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Phthalic acid

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273: 180: 36: 27: 470: 759: 575: 473: 475: 733:
determined its correct formula, Laurent gave it its present name. 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.
906:
Several melting points are reported, for example: (i) 480. K (NIST website), (ii) 210−211 Â°C with decomposition (Sigma-Aldrich on-line), (iii) 191 Â°C in a sealed tube (Ullmann's Encyclopedia of Industrial Chemistry), (iv) 230 Â°C with conversion to phthalic anhydride and water
999: : 113-125. (Note: The empirical formulae of the compounds that were analyzed in this article are incorrect, in part because, during this period, chemists used incorrect atomic masses for carbon (6 instead of 12) and other elements.) 474: 476: 484: 1062: : 76-99; on page 92, Laurent coins the name "acide phtalique" (phthalic acid) and admits that his earlier empirical formula for phthalic acid was wrong. 588: 922: 547: 498: 322: 973: 725:
naphthalene tetrachloride. Believing the resulting substance to be a naphthalene derivative, he named it "naphthalic acid". After the
1041:(1) : 13-20. (Note: Again, Marignac's empirical formulae are wrong because chemists at this time used incorrect atomic masses.) 583: 939: 730: 287: 117: 595: 670: 1093: 844: 774: 555: 230: 175: 1052:"Sur de nouvelles combinaisons nitrogĂ©nĂ©es de la naphtaline et sur les acides phtalique et nitrophtalique" 1207: 251: 920:
Lorz, Peter M.; Towae, Friedrich K.; Enke, Walter; et al. (2007). "Phthalic Acid and Derivatives".
420: 187: 1073:"Ueber neue stickstoffhaltige Verbindungen des Naphtalins, ĂŒber PhtalinsĂ€ure und NitrophtalinsĂ€ure" 674: 268: 26: 1030: 852: 439: 1202: 743: 988: 967: 1072: 1051: 1009: 1054:(On new nitrogenous compounds of naphthalene, and on phthalic acid and nitrophthalic acid), 665:. Although phthalic acid is of modest commercial importance, the closely related derivative 778: 750:, gives Phthalic anhydride, which, through hydrolysis with hot water, gives Phthalic acid. 747: 239: 48: 8: 1187: 157: 83: 1075:(On new nitrogenous compounds of naphthalene, on phthalic acid and nitrophthalic acid), 1031:"Ueber die NaphtalinsĂ€ure und ein bei ihrer Darstellung entstehendes flĂŒchtiges Produkt" 876: 272: 179: 137: 93: 839: 802: 790: 782: 705: 666: 645: 551: 539: 1083:(1) : 98-114; on page 108, Laurent coins the name "PhtalinsĂ€ure" (phthalic acid). 1138: 935: 857: 682: 619: 608: 527: 1033:("On naphthalinic acid and a volatile product that arises during its preparation"), 927: 848: 829: 678: 623: 523: 409: 345: 931: 718: 669:
is a commodity chemical produced on a large scale. Phthalic acid is one of three
661: 517: 219: 1133: 786: 566: 1196: 977:. Vol. 21 (11th ed.). Cambridge University Press. pp. 545–546. 962: 398: 168: 698: 1131: 497: 1161: 726: 694: 543: 483: 35: 490: 370: 188: 148: 966: 834: 722: 296:
InChI=1S/C8H6O4/c9-7(10)5-3-1-2-4-6(5)8(11)12/h1-4H,(H,9,10)(H,11,12)
1020:(1) : 38-50; for the preparation of phthalic acid, see page 41. 781:. Typically phthalate esters are prepared from the widely available 565:
Except where otherwise noted, data are given for materials in their
306:
InChI=1/C8H6O4/c9-7(10)5-3-1-2-4-6(5)8(11)12/h1-4H,(H,9,10)(H,11,12)
