from (295.87 to 359.75) K using a laser-monitoring observation technique at atmospheric pressure. use : used in the manufacture of dyes, polyester resin, polyester, plasticizers and other drugs. The experimental data were correlated with the Apelblat equation. Phthalic anhydride can also be prepared from phthalic acid by simple thermal dehydration. 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. It has a predicted solubility rate of 2.246 M in methanol, which is low and means that it will only partially dissolve. In contrast, phthalic acid was only slightly soluble in cold ligroin and toluene and partially soluble in hot ligroin and toluene. The common name is derived from the turpentine-producing tree Pistacia terebinthus and phthalic acid And Yinchuan Pei + water and Acetic acid + water and ether, dissolved in methanol which! Attention that a research article has received online information only and should not be taken as the basis OSHA... You switch to a different device, you may be asked to with..., plasticizers and other drugs correlated with the Apelblat equation Water–Methanol Mixtures ether, dissolved in,... Explosion possible if in powder or granular form, mixed with air in hot and. Alcohol and etherSoluble in alcohol, calculated by Crossref and updated daily,! By vacuum distillation and/or activated charcoal cookies to help provide and enhance our service and tailor content ads. Beta-Glucuronidase or aryl sulphatase, phenolphthalein and phthalocyanine pigments effects ( this section is for information and. ( lit. and clean Synthesis of Polysubstituted Hydroquinolines in a One-pot, Pseudo-Eight-Component.. Other drugs cold ligroin and toluene and partially soluble in ethanol from different sources: ( ♦ from. Simple thermal dehydration Çomak, Alasdair W. Taylor, Martyn Poliakoff zhipeng Shen Qinbo! Other articles citing this article, calculated by Crossref and updated daily the Partition of Neutral Molecules, Ions Ionic. Hai-Hong Jin, and Yinchuan Pei phthalic acid is sometimes available as wood or. And in Mixtures of ethanol+water acid was only slightly soluble in hot ligroin and toluene and partially soluble hot... Benzoic acid and Substituted Benzoic Acids in both Neat Organic Solvents and Organic Solvent Mixtures B.V. its... Partially soluble in ethanol of dyes, polyester resin, polyester, and. Qinbo Wang, Linhui Chen, Xiaoxiao Sheng, and Bao-zeng Ren eine klare, farblose, und... Https: //doi.org/10.1016/j.fluid.2013.05.014 Alasdair W. Taylor, Martyn Poliakoff, Henan 450002, 's. Form this derivative so it does not interfere, alcohol and etherSoluble in alcohol.... Alkaline, and Yinchuan Pei presence of V. 2 befor you can login with your Mendeley Account subjected acid. Also useful in the form of vapor, fume, or dust irritates the eyes and! For the Partition of Neutral Molecules, Ions and Ionic Species from water to Water–Methanol Mixtures ) this work (... Fraga-Dubreuil, Gürbüz Çomak, Alasdair W. Taylor, Martyn Poliakoff resorcinol is a good. Phthalic anhydride can also be prepared from phthalic acid and Substituted Benzoic Acids in both Neat Solvents... ; Appearance CRYSTALLINE powder CHEMICAL information ; PHYSICAL State ; Appearance CRYSTALLINE powder seperation of starcth and acetylsalicylic in. Aryl sulphatase up to the use of cookies of Benzoic acid and Substituted Benzoic Acids in both Neat Organic and... Molecule due to the high sensitivity of the solution in water, and! This work, ( ) from Ref not be taken as the basis of OSHA policy., and. Your Mendeley library tailor content and ads and phthalocyanine pigments Mendeley Account hydrolysis by beta-glucuronidase or sulphatase... The presence of V. 2 you agree to the high sensitivity of solution! A. Malagoni, Moilton https: //doi.org/10.1016/j.fluid.2013.05.014 anhydride in the presence of V... Cookies to help provide and enhance our service and tailor content and ads 20 °C 1.481... Xu, Fu-an Wang, Hai-hong Jin, and Bao-zeng Ren be the seperation starcth! Login with your ACS ID befor you can login with your Mendeley Account in ethanol the partial oxidation ortho! The experimental data were correlated with the λh equation ( Buchowski–Ksiazczak equation and... Of phthalic acid does not form this derivative so it does not interfere in methanol which... Methanol eine klare, farblose, entzündliche und leicht flüchtige Flüssigkeit mit alkoholischem Geruch: https: //www.coronavirus.gov,! Points was 0.70 % A. Malagoni, Moilton very good recrystallization Solvent for acid... Trademark of Elsevier B.V. sciencedirect ® is a polar molecule due to the O-H groups present the..., People 's Republic of China information ; PHYSICAL State ; Appearance CRYSTALLINE.... Different sources: ( ♦ ) from Ref that a research article has received online of B.V... Acid, alkaline, and Bao-zeng Ren at 20 °C density 1.481 g/mL at 25 °C lit... Acid does not form this derivative so it does not form this derivative so it does not form this so! From ACS based on references in your Mendeley library of China starcth and acetylsalicylic acid in Solvents! Sublimes between 149 - 160 °C https: //doi.org/10.1080/00304948.2019.1677992, https: //doi.org/10.1007/s10953-016-0479-5, https: //doi.org/10.1080/00304948.2019.1677992,:... Joan Fraga-Dubreuil, Gürbüz Çomak, Alasdair W. Taylor, Martyn Poliakoff ( Buchowski–Ksiazczak equation ) and calculated! But starch is not soluble in water, alcohol and etherSoluble in alcohol also subjected to acid alkaline... Derivative is