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Cacodyl

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the smell of this body produces instantaneous tingling of the hands and feet, and even giddiness and insensibility...It is remarkable that when one is exposed to the smell of these compounds the tongue becomes covered with a black coating, even when no further evil effects are
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A more efficient synthesis was later developed which started from the dimethyl arsine chloride and dimethyl arsine:
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was considered, but it was never used in the war. Inorganic chemists discovered the properties of cacodyl as a
497: 829: 727: 493: 410: 193: 505: 653: 562:. A subsequent reduction yields a mixture of several methylated arsenic compounds including dicacodyl. 695: 66: 286: 519: 114: 855: 833: 710:
Work on cacodyl led Bunsen to the postulation of "methyl radicals" as part of the then-current
504:). It is a poisonous oily liquid with an extremely unpleasant garlicky odor. Cacodyl undergoes 555: 878: 870: 809: 680: 559: 515: 368: 257: 175: 771: 766: 735: 699: 565:
The global reaction (mass balance) corresponding to the oxide formation is the following:
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compound ever discovered (even though arsenic is not a true metal).
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Except where otherwise noted, data are given for materials in their
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Jahresberichte über die Fortschritte der Physischen Wissenschaften
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From it other compounds were made, such as cacodyl fluoride,
274: 45: 35: 441: 554:) was first prepared by Cadet by the reaction of 236: 123: 702:, was particularly awful. In Bunsen's words " 538:A mixture of dicacodyl and cacodyl oxide ((CH 8: 496:compound that constitutes a major part of " 289: 196: 174: 15: 882: 813: 256: 856:"The Crystal Structure of Arsenomethane" 640: 636: 632: 628: 624: 620: 616: 603: 599: 595: 591: 587: 583: 579: 575: 571: 788: 345: 310: 285: 187: 854:John H. Burns and Jürg Waser (1957). 722:Cacodyl was used to try to prove the 317:Key: RSKPLCGMBWEANE-UHFFFAOYSA-N 314:InChI=1S/C4H12As2/c1-5(2)6(3)4/h1-4H3 7: 324:InChI=1/C4H12As2/c1-5(2)6(3)4/h1-4H3 757:Dimethyl(trifluoromethylthio)arsine 327:Key: RSKPLCGMBWEANE-UHFFFAOYAG 227: 500:" (named after the French chemist 14: 502:Louis Claude Cadet de Gassicourt 431: 380: 22: 687:and is considered the earliest 427:(at 25 °C , 100 kPa). 386: 40:Ball and stick model of cacodyl 374: 50:Space-filling model of cacodyl 1: 683:and (for over six years) by 698:, et cetera. One compound, 31: 923: 796:Seyferth, Dietmar (2001). 672:("evil-smelling") and ὕλη 421: 361: 336: 301: 107: 77: 65: 60: 30: 21: 734:the use of cacodyl as a 514:is also the name of the 907:Foul-smelling chemicals 742:for transition metals. 679:It was investigated by 411:Magnetic susceptibility 506:spontaneous combustion 51: 41: 830:Berzelius, Jöns Jacob 654:Robert Wilhelm Bunsen 498:Cadet's fuming liquid 91:Bis(dimethylarsenic)( 80:Tetramethyldiarsenic( 49: 39: 728:Jöns Jacob Berzelius 67:Preferred IUPAC name 875:10.1021/ja01561a020 668:As, from the Greek 474:tetramethyldiarsine 404: g·mol 102:Tetramethyldiarsine 71:Tetramethyldiarsane 18: 454:Infobox references 52: 42: 16: 902:Cacodyl compounds 815:10.1021/om0101947 556:potassium acetate 462:Chemical compound 460: 459: 270:CompTox Dashboard 156:Interactive image 149:Interactive image 56: 55: 914: 888: 886: 863:J. Am. Chem. Soc 860: 846: 845: 826: 820: 819: 817: 808:(8): 1488–1498. 793: 696:cacodyl chloride 681:Edward Frankland 656:coined the name 644: 606: 560:arsenic trioxide 516:functional group 468:, also known as 444: 438: 435: 434: 417:-99.9·10 cm/mol 403: 388: 382: 376: 369:Chemical formula 294: 293: 278: 276: 260: 240: 229: 208: 200: 189: 178: 158: 151: 127: 32: 26: 19: 922: 921: 917: 916: 915: 913: 912: 911: 892: 891: 858: 853: 850: 849: 828: 827: 823: 802:Organometallics 795: 794: 790: 785: 772:Cacodyl cyanide 767:Trimethylarsine 748: 736:chemical weapon 720: 700:cacodyl cyanide 670:κακώδης kakōdēs 667: 663: 651: 642: 638: 634: 630: 626: 622: 618: 614: 605: 601: 597: 593: 589: 585: 581: 577: 573: 569: 553: 549: 545: 541: 536: 529: 525: 491: 487: 483: 479: 463: 456: 451: 450: 449:  ?) 