616: 456: 116: 715: 650: 491: 388: 206: 758: 712: 128: 106: 256: 1121:(3rd ed.). Philadelphia: W. B. Saunders. p. 602. 693:
Phthalic acid is produced by the catalytic oxidation of
895:
Determination of Organic Structures by Physical Methods
893:
Brown, H.C., et al., in Baude, E.A. and Nachod, F.C.,
1163:
Microbial degradation of polyvinyl chloride plastics
1132:Richard N. McDonald and Charles E. Reineke (1988). 919: 16:Aromatic organic compound with formula C6H4(COOH)2 1194: 1094:"Oxidation of Naphthalene to Phthalic Anhydride" 218: 1071:Reprinted in German as: Auguste Laurent (1842) 1008:Reprinted in German as: Auguste Laurent (1836) 801:The toxicity of phthalic acid is moderate with 472: 92: 923:Ullmann's Encyclopedia of Industrial Chemistry 708:and a subsequent hydrolysis of the anhydride. 1169:(Ph.D.). Quaid-i-Azam University. p. 47. 1010:"Ueber NaphthalinsĂ€ure und ihre Verbindungen" 989:"Sur l'acide naphtalique et ses combinaisons" 773:s of 2.89 and 5.51. The monopotassium salt, 1159: 1012:(On naphthalenic acid and its compounds), 271: 178: 156: 915: 913: 238: 991:(On naphthalic acid and its compounds), 961: 957: 955: 953: 951: 757: 1188:International Chemical Safety Card 0768 267: 1195: 1116: 910: 403:207 Â°C (405 Â°F; 480 K) 169: 948: 753: 299:Key: XNGIFLGASWRNHJ-UHFFFAOYSA-N 136: 711:Phthalic acid was first obtained by 789:in the presence of water gives the 309:Key: XNGIFLGASWRNHJ-UHFFFAOYAX 209: 13: 1056:Revue Scientifique et Industrielle 785:. Reduction of phthalic acid with 731:Jean Charles Galissard de Marignac 468: 14: 1219: 1181: 897:, Academic Press, New York, 1955. 811: 1134:"trans-1,2-Dihydrophthalic Acid" 1077:Annalen der Chemie und Pharmacie 1035:Annalen der Chemie und Pharmacie 993:Annales de Chimie et de Physique 573: 34: 25: 1153: 1125: 1110: 1086: 1065: 820:sp. P1 degrades phthalic acid. 742:Naphthalene, on oxidation with 569:(at 25 Â°C , 100 kPa). 1160:Ishtiaq Ali, Muhammad (2011). 1119:Chemistry of Organic Compounds 1044: 1023: 1002: 981: 900: 887: 869: 1: 932:10.1002/14356007.a20_181.pub2 863: 688: 53:Benzene-1,2-dicarboxylic acid 845:Potassium hydrogen phthalate 775:potassium hydrogen phthalate 766:It is a dibasic acid, with p 737: 7: 823: 808:(mouse) of 550 mg/kg. 375:166.132 g/mol 10: 1224: 1177:Merck Index, 9th ed, #7178 1148:, vol. 6, p. 461 1098:public.websites.umich.edu 796: 563: 509: 450: 338: 318: 283: 76: 59: 47: 42: 33: 24: 1117:Noller, Carl R. (1965). 675:benzenedicarboxylic acid 1050:Auguste Laurent (1841) 987:Auguste Laurent (1836) 974:EncyclopĂŠdia Britannica 926:. Weinheim: Wiley-VCH. 440:Magnetic susceptibility 1029:C. de Marignac (1841) 968:"Phthalic Acids"  777:is a standard acid in 763: 762:Phthalic acid crystals 744:potassium permanganate 479: 66:Benzene-1,2-dioic acid 1014:Annalen der Pharmacie 761: 478: 62:1,2-Benzenedioic acid 853:acid–base titrations 779:analytical chemistry 748:potassium dichromate 461:(fire diamond) 330:OC(=O)c1ccccc1C(=O)O 49:Preferred IUPAC name 677:, the others being 410:Solubility in water 21: 1208:Dicarboxylic acids 840:Phthalic anhydride 791:1,3-cyclohexadiene 783:phthalic anhydride 764: 754:Reactions and uses 706:phthalic anhydride 667:phthalic anhydride 596:Infobox references 552:Phthaloyl chloride 540:Phthalic anhydride 510:Related compounds 480: 393:1.593 g/cm, solid 19: 1146:Collected Volumes 1139:Organic Syntheses 907:(J.T.Baker MSDS). 