瀹為獙浜屽崄涓�
鐢插熀姗欑殑鍒跺
Experiment 21 Preparation of methyl orange
[
瀹為獙鐩殑
]
1
銆佺啛鎮夐噸姘寲鍙嶅簲鍜屽伓鍚堝弽搴旂殑鍘熺悊銆?/p>
2
銆佹帉鎻＄敳鍩烘鐨勫埗澶囨柟娉曘�?/p>
[
瀹為獙鍐呭
]
涓�銆佸疄楠屽師鐞?/p>
1
銆侀噸姘寲鍙嶅簲
鑺抽鏃忎集鑳哄湪浣庢俯鍜屽己閰告憾娑蹭腑涓庝簹纭濋吀閽犱綔鐢紝鐢熸垚閲嶆爱鐩愮殑鍙嶅簲绉颁负閲嶆爱鍖栧弽搴?/p>
锛?/p>
diazotization
锛?/p>
銆傜敱浜庤姵棣欐棌浼兒鍦ㄧ粨鏋勪笂鐨勫樊寮傦紝閲嶆爱鍖栨柟娉曚篃涓嶅敖鐩稿悓銆?/p>
鑻兒銆佽仈鑻兒鍙婂惈鏈夌粰鐢靛瓙鍩虹殑鑺宠兒锛屽叾鏃犳満閰哥洂绋冲畾鍙堟憾浜庢按锛屼竴鑸噰鐢ㄩ『閲嶆爱娉曪紝
鍗冲厛鎶?/p>
1mol
鑳烘憾浜?/p>
2.5-3 mol
鐨勬棤鏈洪吀锛屼簬
0-5
鈩?/p>
鍔犲叆浜氱閰搁挔銆?/p>
鍚湁鍚哥數瀛愬熀锛?/p>
-SO3H
銆?/p>
-COOH
锛夌殑鑺宠兒锛岀敱浜庢湰韬舰鎴愬唴鐩愯�岄毦婧朵簬鏃犳満閰革紝杈冮毦閲嶆爱
鍖栵紝涓�鑸噰鐢ㄩ�嗛噸姘寲娉曪紝鍗冲厛婧朵簬纰抽吀閽犳憾娑诧紝鍐嶅姞鍏ヤ簹纭濋吀閽狅紝鏈�鍚庡姞閰搞�傛湰娆″疄楠岋紝
鐢插熀姗欑殑鍒跺鍗抽噰鐢ㄨ鏂规硶銆?/p>
鍚湁涓�涓?/p>
-NO2
銆?/p>
-Cl
绛夊惛鐢靛瓙鐨勮姵鑳猴紝鐢变簬纰辨�у急锛岄毦鎴愭棤鏈虹洂锛屼笖閾电洂闅炬憾浜庢按锛屾槗
姘磋В锛?/p>
鐢熸垚鐨勯噸姘洂鍙堝鏄撲笌鏈弽搴旂殑鑳虹敓鎴愰噸姘皑鍩哄寲鍚堢墿
锛?/p>
-ArN
锛?/p>
N
锛?/p>
NHAr
锛?/p>
锛?/p>
鍥犳澶氶噰
鐢ㄥ厛灏嗚兒婧朵簬鐑殑鐩愰吀锛屽喎鍗村悗鍐嶉噸姘寲銆?/p>
2
銆佸伓鍚堝弽搴?/p>
鍦ㄥ急纰辨垨寮遍吀鎬ф潯浠朵笅锛岄噸姘洂鍜岄厷銆佽姵鑳虹被鍖栧悎鐗╀綔鐢紝鐢熸垚鍋舵爱鍩猴紙锛?/p>
N=N-
锛夊皢涓?/p>
鍒嗗瓙涓殑鑺崇幆鍋惰仈璧锋潵鐨勫弽搴旂О涓哄伓鑱斿弽搴旓紙
coupling reaction
鍋跺悎鍙嶅簲锛?/p>
銆?/p>
鍋惰仈鍙嶅簲鐨勫疄璐ㄦ槸鑺抽鐜笂鐨勪翰鐢靛彇浠ｅ弽搴旓紝
鍋舵爱鍩轰负寮辩殑浜茬數鍩猴紝
瀹冨彧鑳戒笌鑺崇幆涓婂叿
鏈夎緝澶х數瀛愪簯瀵嗗害鐨勯厷绫汇�?/p>
鑺宠兒绫诲寲鍚堢墿鍙嶅簲銆?/p>
鐢变簬绌洪棿浣嶉樆鐨勫奖鍝嶏紝
鍙嶅簲涓�鑸湪瀵逛綅鍙戠敓銆?/p>
鑻ュ浣嶅凡缁忔湁鍙栦唬鍩猴紝鍒欏伓鑱斿弽搴斿彂鐢熷湪閭讳綅銆?/p>
閲嶆爱鐩愬拰閰氱殑鍙嶅簲鏄湪鑻ョ⒈鎬х殑浠嬭川涓繘琛屻�?/p>
鑰岄噸姘洂涓庤姵鑳虹殑鍙嶅簲鏄湪寮遍吀鐜涓嬭繘