1
瀹為獙涓�
灏跨礌涓惈姘噺鐨勬祴瀹?/p>
涓�銆佸疄楠岀洰鐨?/p>
1.
瀛︿細鐢ㄧ敳閱涙硶娴嬪畾姘惈閲忥紝鎺屾彙闂存帴婊村畾鐨勫師鐞嗐�?/p>
2.
瀛︿細
NH
4
+
鐨勫己鍖栵紝鎺屾彙璇曟牱娑堝寲鎿嶄綔銆?/p>
3.
鎺屾彙瀹归噺鐡躲�佺Щ娑茬鐨勬纭搷浣溿�?/p>
4.
杩涗竴姝ョ啛鎮夊垎鏋愬ぉ骞崇殑浣跨敤銆?/p>
浜屻�佸疄楠屽師鐞?/p>
甯哥敤鐨勫惈姘寲鑲ユ湁
NH
4
Cl
銆?/p>
(NH
4
)
2
SO
4
銆?/p>
NH
4
NO
3
銆?/p>
NH
4
HCO
3
鍜屽翱绱犵瓑锛?/p>
鍏朵腑
NH
4
Cl
銆?/p>
(NH
4
)
2
SO
4
鍜?/p>
NH
4
NO
3
鏄己閰稿急纰辩洂銆傜敱浜?/p>
NH
4
+
鐨勯吀鎬уお寮?/p>
(Ka=5.6脳
10
-10
)
锛?/p>
鍥犳涓嶈兘鐩存帴鐢?/p>
NaOH
鏍囧噯婧舵恫婊村畾锛?/p>
浣嗙敤鐢查啗娉曞彲浠ラ棿鎺?/p>
娴嬪畾鍏跺惈閲忋�傚翱绱犻�氳繃澶勭悊涔熷彲浠ョ敤鐢查啗娉曟祴瀹氬叾鍚爱閲忋�傜敳閱涗笌
NH
4
+
浣?/p>
鐢紝鐢熸垚璐ㄥ瓙鍖栫殑鍏鐢插熀鍥涜兒
(Ka=7.1脳
10
-6
)
鍜?/p>
H
+
锛屽叾鍙嶅簲濡備笅锛?
4NH
4
+
+ 6HCHO = (CH
2
)
6
N
4
H
+
+ 3H
+
+ 6H
2
鎵�鐢熸垚鐨?/p>
H
+
鍜?/p>
(CH
2
)
6
N
4
H
+
鍙敤
NaOH
鏍囧噯婧舵恫婊村畾锛岄噰鐢ㄩ厷閰炰綔鎸囩ず鍓傘�?/p>
鏍囧畾
NaOH
鏍囧噯婧舵恫鐨勫熀鍑嗙墿璐ㄤ负閭昏嫰浜岀敳閰告阿閽撅紝鍏跺弽搴斾负锛?/p>
鍖栧璁￠噺鐐规椂锛屾憾娑插憟寮辩⒈鎬?/p>
(pH=9.20)
锛屽彲閫夌敤閰氶厼浣滄寚绀哄墏銆?/p>
涓夈�佷华鍣ㄤ笌璇曞墏
瀹归噺鐡?/p>
(250mL)
銆佺Щ娑茬
(25mL)
銆侀敟褰㈢摱
(250mL)
銆佺⒈寮忔淮瀹氱
(50mL)
銆?/p>
娲楄�崇悆銆佸垎鏋愬ぉ骞?/p>
姘㈡哀鍖栭挔銆侀偦鑻簩鐢查吀姘㈤捑銆佺～閰搁摰銆佺敳鍩虹孩鎸囩ず鍓?/p>
(0.2%
姘存憾娑?/p>
)
銆侀厷
閰?/p>
(0.2%
涔欓唶婧舵恫
)
銆佺敳閱涙憾娑?/p>
(1:1)
鍥涖�佸疄楠屾楠?
1
锛?/p>
0.1mol路
L
-1
NaOH
鏍囧噯婧舵恫鐨勯厤鍒跺強鏍囧畾
COOH
COOK
+
NaOH
COOK
COONa
+
H
2
O