858:Terephthalic acid 683:terephthalic acid 620:dicarboxylic acid 609:organic chemistry 604:Chemical compound 602: 601: 535:Related compounds 528:Terephthalic acid 446:-83.61·10 cm/mol 252:CompTox Dashboard 118:Interactive image 1215: 1171: 1170: 1168: 1157: 1151: 1149: 1142: 1129: 1123: 1122: 1114: 1108: 1107: 1105: 1104: 1090: 1084: 1069: 1063: 1048: 1042: 1027: 1021: 1006: 1000: 985: 979: 978: 970: 959: 946: 945: 917: 908: 904: 898: 891: 885: 884: 873: 849:primary standard 830:Isophthalic acid 679:isophthalic acid 664: 643: 586: 580: 577: 576: 558:dicarboxaldehyde 524:Isophthalic acid 518:carboxylic acids 500: 493: 486: 471: 415:0.6 g / 100 mL 364: 346:Chemical formula 276: 275: 260: 258: 242: 222: 211: 190: 182: 171: 160: 140: 120: 96: 38: 29: 22: 18: 1223: 1222: 1218: 1217: 1216: 1214: 1213: 1212: 1193: 1192: 1184: 1174: 1166: 1158: 1154: 1144: 1130: 1126: 1115: 1111: 1102: 1100: 1092: 1091: 1087: 1070: 1066: 1049: 1045: 1028: 1024: 1007: 1003: 986: 982: 960: 949: 942: 918: 911: 905: 901: 892: 888: 877:"PHTHALIC ACID" 875: 874: 870: 866: 826: 814: 806: 799: 772: 756: 740: 719:Auguste Laurent 691: 658: 654: 648: 642: 638: 634: 630: 626: 605: 598: 593: 592: 591:  ?) 582: 578: 574: 570: 557: 554: 550: 548:Phthalhydrazide 546: 542: 536: 526: 520: 505: 504: 503: 502: 495: 488: 481: 477: 469: 443: 429: 412: 363: 359: 355: 351: 348: 334: 331: 326: 325: 314: 311: 310: 307: 301: 300: 297: 291: 290: 279: 261: 254: 245: 225: 212: 200: 163: 143: 123: 110: 99: 86: 72: 67: 65: 63: 55: 54: 17: 12: 11: 5: 1221: 1211: 1210: 1205: 1191: 1190: 1183: 1182:External links 1180: 1179: 1178: 1173: 1172: 1152: 1124: 1109: 1085: 1064: 1043: 1022: 1001: 980: 965:, ed. (1911). 963:Chisholm, Hugh 947: 941:978-3527306732 940: 909: 899: 886: 867: 865: 862: 861: 860: 855: 842: 837: 832: 825: 822: 813: 812:Biodegradation 810: 804: 798: 795: 787:sodium amalgam 770: 755: 752: 739: 736: 690: 687: 656: 652: 640: 636: 632: 628: 603: 600: 599: 594: 572: 571: 567:standard state 564: 561: 560: 537: 534: 531: 530: 521: 515: 512: 511: 507: 506: 496: 489: 482: 467: 466: 465: 464: 462: 453: 452: 448: 447: 444: 438: 435: 434: 431: 427: 417: 416: 413: 408: 405: 404: 401: 395: 394: 391: 385: 384: 381: 377: 376: 373: 367: 366: 361: 357: 353: 349: 344: 341: 340: 336: 335: 333: 332: 329: 321: 320: 319: 316: 315: 313: 312: 308: 305: 304: 302: 298: 295: 294: 286: 285: 284: 281: 280: 278: 277: 264: 262: 250: 247: 246: 244: 243: 235: 233: 227: 226: 224: 223: 215: 213: 205: 202: 201: 199: 198: 194: 192: 184: 183: 173: 165: 164: 162: 161: 153: 151: 145: 144: 142: 141: 133: 131: 125: 124: 122: 121: 113: 111: 104: 101: 100: 98: 97: 89: 87: 82: 79: 78: 74: 73: 71:-Phthalic acid 61: 57: 56: 52: 51: 45: 44: 40: 39: 31: 30: 20:Phthalic acid 15: 9: 6: 4: 3: 2: 1220: 1209: 1206: 1204: 1203:Benzoic acids 1201: 1200: 1198: 1189: 1186: 1185: 1176: 1175: 1165: 1164: 1156: 1147: 1141: 1140: 1135: 1128: 1120: 1113: 1099: 1095: 1089: 1082: 1078: 1074: 1068: 1061: 1057: 1053: 1047: 1040: 1036: 1032: 1026: 1019: 1015: 1011: 1005: 998: 994: 990: 984: 976: 975: 969: 964: 958: 