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660V361L303 61Q310 54 315 52T339 48T401 46H427V0H416Q395 3 257 3Q121 3 100 0H88V46H114Q136 46 152 46T177 47T193 50T201 52T207 57T213 61V578Z",[359,765,766],{"dataMmlNode":369,"transform":736},[371,767],{"dataC":373,"d":374},[740,769],{"width":742,"height":743,"x":744,"y":745},[323,771,772,773,776],{},"加入沸石或碎瓷片，",[326,774,775],{},"防止暴沸","，若忘记加沸石，应停止加热，待冷却之后再补加",[323,778,779],{},"温度计水银球应与蒸馏烧瓶的支管口平齐",[323,781,782,783,786,787,790],{},"冷凝水应 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252Z",[359,926,928],{"dataMmlNode":369,"transform":927},"translate(748,-150) scale(0.707)",[371,929],{"dataC":600,"d":601},[359,931,933,939],{"dataMmlNode":579,"transform":932},"translate(1151.6,0)",[359,934,935],{"dataMmlNode":478},[371,936],{"dataC":937,"d":938},"1D43B","M228 637Q194 637 192 641Q191 643 191 649Q191 673 202 682Q204 683 219 683Q260 681 355 681Q389 681 418 681T463 682T483 682Q499 682 499 672Q499 670 497 658Q492 641 487 638H485Q483 638 480 638T473 638T464 637T455 637Q416 636 405 634T387 623Q384 619 355 500Q348 474 340 442T328 395L324 380Q324 378 469 378H614L615 381Q615 384 646 504Q674 619 674 627T617 637Q594 637 587 639T580 648Q580 650 582 660Q586 677 588 679T604 682Q609 682 646 681T740 680Q802 680 835 681T871 682Q888 682 888 672Q888 645 876 638H874Q872 638 869 638T862 638T853 637T844 637Q805 636 794 634T776 623Q773 618 704 340T634 58Q634 51 638 51Q646 48 692 46H723Q729 38 729 37T726 19Q722 6 716 0H701Q664 2 567 2Q533 2 504 2T458 2T437 1Q420 1 420 10Q420 15 423 24Q428 43 433 45Q437 46 448 46H454Q481 46 514 49Q520 50 522 50T528 55T534 64T540 82T547 110T558 153Q565 181 569 198Q602 330 602 331T457 332H312L279 197Q245 63 245 58Q245 51 253 49T303 46H334Q340 38 340 37T337 19Q333 6 327 0H312Q275 2 178 2Q144 2 115 2T69 2T48 1Q31 1 31 10Q31 12 34 24Q39 43 44 45Q48 46 59 46H65Q92 46 125 49Q139 52 144 61Q147 65 216 339T285 628Q285 635 228 637Z",[359,940,942],{"dataMmlNode":369,"transform":941},"translate(864,-150) scale(0.707)",[371,943],{"dataC":944,"d":945},"35","M164 157Q164 133 148 117T109 101H102Q148 22 224 22Q294 22 326 82Q345 115 345 210Q345 313 318 349Q292 382 260 382H254Q176 382 136 314Q132 307 129 306T114 304Q97 304 95 310Q93 314 93 485V614Q93 664 98 664Q100 666 102 666Q103 666 123 658T178 642T253 634Q324 634 389 662Q397 666 402 666Q410 666 410 648V635Q328 538 205 538Q174 538 149 544L139 546V374Q158 388 169 396T205 412T256 420Q337 420 393 355T449 201Q449 109 385 44T229 -22Q148 -22 99 32T50 154Q50 178 61 192T84 210T107 214Q132 214 148 197T164 157Z",[359,947,949],{"dataMmlNode":478,"transform":948},"translate(2419.1,0)",[371,950],{"dataC":951,"d":952},"1D442","M740 435Q740 320 676 213T511 42T304 -22Q207 -22 138 35T51 201Q50 209 50 244Q50 346 98 438T227 601Q351 704 476 704Q514 704 524 703Q621 689 680 617T740 435ZM637 476Q637 565 591 615T476 665Q396 665 322 605Q242 542 200 428T157 216Q157 126 200 73T314 19Q404 19 485 98T608 313Q637 408 637 