• Title/Summary/Keyword: Journal of the Korean Chemical Society

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Safety Program in Chemical Industry (국내 화학업종의 안전실태)

  • 고흥화;전종한
    • Journal of the Korean Society of Safety
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    • v.5 no.1
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    • pp.67-76
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    • 1990
  • This research was to describe the organizational safety climate, to examine its implication, and to improve the strategies of industrial accident prevention in chemical industry in Korea. The subjects were 207 directors of department of safety in chemical industry, asked to respond questionnaire sent by mailing. The data in this research were analyzed by SPSS PC+. The results were as follows : 1) 24.2% of surveyed chemical industry had department of safety. 2) 53.6% of suueyed chemical industry had safety education program. 3) 53% of employees in surveyed chemical industry were satisfied with supply of personal protective equipments.

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Tetra Butyl Ammonium Chloride Catalyzed Synthesis of Substituted Benzimidazoles under Microwave Conditions (마이크로웨이브 반응조건에서 염화 테트라부틸암모늄을 촉매로 이용한 치환된 Benzimidazole화합물들의 합성)

  • Karuvalam, Ranjith. P.;Siji, M.;Divia., N.;Haridas, Karickal. R.
    • Journal of the Korean Chemical Society
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    • v.54 no.5
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    • pp.589-593
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    • 2010
  • TBACl (10 mol %) was found to be a useful catalyst for the synthesis of substituted benzimidazoles. The method was proved to be simple, convenient and the product was isolated with good yield.

Hardness Prediction and First Principle Study of Re-123(Re = Y, Eu, Pr, Gd) Superconductors

  • Liu, Weiwei;Zhou, Y.P.;Feng, X.L.
    • Bulletin of the Korean Chemical Society
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    • v.30 no.12
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    • pp.3016-3020
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    • 2009
  • The chemical bond parameters of Y-123, Eu-123, Pr-123 and Gd-123 compounds have calculated using the chemical bond theory of complex crystals. Their hardness have been predicted by the chemical bond definition of hardness. The calculated results indicate that the Ba-O and RE-O types of bond have a lower covalent character and the Cu-O types of bond have greater covalency. The hardness values increase as the unit cell volume of the rare earth superconductor structures decrease.