956: 954: 952: 943: 937: 933: 929: 925: 924: 916: 914: 903: 896: 890: 882: 878: 872: 868: 859: 856: 854: 850: 846: 843: 841: 838: 836: 833: 831: 828: 827: 821: 819: 816:The bacteria 809: 807: 794: 792: 788: 784: 780: 776: 769: 760: 751: 749: 745: 735: 732: 728: 724: 720: 717: 714: 709: 707: 703: 701: 696: 686: 684: 680: 676: 672: 668: 663: 659: 647: 625: 621: 618: 614: 613:phthalic acid 610: 597: 590: 585: 568: 562: 559: 553: 549: 545: 541: 538: 533: 532: 529: 525: 522: 519: 514: 513: 508: 501: 494: 487: 463: 460: 459: 455: 454: 449: 445: 441: 437: 436: 432: 426: 422: 419: 418: 414: 411: 407: 406: 402: 400: 399:Melting point 397: 396: 392: 390: 387: 386: 382: 379: 378: 374: 372: 369: 368: 350: 347: 343: 342: 337: 328: 327: 324: 317: 303: 293: 292: 289: 282: 274: 270: 269:DTXSID8021484 266: 265: 263: 253: 249: 248: 241: 237: 236: 234: 232: 229: 228: 221: 217: 216: 214: 208: 204: 203: 196: 195: 193: 191: 186: 185: 181: 177: 174: 172: 170:ECHA InfoCard 167: 166: 159: 155: 154: 152: 150: 147: 146: 139: 135: 134: 132: 130: 127: 126: 119: 115: 114: 112: 108: 103: 102: 95: 91: 90: 88: 85: 81: 80: 75: 70: 64:Phthalic acid 58: 50: 46: 41: 37: 32: 28: 23: 1162: 1155: 1145: 1137: 1127: 1118: 1112: 1101:. Retrieved 1097: 1088: 1080: 1076: 1067: 1059: 1055: 1046: 1038: 1034: 1025: 1017: 1013: 1004: 996: 992: 983: 972: 921: 902: 894: 889: 880: 871: 817: 815: 800: 793:derivative. 767: 765: 741: 710: 704:directly to 699: 692: 612: 606: 556:Benzene-1,2- 457: 424: 383:white solid 77:Identifiers 68: 60:Other names 818:Pseudomonas 721:in 1836 by 695:naphthalene 544:Phthalimide 433:2.89, 5.51 380:Appearance 339:Properties 176:100.001.703 138:CHEBI:29069 1197:Categories 1103:2024-04-06 881:hazard.com 864:References 689:Production 371:Molar mass 240:6O7F7IX66E 149:ChemSpider 105:3D model ( 84:CAS Number 835:Phthalate 738:Synthesis 723:oxidizing 646:structure 197:201-873-2 189:EC Number 824:See also 729:chemist 617:aromatic 516:Related 458:NFPA 704 451:Hazards 442:(χ) 716:chemist 671:isomers 649:HO(O)C− 624:formula 622:, with 589:what is 587: ( 421:Acidity 389:Density 365: 207:PubChem 94:88-99-3 938:  797:Safety 713:French 702:xylene 700:ortho- 662:C(O)OH 615:is an 584:verify 581:  323:SMILES 43:Names 1167:(PDF) 727:Swiss 288:InChI 129:ChEBI 107:JSmol 69:ortho 936:ISBN 851:for 847:, a 681:and 644:and 231:UNII 220:1017 928:doi 746:or 697:or 673:of 635:(CO 607:In 257:EPA 210:CID 158:992 1199:: 1143:; 1136:. 1096:. 1081:41 1079:, 1058:, 1039:38 1037:, 1018:19 1016:, 997:61 995:, 971:. 950:^ 934:. 912:^ 879:. 805:50 803:LD 685:. 639:H) 611:, 430:) 423:(p 1150:. 1106:. 1060:6 944:. 930:: 883:. 771:a 768:K 660:− 657:4 655:H 653:6 651:C 641:2 637:2 633:4 631:H 629:6 627:C 579:N 499:0 492:0 485:2 428:a 425:K 362:4 360:O 358:6 356:H 354:8 352:C 259:) 255:( 109:)

Index

Phthalic acids
Ball-and-stick model of the phthalic acid molecule
Preferred IUPAC name
CAS Number
88-99-3
JSmol
Interactive image
ChEBI
CHEBI:29069
ChemSpider
992
ECHA InfoCard
100.001.703
Edit this at Wikidata
EC Number
PubChem
1017
UNII
6O7F7IX66E
CompTox Dashboard
DTXSID8021484
Edit this at Wikidata
InChI
SMILES
Chemical formula
Molar mass
Density
Melting point
Solubility in water
Acidity

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