• Title/Summary/Keyword: Journal of Chemical Education

Search Result 2,423, Processing Time 0.027 seconds

Performance Evaluation of Hazardous Substances using Measurement Vehicle of Field Mode through Emergency Response of Chemical Incidents

  • Lee, Yeon-Hee;Hwang, Seung-Ryul;Kim, Jae-Young;Kim, Kyun;Kwak, Ji Hyun;Kim, Min Sun;Park, Joong Don;Jeon, Junho;Kim, Ki Joon;Lee, Jin Hwan
    • Korean Journal of Environmental Agriculture
    • /
    • v.34 no.4
    • /
    • pp.294-302
    • /
    • 2015
  • BACKGROUND: Chemical accidents have increased owing to chemical usage, human error and technical failures during the last decades. Many countries have organized supervisory authorities in charge of enforcing related rules and regulations to prevent chemical accidents. A very important part in chemical accidents has been coping with comprehensive first aid tool. Therefore, the present research has provided information with the initial applications concern to the rapid analysis of hazardous material using instruments in vehicle of field mode after chemical accidents. METHODS AND RESULTS: Mobile measurement vehicle was manufactured to obtain information regarding field assessments of chemical accidents. This vehicle was equipped with four instruments including gas chromatography with mass spectrometry (GC/MS), Fourier Transform Infrared Spectroscopy (FT-IR), Ion Chromatography (IC), and UV/Vis spectrometer (UV) to analyses of accident preparedness substances, volatile compounds, and organic gases. Moreover, this work was the first examined the evaluation of applicability for analysis instruments using 20 chemicals in various accident preparedness substances (GC/MS; 6 chemicals, FT-IR; 2 chemicals, IC; 11 chemicals, and UV; 1 chemical) and their calibration curves were obtained with high linearity ( r 2 > 0.991). Our results were observed the advantage of the high chromatographic peak capacity, fast analysis, and good sensitivity as well as resolution. CONCLUSION: When chemical accidents are occurred, the posted measurement vehicle may be utilized as tool an effective for qualitative and quantitative information in the scene of an accident owing to the rapid analysis of hazardous material.

A Study on the Effect of Customized Education for Small and Medium-sized Businesses Handling Hazardous Chemicals (유해화학물질 취급 중소사업장을 대상으로 한 맞춤형 교육 효과에 관한 연구)

  • Lee, Hyo-Eun;Kim, Min-Gyu;Lee, Bong-Woo
    • Journal of the Korean Society of Industry Convergence
    • /
    • v.25 no.6_2
    • /
    • pp.979-986
    • /
    • 2022
  • Chemical accidents are increasing day by day as the industry develops. To prevent such chemical accidents, Korea enacted the Chemicals Control Act. Through these laws, systematic management of chemical substances began. There are various positions in the companies. hazardous chemical supervisors, equipment and technical human, operators and employees. Chemicals-related education for each position should be provided. As a result of the survey, hazardous chemical supervisors and equipment and technical human liked the overall content of the Chemicals Control Act and the education subject on safety management standards for facilities. Conversely, the operators liked the course on how to wear personal protective equipment. The employees preferred subjects such as classification of chemical substances and prevention of chemical accidents. Currently, various modular textbooks are widely available. Rather than general education, it is necessary to select and provide customized subjects that are preferred and interested according to the position. Then it will be more effective in understanding harzardous chemical substances and in preventing chemical accidents.

Deoxygenation of ${\beta}$-Aryl-${\alpha}$,${\beta}$-Epoxy Silanes to Vinylsilanes by Magnesium-Magnesium Halide

  • Kang, Kyung-Tae;Park, Chun-Yi;Kim, Joung-Sook
    • Bulletin of the Korean Chemical Society
    • /
    • v.13 no.1
    • /
    • pp.48-53
    • /
    • 1992
  • The reactions of ${\beta}-aryl-{\alpha},{\beta}-epoxy$ silanes with magnesium bromide or magnesium iodide in the presence of excess magnesium in ether at room temperature afforded vinylsilanes in 18-100% yields. E-Vinylsilanes were predominant over Z-isomers (> 80%) regardless of the stereochemistry of ${\alpha},{\beta}-epoxy$ silanes.