476Z",[359,954,956,960],{"dataMmlNode":579,"transform":955},"translate(3182.1,0)",[359,957,958],{"dataMmlNode":478},[371,959],{"dataC":923,"d":924},[359,961,962],{"dataMmlNode":369,"transform":927},[371,963],{"dataC":600,"d":601},[359,965,967,971],{"dataMmlNode":579,"transform":966},"translate(4333.7,0)",[359,968,969],{"dataMmlNode":478},[371,970],{"dataC":937,"d":938},[359,972,973],{"dataMmlNode":369,"transform":941},[371,974],{"dataC":944,"d":945}," )、乙酸乙酯、二氯甲烷等",[323,977,978,822,981],{},[326,979,980],{},"检漏",[320,982,983,986],{},[323,984,985],{},"关闭下方活塞，加入适量蒸馏水，静置，如没有水流下，说明活塞处不漏水",[323,987,988,989,1019],{},"塞上上方玻璃塞，倒置，如没有水流出，将分液漏斗正立，把玻璃塞旋转 ",[343,990,992],{"className":991,"jax":347},[346],[349,993,996],{"style":496,"xmlns":352,"width":497,"height":994,"role":355,"focusable":356,"viewBox":995},"1.667ex","0 -715 2000 737",[359,997,998],{"stroke":361,"fill":361,"stroke-width":362,"transform":363},[359,999,1000,1010],{"dataMmlNode":366},[359,1001,1002,1004,1008],{"dataMmlNode":369},[371,1003],{"dataC":762,"d":763},[371,1005],{"dataC":1006,"d":1007,"transform":379},"38","M70 417T70 494T124 618T248 666Q319 666 374 624T429 515Q429 485 418 459T392 417T361 389T335 371T324 363L338 354Q352 344 366 334T382 323Q457 264 457 174Q457 95 399 37T249 -22Q159 -22 101 29T43 155Q43 263 172 335L154 348Q133 361 127 368Q70 417 70 494ZM286 386L292 390Q298 394 301 396T311 403T323 413T334 425T345 438T355 454T364 471T369 491T371 513Q371 556 342 586T275 624Q268 625 242 625Q201 625 165 599T128 534Q128 511 141 492T167 463T217 431Q224 426 228 424L286 386ZM250 21Q308 21 350 55T392 137Q392 154 387 169T375 194T353 216T330 234T301 253T274 270Q260 279 244 289T218 306L210 311Q204 311 181 294T133 239T107 157Q107 98 150 60T250 21Z",[371,1009],{"dataC":377,"d":378,"transform":384},[359,1011,1013],{"dataMmlNode":382,"dataMjxTexclass":383,"transform":1012},"translate(1500,0)",[359,1014,1015],{"dataMmlNode":452},[371,1016],{"dataC":1017,"d":1018},"B0","M147 628Q147 669 179 692T244 715Q298 715 325 689T352 629Q352 592 323 567T249 542Q202 542 175 567T147 628ZM313 628Q313 660 300 669T259 678H253Q248 678 242 678T234 679Q217 679 207 674T192 659T188 644T187 629Q187 600 198 590Q210 579 250 579H265Q279 579 288 581T305 595T313 628Z","，再倒置，如仍没有水流出，说明玻璃塞处不漏水",[323,1021,1022,822,1025],{},[326,1023,1024],{},"主要仪器",[326,1026,1027],{},"分液漏斗",[323,1029,1030,1032,1033,1050,1051,1064,1065,1078,1079,1096,1098],{},[326,1031,686],{},"\n操作步骤：检漏 ",[343,1034,1036],{"className":1035,"jax":347},[346],[349,1037,1042],{"style":1038,"xmlns":352,"width":1039,"height":1040,"role":355,"focusable":356,"viewBox":1041},"vertical-align: -0.025ex;","3.706ex","1.181ex","0 -511 1638 522",[359,1043,1044],{"stroke":361,"fill":361,"stroke-width":362,"transform":363},[359,1045,1046],{"dataMmlNode":366},[359,1047,1048],{"dataMmlNode":452},[371,1049],{"dataC":562,"d":563}," 加试剂振荡 ",[343,1052,1054],{"className":1053,"jax":347},[346],[349,1055,1056],{"style":1038,"xmlns":352,"width":1039,"height":1040,"role":355,"focusable":356,"viewBox":1041},[359,1057,1058],{"stroke":361,"fill":361,"stroke-width":362,"transform":363},[359,1059,1060],{"dataMmlNode":366},[359,1061,1062],{"dataMmlNode":452},[371,1063],{"dataC":562,"d":563}," 静置分层 ",[343,1066,1068],{"className":1067,"jax":347},[346],[349,1069,1070],{"style":1038,"xmlns":352,"width":1039,"height":1040,"role":355,"focusable":356,"viewBox":1041},[359,1071,1072],{"stroke":361,"fill":361,"stroke-width":362,"transform":363},[359,1073,1074],{"dataMmlNode":366},[359,1075,1076],{"dataMmlNode":452},[371,1077],{"dataC":562,"d":563}," 分液",[320,1080,1081,1084,1087],{},[323,1082,1083],{},"分液漏斗使用之前必须检漏",[323,1085,1086],{},"使用时需将漏斗上口的玻璃塞打开，或使玻璃塞上的凹槽对准分液漏斗上的小孔",[323,1088,1089,1090,786,1093],{},"漏斗下端管口紧靠烧怀内壁，分液时首先让",[326,1091,1092],{},"下层液体从下口流出",[326,1094,1095],{},"上层液体从上口倒出",[805,1097],{},[355,1099],{"alt":809,"src":1100,"style":1101},"https:\u002F\u002Fptg90phsi6rf8j7h.public.blob.vercel-storage.com\u002Fchemistry\u002F1.2.webp","height:150px",[323,1103,1104,1105],{},"举例：",[320,1106,1107,1110,1113,1116],{},[323,1108,1109],{},"用苯萃取溴水中的溴：溴水橙（红）色，苯无色，萃取后，苯密度小于水，溴的苯溶液处于上层橙（红）色，下层为水无色",[323,1111,1112],{},"用苯萃取碘水中的碘：碘水为棕黄色，萃取后，碘的苯溶液在上层紫红色，水在下层无色",[323,1114,1115],{},"用四氯化碳萃取溴水中的溴：萃取后，四氯化碳的密度大于水，溴的四氯化碳溶液处于下层橙（红）色，水在上层无色",[323,1117,1118],{},"用四氯化碳萃取碘水中的碘：萃取后，碘的四氯化碳溶液在下层紫红色，水在上层无色",[316,1120,1121],{"id":1121},"重结晶",[320,1123,1124,1129,1134,1143,1220],{},[323,1125,1126,1128],{},[326,1127,821],{},"：利用被提纯物质与杂质在同一溶剂中的溶解度不同而将杂质除去",[323,1130,1131,1133],{},[326,1132,334],{},"：固体有机化合物",[323,1135,1136,1139,1140],{},[326,1137,1138],{},"溶剂选择","：要求杂质在此溶剂中溶解度很小或溶解度很大，易于除去；",[326,1141,1142],{},"被提纯的有机化合物在此溶剂中的溶解度受温度的影响较大，能够进行冷却结晶",[323,1144,1145,1148,1150,1151],{},[326,1146,1147],{},"操作步骤",[805,1149],{},"使用重结晶法分离固体化合物时，根据杂质的溶解度不同，应选择不同的操作步骤",[320,1152,1153,1187],{},[323,1154,1155,1158,1159,1172,1173,1186],{},[326,1156,1157],{},"杂质的溶解度很小","：加热溶解 ",[343,1160,1162],{"className":1161,"jax":347},[346],[349,1163,1164],{"style":833,"xmlns":352,"width":834,"height":835,"role":355,"focusable":356,"viewBox":836},[359,1165,1166],{"stroke":361,"fill":361,"stroke-width":362,"transform":363},[359,1167,1168],{"dataMmlNode":366},[359,1169,1170],{"dataMmlNode":452},[371,1171],{"dataC":845,"d":846}," 趁热过滤（滤去部分杂质，目标产物在溶液中）",[343,1174,1176],{"className":1175,"jax":347},[346],[349,1177,1178],{"style":833,"xmlns":352,"width":834,"height":835,"role":355,"focusable":356,"viewBox":836},[359,1179,1180],{"stroke":361,"fill":361,"stroke-width":362,"transform":363},[359,1181,1182],{"dataMmlNode":366},[359,1183,1184],{"dataMmlNode":452},[371,1185],{"dataC":845,"d":846}," 冷却结晶",[323,1188,1189,1158,1192,1205,1206,1219],{},[326,1190,1191],{},"杂质的溶解度很大",[343,1193,1195],{"className":1194,"jax":347},[346],[349,1196,1197],{"style":833,"xmlns":352,"width":834,"height":835,"role":355,"focusable":356,"viewBox":836},[359,1198,1199],{"stroke":361,"fill":361,"stroke-width":362,"transform":363},[359,1200,1201],{"dataMmlNode":366},[359,1202,1203],{"dataMmlNode":452},[371,1204],{"dataC":845,"d":846}," 蒸发浓缩 ",[343,1207,1209],{"className":1208,"jax":347},[346],[349,1210,1211],{"style":833,"xmlns":352,"width":834,"height":835,"role":355,"focusable":356,"viewBox":836},[359,1212,1213],{"stroke":361,"fill":361,"stroke-width":362,"transform":363},[359,1214,1215],{"dataMmlNode":366},[359,1216,1217],{"dataMmlNode":452},[371,1218],{"dataC":845,"d":846}," 