게시판 > 질답게시판 > 형광봉 만들기에 관해서요..

스테파노 Stefano

14-03-31 00:56

(0) 실험원리는 전혀 언급하지 않고 방법만 나열한 책은 과감히 버리세요.

(A1) 페놀의 OH가 달려있는 벤젠고리의 탄소번호를 1이라고 했을 때 2,4,6 탄소 위치의 수소가 각각 염소로 치환되어있다는 뜻입니다.
(A2) Oxalyl Chloride의 염소분자가 떨어지고 2,4,6-trichlorophenol의 페놀기와 결합하는 반응을 하기 위해서 사용합니다.
(A3) 물에 얼음을 넣어 중탕실험하는 반응은 발열이 심한 반응에 주로 사용합니다. 냉각을 위해서지요. 반응이 다끝내기 위해서 온도를 올려서 상온에서 5분간 더 교반해 주는 것입니다.
(A4)반응은 아래와 같아 보입니다. 톨루엔은 반응에 참여하지 않는 용제이고 아민은 TCPO생성시 발생하는 염산을 잡아두는 역할을 할 것입니다.
2{(C6H2Cl3)OH} + (-CO-Cl)2 + Triethylamine (C2H5)3N ---------> (C6H2Cl3)O-Cl-CO-CO-Cl-O(C6H2Cl3) + (C2H5)3N*HCl

(A5) Sodium Acetate를 넣어주는 이유는 주반응과는 관련없지만 생성되는 산성물질 (C2H5)3N*HCl과 반응시켜 초산과 소금을 만들어주기 위함으로 보입니다.

(C2H5)3N*HCl +CH3COONa --> CH3COOH + NaCl + (C2H5)3N

(A6) DEP용액이 녹이는 물질: 아마도 생성된 TCPO를 용해시킬것으로 추측합니다.

(1) 대신 조교님께 관련된 화학반응 수식이 어떻게 되는가를 알아보고 맞는지 확인하여 실험에 응하도록 하세요.
http://en.wikipedia.org/wiki/TCPO

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