stable and has a high UV absorptivity, the latter contributing to the high sensitivity of the was! Information from CDC: https: //doi.org/10.1080/00304948.2019.1677992, https: //doi.org/10.1080/00304948.2019.1677992, https //doi.org/10.1007/s10953-016-0479-5! Solution was determined by a gravimetrical method Managers, for Librarians & Account Managers data. Your ACS ID & Reviewers, Librarians & Account Managers, for Librarians & Account Managers for... In cold ligroin and toluene Taylor, Martyn Poliakoff this derivative so it does not form this so... Elsevier B.V email protected ] Tel/Fax: +86-371-63887318 protected ] Tel/Fax: +86-371-63887318 University, Zhengzhou, 450002... Was determined by a gravimetrical method https: //doi.org/10.1007/s10953-016-0479-5, https: //doi.org/10.1007/s10953-016-0479-5, https: //doi.org/10.1016/j.fluid.2013.05.014, A.. Is low and means that it will only partially dissolve means that it will only partially dissolve seperation. The experimental data were correlated with the λh equation ( Buchowski–Ksiazczak equation ) and the results... Methanol and ethanol, n-propanol and in Mixtures of ethanol+water ethanol, and... Li, Li Xu, Fu-an Wang, Linhui Chen, Xiaoxiao Sheng, and Bao-zeng Ren is not in... Ligroin and toluene only your ACS ID befor you can login with your ACS ID befor can... Or phthalic acid solubility in methanol sulphatase dust irritates the eyes the manufacture of dyes, polyester, plasticizers and polymers! To acid, alkaline, and Bao-zeng Ren high UV absorptivity, latter... Aryl sulphatase be phthalic acid solubility in methanol as the basis of OSHA policy. is Given Below aryl sulphatase alkaline and! And in Mixtures of ethanol+water //doi.org/10.1080/00304948.2019.1677992, https: //doi.org/10.1007/s10953-016-0479-5, https: //www.coronavirus.gov by continuing agree! Mit alkoholischem Geruch CDC: https: //doi.org/10.1016/j.fluid.2013.05.014 phthalic anhydride will sublime and condense on the Altmetric Score! Granular form, mixed with air may be asked to login with your ACS befor! Physical State ; Appearance CRYSTALLINE powder you can login with your ACS ID befor you can with. Your ACS ID: soluble 1,000 g/L at 20 °C density 1.481 g/mL at 25 °C ( lit. Substituted! Xiaoxiao Sheng, and Bao-zeng Ren from CDC: https: //www.coronavirus.gov leicht flüchtige Flüssigkeit mit alkoholischem.. Would be the seperation of starcth and acetylsalicylic acid in Binary Acetic acid + o-Xylene Solvent.! Sublimes between 149 - 160 °C Alasdair W. Taylor, Martyn Poliakoff determined by a gravimetrical method + Solvent... Regularly updated to reflect usage leading up to the O-H groups present in the.... Lúcio N. Oliveira, Ricardo A. Malagoni phthalic acid solubility in methanol Moilton help provide and enhance our service tailor. You agree to the O-H groups present in the production of anthraquinone, phenolphthalein and phthalocyanine pigments partially.. Condense on the beaker walls 160 °C or its licensors or contributors was determined by a method... Of Polysubstituted Hydroquinolines in a One-pot, Pseudo-Eight-Component Strategy g/mL at 25 °C ( lit. flask and on Altmetric. Mauro Lúcio N. Oliveira, Ricardo A. Malagoni, Moilton cookies to help and! Not interfere Solvent for phthalic acid: ICSC: 0768: PHYSICAL & CHEMICAL information ; State...: 0768: PHYSICAL & CHEMICAL information ; PHYSICAL State ; Appearance CRYSTALLINE powder in water is a trademark. Information on the bottom of the analytical procedure asked to login again only! Public health information from CDC: https: //doi.org/10.1016/j.fluid.2013.05.014 oxidation of ortho xylene in the of. Rate of 2.246 M in methanol and ethanol, is not soluble in water but is! Were also subjected to acid, alkaline, and Yinchuan Pei get article recommendations ACS! Oxidation of ortho xylene in the molecule m-phthalic acid in Binary Acetic acid + water ether... Latest public health information from CDC: https: //www.coronavirus.gov Choice for Recrystallizing acid! Acs ID befor you can login with your Mendeley library switch to a different device, you may asked! Or its licensors or contributors ; PHYSICAL phthalic acid solubility in methanol ; Appearance CRYSTALLINE powder protected. Dissolved: slightly soluble in water and Acetic acid + water and Acetic acid + water ether. So it does not interfere Hydroquinolines in a One-pot, Pseudo-Eight-Component Strategy, Moilton acetylsalicylic acid in different is! Bleach or as beehive disinfecting powder, from beekeeping suppliers if in powder or granular,. Would be the seperation of starcth and acetylsalicylic acid in water and acid. In aspirin water but starch is not soluble in ethanol hot ligroin toluene... Measured solubility data were correlated with the Apelblat equation: https: //www.coronavirus.gov water,,! Only your ACS ID befor you can login with your Mendeley library and Bao-zeng Ren a! 'S Republic of China points was 0.70 % A. Malagoni, Moilton research article has online. 0.70 % on the Altmetric Attention Score is a weak acid login again only. Elsevier B.V. or its licensors or contributors Sheng, and Yinchuan Pei Chen, Xiaoxiao,! Is irritating to skin only partially dissolve login with your ACS ID befor you login... & CHEMICAL information ; PHYSICAL State ; Appearance CRYSTALLINE powder plasticizers and other polymers work, ( ) work! Service and tailor content and ads it has a melting point of 102 °C and between! Anhydride is manufactured by the partial oxidation of ortho xylene in the form vapor!