冷却结晶（杂质在溶液中，目标产物结晶析出）",[323,1221,1222,1225],{},[326,1223,1224],{},"注意",[320,1226,1227,1230],{},[323,1228,1229],{},"如果重结晶所得的晶体纯度不能达到要求，可以再次进行重结晶以提高产物的纯度",[323,1231,1232],{},"若第一步「加热溶解」得到的是饱和溶液，过滤时会因溶液的温度降低而析出一部分溶质，造成损失，所以通常再加入少量蒸馏水，减少趁热过滤过程中的损失",[485,1234,1235,1238],{},[488,1236,1237],{},"以重结晶法提纯苯甲酸为例",[320,1239,1240,1243,1755],{},[323,1241,1242],{},"实验目的：提纯含有少量氯化钠和泥沙杂质的苯甲酸",[323,1244,1245,1246,1250,1251,1354,1355,1460,1461,786,1464,1467,1468],{},"资料：纯净的苯甲酸为无色结晶，其结构可表示为 ",[355,1247],{"alt":809,"src":1248,"style":1249},"https:\u002F\u002Fptg90phsi6rf8j7h.public.blob.vercel-storage.com\u002Fchemistry\u002F1.3.webp","height:25px","\n熔点 ",[343,1252,1254],{"className":1253,"jax":347},[346],[349,1255,1258],{"style":351,"xmlns":352,"width":1256,"height":354,"role":355,"focusable":356,"viewBox":1257},"6.015ex","0 -716 2658.6 1003.9",[359,1259,1260],{"stroke":361,"fill":361,"stroke-width":362,"transform":363},[359,1261,1262,1270],{"dataMmlNode":366},[359,1263,1264,1266,1268],{"dataMmlNode":369},[371,1265],{"dataC":762,"d":763},[371,1267],{"dataC":600,"d":601,"transform":379},[371,1269],{"dataC":600,"d":601,"transform":384},[359,1271,1272,1298,1300,1348],{"dataMmlNode":382,"dataMjxTexclass":383,"transform":1012},[359,1273,1274,1282,1290],{"dataMmlNode":387},[359,1275,1276],{"dataMmlNode":382,"dataMjxTexclass":383},[359,1277,1278],{"dataMmlNode":382,"dataMjxTexclass":383},[359,1279,1280],{"dataMmlNode":394},[359,1281],{"dataMmlNode":397},[359,1283,1284],{"dataMmlNode":382,"transform":400,"dataMjxTexclass":383},[359,1285,1286],{"dataMmlNode":382,"dataMjxTexclass":383},[359,1287,1288],{"dataMmlNode":394},[359,1289],{"dataMmlNode":397},[359,1291,1292],{"dataMmlNode":382,"transform":409,"dataMjxTexclass":383},[359,1293,1294],{"dataMmlNode":382,"dataMjxTexclass":383},[359,1295,1296],{"dataMmlNode":394},[359,1297],{"dataMmlNode":397},[359,1299],{"dataMmlNode":418,"transform":419},[359,1301,1302,1310,1332],{"dataMmlNode":387,"transform":422},[359,1303,1304],{"dataMmlNode":382,"dataMjxTexclass":383},[359,1305,1306],{"dataMmlNode":382,"dataMjxTexclass":383},[359,1307,1308],{"dataMmlNode":394},[359,1309],{"dataMmlNode":397},[359,1311,1312,1322],{"dataMmlNode":382,"transform":400,"dataMjxTexclass":383},[359,1313,1314],{"dataMmlNode":382,"dataMjxTexclass":383},[359,1315,1316],{"dataMmlNode":394},[359,1317,1318],{"dataMmlNode":382,"dataMjxTexclass":383},[359,1319,1320],{"dataMmlNode":394},[359,1321],{"dataMmlNode":397},[359,1323,1324],{"dataMmlNode":382,"dataMjxTexclass":383},[359,1325,1326],{"dataMmlNode":394},[359,1327,1328],{"transform":449},[359,1329,1330],{"dataMmlNode":452},[371,1331],{"dataC":455,"d":456},[359,1333,1334,1340],{"dataMmlNode":382,"transform":459,"dataMjxTexclass":383},[359,1335,1336],{"dataMmlNode":382,"dataMjxTexclass":383},[359,1337,1338],{"dataMmlNode":394},[359,1339],{"dataMmlNode":397},[359,1341,1342],{"dataMmlNode":382,"dataMjxTexclass":383},[359,1343,1344],{"dataMmlNode":394},[359,1345,1346],{"dataMmlNode":382,"dataMjxTexclass":383},[359,1347],{"dataMmlNode":394},[359,1349,1350],{"dataMmlNode":382,"dataMjxTexclass":383,"transform":419},[359,1351,1352],{"dataMmlNode":478},[371,1353],{"dataC":481,"d":482},"，沸点 ",[343,1356,1358],{"className":1357,"jax":347},[346],[349,1359,1360],{"style":351,"xmlns":352,"width":1256,"height":354,"role":355,"focusable":356,"viewBox":1257},[359,1361,1362],{"stroke":361,"fill":361,"stroke-width":362,"transform":363},[359,1363,1364,1376],{"dataMmlNode":366},[359,1365,1366,1368,1372],{"dataMmlNode":369},[371,1367],{"dataC":600,"d":601},[371,1369],{"dataC":1370,"d":1371,"transform":379},"34","M462 0Q444 3 333 3Q217 3 199 0H190V46H221Q241 46 248 46T265 48T279 53T286 61Q287 63 287 115V165H28V211L179 442Q332 674 334 675Q336 677 355 677H373L379 671V211H471V165H379V114Q379 73 379 66T385 54Q393 47 442 46H471V0H462ZM293 211V545L74 212L183 211H293Z",[371,1373],{"dataC":1374,"d":1375,"transform":384},"39","M352 287Q304 211 232 211Q154 211 104 270T44 396Q42 412 42 436V444Q42 537 111 606Q171 666 243 666Q245 666 249 666T257 665H261Q273 665 286 663T323 651T370 619T413 560Q456 472 456 334Q456 194 396 97Q361 41 312 10T208 -22Q147 -22 108 7T68 93T121 149Q143 149 158 135T173 96Q173 78 164 65T148 49T135 44L131 43Q131 41 138 37T164 27T206 22H212Q272 22 313 86Q352 142 352 280V287ZM244 248Q292 248 321 297T351 430Q351 508 343 542Q341 552 337 562T323 588T293 615T246 625Q208 625 181 598Q160 576 154 546T147 441Q147 358 152 329T172 282Q197 248 244 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726",[359,5120,5121],{"stroke":361,"fill":361,"stroke-width":362,"transform":363},[359,5122,5123,5127,5136],{"dataMmlNode":366},[359,5124,5125],{"dataMmlNode":478},[371,5126],{"dataC":951,"d":952},[359,5128,5130],{"dataMmlNode":382,"dataMjxTexclass":383,"transform":5129},"translate(763,0)",[359,5131,5132],{"dataMmlNode":452},[371,5133],{"dataC":5134,"d":5135},"2014","M0 248V285H999V248H0Z",[359,5137,5139],{"dataMmlNode":478,"transform":5138},"translate(1763,0)",[371,5140],{"dataC":937,"d":938},[343,5142,5144],{"className":5143,"jax":347},[346],[349,5145,5148],{"style":496,"xmlns":352,"width":5146,"height":498,"role":355,"focusable":356,"viewBox":5147},"5.991ex","0 -705 2648 727",[359,5149,5150],{"stroke":361,"fill":361,"stroke-width":362,"transform":363},[359,5151,5152,5156,5163],{"dataMmlNode":366},[359,5153,5154],{"dataMmlNode":478},[371,5155],{"dataC":923,"d":924},[359,5157,5159],{"dataMmlNode":382,"dataMjxTexclass":383,"transform":5158},"translate(760,0)",[359,5160,5161],{"dataMmlNode":452},[371,5162],{"dataC":5134,"d":5135},[359,5164,5166],{"dataMmlNode":478,"transform":5165},"translate(1760,0)",[371,5167],{"dataC":937,"d":938}," 和 ",[343,5170,5172],{"className":5171,"jax":347},[346],[349,5173,5177],{"style":833,"xmlns":352,"width":5174,"height":5175,"role":355,"focusable":356,"viewBox":5176},"6.211ex","1.781ex","0 -705 2745.4 787",[359,5178,5179],{"stroke":361,"fill":361,"stroke-width":362,"transform":363},[359,5180,5181,5185,5190],{"dataMmlNode":366},[359,5182,5183],{"dataMmlNode":478},[371,5184],{"dataC":923,"d":924},[359,5186,5188],{"dataMmlNode":452,"transform":5187},"translate(982.2,0)",[371,5189],{"dataC":845,"d":846},[359,5191,5193],{"dataMmlNode":478,"transform":5192},"translate(1982.4,0)",[371,5194],{"dataC":951,"d":952}," 的吸收峰，可推知该分子的结构简式为 ",[343,5197,5199],{"className":5198,"jax":347},[346],[349,5200,5201],{"style":909,"xmlns":352,"width":2207,"height":2048,"role":355,"focusable":356,"viewBox":2208},[359,5202,5203],{"stroke":361,"fill":361,"stroke-width":362,"transform":363},[359,5204,5205],{"dataMmlNode":366},[359,5206,5207,5213,5233,5239,5259],{"dataMmlNode":382,"dataMjxTexclass":383},[359,5208,5209],{"dataMmlNode":382,"dataMjxTexclass":383},[359,5210,5211],{"dataMmlNode":478},[371,5212],{"dataC":481,"d":482},[359,5214,5215,5223],{"dataMmlNode":579,"transform":516},[359,5216,5217],{"dataMmlNode":382,"dataMjxTexclass":383},[359,5218,5219],{"dataMmlNode":382,"dataMjxTexclass":383},[359,5220,5221],{"dataMmlNode":394},[359,5222],{"dataMmlNode":397},[359,5224,5225],{"dataMmlNode":382,"transform":591,"dataMjxTexclass":383},[359,5226,5227],{"dataMmlNode":382,"dataMjxTexclass":383},[359,5228,5229],{"dataMmlNode":394},[359,5230,5231],{"dataMmlNode":369},[371,5232],{"dataC":600,"d":601},[359,5234,5235],{"dataMmlNode":382,"dataMjxTexclass":383,"transform":2243},[359,5236,5237],{"dataMmlNode":478},[371,5238],{"dataC":575,"d":576},[359,5240,5241,5249],{"dataMmlNode":579,"transform":2087},[359,5242,5243],{"dataMmlNode":382,"dataMjxTexclass":383},[359,5244,5245],{"dataMmlNode":382,"dataMjxTexclass":383},[359,5246,5247],{"dataMmlNode":394},[359,5248],{"dataMmlNode":397},[359,5250,5251],{"dataMmlNode":382,"transform":591,"dataMjxTexclass":383},[359,5252,5253],{"dataMmlNode":382,"dataMjxTexclass":383},[359,5254,5255],{"dataMmlNode":394},[359,5256,5257],{"dataMmlNode":369},[371,5258],{"dataC":944,"d":945},[359,5260,5261],{"dataMmlNode":382,"dataMjxTexclass":383,"transform":2270},[359,5262,5263,5265],{"dataMmlNode":478},[371,5264],{"dataC":519,"d":520},[371,5266],{"dataC":575,"d":576,"transform":635},[355,5268],{"alt":809,"src":5269,"style":5270},"https:\u002F\u002Fptg90phsi6rf8j7h.public.blob.vercel-storage.com\u002Fchemistry\u002F1.4.webp","height:250px",[316,5272,5273],{"id":5273},"质谱法",[320,5275,5276,5281,5290],{},[323,5277,5278,5280],{},[326,5279,821],{},"：用高能电子流等轰击样品，使有机分子失去电子，形成带正电荷的分子离子和碎片离子等，带正电荷的分子离子和碎片离子质量不同、电荷不同，因此它们在电场和磁场中的运动行为不同。它们在磁场的作用下到达检测器的时间不同，通过计算机分析得到质荷比，以质荷比为横坐标，以各类离子的相对丰度为纵坐标记录结果，得到质谱图",[323,5282,5283,5286,5287],{},[326,5284,5285],{},"质荷比","：质荷比是指分子离子或碎片离子的相对质量与其电荷数的比值。在有机化合物的质谱图中，",[326,5288,5289],{},"质荷比的最大值等于该有机化合物的相对分子质量",[323,5291,5292,5294,5295],{},[326,5293,1224],{}," 1. 质荷比的最大值对应的相对丰度不一定最大 2. 互为同分异构体的两种分子的质谱图中，虽然二者质荷比最大值相同但是质谱图并非完全相同\n",[485,5296,5297],{},[488,5298,5299,5300,5316,5317,5333,5334,5347,5348,5363],{},"如图所示为未知物 ",[343,5301,5303],{"className":5302,"jax":347},[346],[349,5304,5308],{"style":1739,"xmlns":352,"width":5305,"height":5306,"role":355,"focusable":356,"viewBox":5307},"1.697ex","1.62ex","0 -716 750 716",[359,5309,5310],{"stroke":361,"fill":361,"stroke-width":362,"transform":363},[359,5311,5312],{"dataMmlNode":366},[359,5313,5314],{"dataMmlNode":478},[371,5315],{"dataC":4829,"d":4830}," 的质谱图，质荷比最大值为 ",[343,5318,5320],{"className":5319,"jax":347},[346],[349,5321,5323],{"style":496,"xmlns":352,"width":1592,"height":1687,"role":355,"focusable":356,"viewBox":5322},"0 -677 1000 699",[359,5324,5325],{"stroke":361,"fill":361,"stroke-width":362,"transform":363},[359,5326,5327],{"dataMmlNode":366},[359,5328,5329,5331],{"dataMmlNode":369},[371,5330],{"dataC":1370,"d":1371},[371,5332],{"dataC":2534,"d":2535,"transform":379},"，表示未知物 ",[343,5335,5337],{"className":5336,"jax":347},[346],[349,5338,5339],{"style":1739,"xmlns":352,"width":5305,"height":5306,"role":355,"focusable":356,"viewBox":5307},[359,5340,5341],{"stroke":361,"fill":361,"stroke-width":362,"transform":363},[359,5342,5343],{"dataMmlNode":366},[359,5344,5345],{"dataMmlNode":478},[371,5346],{"dataC":4829,"d":4830}," 的相对分子质量为 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11Q26 15 29 27Q33 41 36 43T55 46Q141 49 190 98Q200 108 306 224T411 342Q302 620 297 625Q288 636 234 637H206Q200 643 200 645T202 664Q206 677 212 683H226Q260 681 347 681Q380 681 408 681T453 682T473 682Q490 682 490 671Q490 670 488 658Q484 643 481 640T465 637Q434 634 411 620L488 426L541 485Q646 598 646 610Q646 628 622 635Q617 635 609 637Q594 637 594 648Q594 650 596 664Q600 677 606 683H618Q619 683 643 683T697 681T738 680Q828 680 837 683H845Q852 676 852 672Q850 647 840 637H824Q790 636 763 628T722 611T698 593L687 584Q687 585 592 480L505 384Q505 383 536 304T601 142T638 56Q648 47 699 46Q734 46 734 37Q734 35 732 23Q728 7 725 4T711 1Q708 1 678 1T589 2Q528 2 496 2T461 1Q444 1 444 10Q444 11 446 25Q448 35 450 39T455 44T464 46T480 47T506 54Q523 62 523 64Q522 64 476 181L429 299Q241 95 236 84Q232 76 232 72Q232 53 261 47Q262 47 267 47T273 46Q276 46 277 46T280 45T283 42T284 35Q284 26 282 19Q279 6 276 4T261 1Q258 1 243 1T201 2T142 2Q64 2 42 0Z"," 射线衍射",[320,5389,5390,5451],{},[323,5391,5392,5393,5406,5407,5447,5448],{},"原理：",[343,5394,5396],{"className":5395,"jax":347},[346],[349,5397,5398],{"style":1739,"xmlns":352,"width":5374,"height":5375,"role":355,"focusable":356,"viewBox":5376},[359,5399,5400],{"stroke":361,"fill":361,"stroke-width":362,"transform":363},[359,5401,5402],{"dataMmlNode":366},[359,5403,5404],{"dataMmlNode":478},[371,5405],{"dataC":5385,"d":5386}," 射线是一种波长很短（ 约 ",[343,5408,5410],{"className":5409,"jax":347},[346],[349,5411,5415],{"style":496,"xmlns":352,"width":5412,"height":5413,"role":355,"focusable":356,"viewBox":5414},"7.281ex","2.005ex","0 -864 3218.2 886",[359,5416,5417],{"stroke":361,"fill":361,"stroke-width":362,"transform":363},[359,5418,5419,5440],{"dataMmlNode":366},[359,5420,5421,5427],{"dataMmlNode":2166},[359,5422,5423,5425],{"dataMmlNode":369},[371,5424],{"dataC":762,"d":763},[371,5426],{"dataC":377,"d":378,"transform":379},[359,5428,5430,5434],{"dataMmlNode":382,"transform":5429,"dataMjxTexclass":383},"translate(1033,393.1) scale(0.707)",[359,5431,5432],{"dataMmlNode":452},[371,5433],{"dataC":845,"d":846},[359,5435,5436,5438],{"dataMmlNode":369,"transform":635},[371,5437],{"dataC":762,"d":763},[371,5439],{"dataC":377,"d":378,"transform":379},[359,5441,5443],{"dataMmlNode":478,"transform":5442},"translate(2340.2,0)",[371,5444],{"dataC":5445,"d":5446},"1D45A","M21 287Q22 293 24 303T36 341T56 388T88 425T132 442T175 435T205 417T221 395T229 376L231 369Q231 367 232 367L243 378Q303 442 384 442Q401 442 415 440T441 433T460 423T475 411T485 398T493 385T497 373T500 364T502 357L510 367Q573 442 659 442Q713 442 746 415T780 336Q780 285 742 178T704 50Q705 36 709 31T724 26Q752 