440: 436: 432: 428: 414: 401: 391: 385: 379: 371: 357: 354: 349: 344: 343: 332: 329: 328: 325: 319: 318: 315: 309: 308: 297: 279: 272: 263: 243: 230: 218: 181: 161: 141: 130: 117: 103: 100: 89: 73: 72: 12: 11: 5: 920: 918: 910: 909: 904: 894: 893: 890: 889: 869:(4): 859–864. 848: 847: 821: 787: 786: 784: 781: 780: 779: 774: 769: 764: 759: 754: 752:Cacodylic acid 747: 744: 724:radical theory 719: 716: 712:radical theory 689:organometallic 665: 661: 650: 647: 646: 645: 608: 607: 551: 547: 543: 539: 535: 532: 527: 523: 489: 485: 481: 477: 461: 458: 457: 452: 430: 429: 425:standard state 422: 419: 418: 415: 409: 406: 405: 399: 393: 392: 389: 383: 377: 372: 367: 364: 363: 359: 358: 356: 355: 352: 350: 347: 339: 338: 337: 334: 333: 331: 330: 326: 323: 322: 320: 316: 313: 312: 304: 303: 302: 299: 298: 296: 295: 287:DTXSID30197038 282: 280: 268: 265: 264: 262: 261: 253: 251: 245: 244: 242: 241: 233: 231: 223: 220: 219: 217: 216: 212: 210: 202: 201: 191: 183: 182: 180: 179: 171: 169: 163: 162: 160: 159: 152: 144: 142: 135: 132: 131: 129: 128: 120: 118: 113: 110: 109: 105: 104: 79: 75: 74: 70: 69: 63: 62: 58: 57: 54: 53: 43: 28: 27: 13: 10: 9: 6: 4: 3: 2: 919: 908: 905: 903: 900: 899: 897: 885: 880: 876: 872: 868: 864: 857: 852: 851: 843: 839: 835: 831: 825: 822: 816: 811: 807: 803: 799: 792: 789: 782: 778: 777:Cacodyl oxide 775: 773: 770: 768: 765: 763: 760: 758: 755: 753: 750: 749: 745: 743: 741: 737: 733: 729: 725: 717: 715: 713: 708: 706: 701: 697: 692: 690: 686: 685:Robert Bunsen 682: 677: 675: 671: 659: 655: 648: 613: 612: 611: 568: 567: 566: 563: 561: 557: 533: 531: 521: 517: 513: 509: 507: 503: 499: 495: 494:organoarsenic 475: 471: 467: 455: 448: 443: 426: 420: 416: 412: 408: 407: 400: 398: 395: 394: 373: 370: 366: 365: 360: 351: 346: 342: 335: 321: 311: 307: 300: 292: 288: 284: 283: 281: 271: 267: 266: 259: 255: 254: 252: 250: 247: 246: 239: 235: 234: 232: 226: 222: 221: 214: 213: 211: 209: 204: 203: 199: 195: 192: 190: 188:ECHA InfoCard 185: 184: 177: 173: 172: 170: 168: 165: 164: 157: 153: 150: 146: 145: 143: 139: 134: 133: 126: 122: 121: 119: 116: 112: 111: 106: 101: 98: 94: 87: 83: 76: 68: 64: 59: 48: 44: 38: 34: 33: 29: 25: 20: 866: 862: 841: 837: 824: 805: 801: 791: 721: 718:Applications 709: 703: 693: 678: 676:("matter"). 673: 669: 657: 652: 609: 564: 537: 511: 510: 508:in dry air. 473: 469: 465: 464: 108:Identifiers 96: 92: 90: 85: 81: 78:Other names 732:World War I 534:Preparation 362:Properties 194:100.006.766 896:Categories 884:1911/18207 844:: 526–539. 783:References 705:noticeable 623:Cl + As(CH 546:As–O–As(CH 397:Molar mass 348:((C)C)(C)C 258:11N299093L 167:ChemSpider 136:3D model ( 115:CAS Number 834:"Kakodyl" 574:COOK + As 470:dicacodyl 215:207-440-4 207:EC Number 832:(1841). 762:Lewisite 746:See also 492:, is an 484:As–As(CH 413:(χ) 353:C(C)(C)C 125:471-35-2 17:Cacodyl 658:kakodyl 649:History 594:O + 2 K 520:radical 512:Cacodyl 466:Cacodyl 447:what is 445: ( 402:209.983 225:PubChem 740:ligand 631:H → As 602:+ 2 CO 582:→ ((CH 442:verify 439:  341:SMILES 61:Names 859:(PDF) 643:+ HCl 615:As(CH 558:with 476:, (CH 306:InChI 238:79018 176:71351 138:JSmol 707:". 674:hylē 570:4 CH 530:As. 249:UNII 879:hdl 871:doi 810:doi 726:of 635:(CH 590:As) 522:(CH 518:or 472:or 275:EPA 228:CID 898:: 877:. 867:79 865:. 861:. 842:20 840:. 836:. 806:20 804:. 800:. 714:. 598:CO 387:As 384:12 97:As 93:As 86:As 82:As 887:. 881:: 873:: 818:. 812:: 666:2 664:) 662:3 641:4 639:) 637:3 633:2 629:2 627:) 625:3 621:2 619:) 617:3 604:2 600:3 596:2 592:2 588:2 586:) 584:3 580:3 578:O 576:2 572:3 552:2 550:) 548:3 544:2 542:) 540:3 528:2 526:) 524:3 490:2 488:) 486:3 482:2 480:) 478:3 437:Y 390:2 381:H 378:4 375:C 277:) 273:( 140:) 99:) 95:— 88:) 84:—

Index

Structural formula of cacodyl
Ball and stick model of cacodyl
Space-filling model of cacodyl
Preferred IUPAC name
CAS Number
471-35-2
JSmol
Interactive image
Interactive image
ChemSpider
71351
ECHA InfoCard
100.006.766
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EC Number
PubChem
79018
UNII
11N299093L
CompTox Dashboard
DTXSID30197038
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InChI
SMILES
Chemical formula
Molar mass
Magnetic susceptibility
standard state
verify
what is

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