• Title/Summary/Keyword: air-blowing tester

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The Flash Points of the Butylacetate+2-Propanol System Measured By Air Blowing Tester

  • Ha, Dong Myeong;Lee, Sung Jin;Mok, Yun Soo;Choi, Jae Wook
    • International Journal of Safety
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    • v.2 no.1
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    • pp.34-38
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    • 2003
  • The lower and upper flash points of the flammable binary system, butylacetate+2-propanol were measured by air blowing tester. The shape of the concentration-temperature region of flash depended on the components of the mixture in solution. The experimental data were compared with the values calculated by the reduced model under an ideal solution assumption and the flash point-prediction models based on Van Laar equation. Good qualitative agreement was obtained with these models. The prediction results of these models can thus be applied to incorporate inherently safer design for chemical process, such as the determination of the safe storage conditions for flammable solutions.

Study on the Flash Point Determination of 2-Propanol-Toluene Mixtures (2-프로판올과 톨루엔 혼합물질의 인화점 측정에 관한 연구)

  • 목연수;최재욱;김영일;최일곤;하동명
    • Journal of the Korean Society of Safety
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    • v.12 no.3
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    • pp.114-119
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    • 1997
  • The lower flash points and upper flash points of 2-propanol and toluene mixtures were determined by air-blowing method instead of Tag-closed flash point tester. The relations between the flash points and the composition of the mixtures are as follows, $T_{F.L}=4.3182+6.0909X_1$ $T_{F.U}=39.3636-2.9091X_1$ As results, the experimental data and the estimated values from the relations are considerably agreed, and we could plotted the relative diagram between flash points and the explosive range.

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Measurement and Investigation of Combustible Characteristics for Risk Assessment of Toluene (톨루엔의 위험성 평가를 위한 연소특성치 측정 및 고찰)

  • Ha, Dong-Myeong;Jeong, Kee-Sin
    • Fire Science and Engineering
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    • v.24 no.2
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    • pp.76-81
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    • 2010
  • For the safe handling of toluene, explosion limit at $25^{\circ}C$ and the temperature dependence of the explosion limits were investigated. And flash point and AIT (Autoignition Temperature) for toluene were experimented. By using the literature data, the lower and upper explosion limits of toluene recommended 1.13 vol% and 7.9 vol%, respectively. In this study, measured the lower and upper flash points of toluene by air-blowing tester were $5^{\circ}C$ and $40^{\circ}C$, respectively. And measured the upper flash points of toluene by Setaflash tester was $41.5^{\circ}C$. This study measured relationship between the AITs and the ignition delay times by using ASTM E659-78 apparatus for toluene, and the experimental AIT of toluene was $547^{\circ}C$. The new equations for predicting the temperature dependence of the explosion limits of toluene is proposed. The values calculated by the proposed equations were a good agreement with the literature data.