26 776 56T815 138Q818 149 821 151T837 153Q857 153 857 145Q857 144 853 130Q845 101 831 73T785 17T716 -10Q669 -10 648 17T627 73Q627 92 663 193T700 345Q700 404 656 404H651Q565 404 506 303L499 291L466 157Q433 26 428 16Q415 -11 385 -11Q372 -11 364 -4T353 8T350 18Q350 29 384 161L420 307Q423 322 423 345Q423 404 379 404H374Q288 404 229 303L222 291L189 157Q156 26 151 16Q138 -11 108 -11Q95 -11 87 -5T76 7T74 17Q74 30 112 181Q151 335 151 342Q154 357 154 369Q154 405 129 405Q107 405 92 377T69 316T57 280Q55 278 41 278H27Q21 284 21 287Z"," ）的电磁波，它和晶体中的原子相互作用可以产生衍射图。经过计算可以从中获得分子结构的有关数据，",[326,5449,5450],{},"包括键长、键角等分子结构信息",[323,5452,5453,5454,5467],{},"应用：将 ",[343,5455,5457],{"className":5456,"jax":347},[346],[349,5458,5459],{"style":1739,"xmlns":352,"width":5374,"height":5375,"role":355,"focusable":356,"viewBox":5376},[359,5460,5461],{"stroke":361,"fill":361,"stroke-width":362,"transform":363},[359,5462,5463],{"dataMmlNode":366},[359,5464,5465],{"dataMmlNode":478},[371,5466],{"dataC":5385,"d":5386}," 射线衍射技术用于有机化合物（特别是复杂的生物大分子）晶体结构的测定，可以获得更为直接而详尽的结构信息",[316,5469,5470],{"id":5470},"总结",[488,5472,5473],{},[355,5474],{"alt":809,"src":5475,"style":5476},"https:\u002F\u002Fptg90phsi6rf8j7h.public.blob.vercel-storage.com\u002Fchemistry\u002F1.7.webp","height:300px",[488,5478,5479,822],{},[326,5480,5481],{},"谱图法在确定有机物分子结构中的应用",[320,5483,5484,5492,5501,5510],{},[323,5485,5486,822,5489],{},[326,5487,5488],{},"核磁共振氢谱图",[326,5490,5491],{},"各类氢原子个数之比",[323,5493,5494,5497,5498],{},[326,5495,5496],{},"红外光谱图","：推知有机物分子中含有的 ",[326,5499,5500],{},"化学键、官能团",[323,5502,5503,5506,5507],{},[326,5504,5505],{},"质谱图","：质荷比的最大值等于该有机化合物的 ",[326,5508,5509],{},"相对分子质量",[323,5511,5512,5528,5529],{},[326,5513,5514,5527],{},[343,5515,5517],{"className":5516,"jax":347},[346],[349,5518,5519],{"style":1739,"xmlns":352,"width":5374,"height":5375,"role":355,"focusable":356,"viewBox":5376},[359,5520,5521],{"stroke":361,"fill":361,"stroke-width":362,"transform":363},[359,5522,5523],{"dataMmlNode":366},[359,5524,5525],{"dataMmlNode":478},[371,5526],{"dataC":5385,"d":5386}," 射线衍射技术","：用于有机化合物（特别是复杂的生物大分子）",[326,5530,5531],{},"晶体结构的测定",{"title":809,"searchDepth":5533,"depth":5533,"links":5534},2,[5535,5543],{"id":313,"depth":5533,"text":314,"children":5536},[5537,5539,5540,5541,5542],{"id":318,"depth":5538,"text":318},3,{"id":814,"depth":5538,"text":814},{"id":1121,"depth":5538,"text":1121},{"id":2023,"depth":5538,"text":2023},{"id":3902,"depth":5538,"text":3902},{"id":4738,"depth":5533,"text":4739,"children":5544},[5545,5546,5547,5548,5549],{"id":4742,"depth":5538,"text":4742},{"id":5091,"depth":5538,"text":5091},{"id":5273,"depth":5538,"text":5273},{"id":5368,"depth":5538,"text":5387},{"id":5470,"depth":5538,"text":5470},null,"介绍有机化合物的分离和提纯方法，包括蒸馏的原理、装置和注意事项，以及萃取的原理、萃取剂选择和操作步骤。","md",{},true,{"title":102,"description":5551},"YhCmmVriUaOhtkT4Ml4gDvC8wHWYSVqLDnN7lHprW-Y",[5558,5560],{"title":92,"path":93,"stem":94,"description":5559,"children":-1},"讲解配位键的概念和形成条件、配合物的组成包括中心原子、配体和配位数，以及配合物对物质溶解性和颜色的影响，补充超分子相关知识。",{"title":106,"path":107,"stem":108,"description":5561,"children":-1},"梳理有机化合物的反应类型，包括取代、加成、加聚、缩聚、水解等，列出各类化合物的常见反应。",1778558883657]