Applied Biological Chemistry
- 제31권2호
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- Pages.193-199
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- 1988
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- 2468-0834(pISSN)
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- 2468-0842(eISSN)
보조용매(補助溶媒) Phenol로 제조(製造)된 Cyhexatin 유제(乳劑)의 안정성(安定性)
The Stability of Cyhexatin Emulsifiable Concentrate Formulated by Using Phenol as a Cosolvent
- Kim, Yoon-Jeong (Department of Agricultural Chemistry, Kyungpook National University) ;
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Kim, Jang-Eok
(Department of Agricultural Chemistry, Kyungpook National University) ;
- Kim, Jung-Ho (Department of Environmental Health, Taegu Oriental Medical University) ;
- Hong, Jong-Uck (Department of Agricultural Chemistry, Kyungpook National University)
- 발행 : 1988.06.30
초록
Cyhexatin은 여러가지 제형중(劑型中)에서 수화제(水和劑)만 개발(開發)되어 있으며, 용매(溶媒) 의 용해도(溶解度)가 낮으므로 유제(乳劑)는 개발(開發)되어 있지 않다. 효과적(效果的)인 제형(劑型)을 개발(開發)하기 위해 Cyhexatin 유제(乳劑)를 제조(製造)한 결과(結果)는 다음과 같다. Cyhexatin은 보조용매(補助溶媒)인 Phenol과 유화제(乳化劑)인 E-ASC를 사용(使用)하여 9% 유제(乳劑)를 제조(製造)할 수 있었다. Cyhexatin 유제(乳劑)는
This study was conducted to investigate the possibility of emulsifiable concentrate(EC) development and the stability and acaricidal activity of the formulated emulsifiable concentrate. Cyhexatin could be formulated into 9% EC by using phenol as a cosolvent and E-ASC as an emulsifier. Cyhexatin EC was stable in 0.5% moisture content, pH 4.5 and 7, but it was unstable in more than 1% moisture content and the alkaline condition of pH 9.5. The emulsion of cyhexatin EC was unstable in hard water of pH 10. The acaricidal activity of 500 fold of 9% EC was shown to be as good as that of 27% wp of 1500 fold.
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