Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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The Effects of CIF$_3$and F$_2$on the Flammability Limit of H$_2$

H$_2$의 연소한계에 미치는 F$_2$와 CIF$_3$의 영향

  • ;
  • H.Ohtani (Yokohama National University, Faculty of Engineering, Department of Safety Engineering) ;
  • Y.Uehara (Yokohama National University, Faculty of Engineering, Department of Safety Engineering)
  • Published : 1994.09.01
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Abstract

Hydrogen(H$_2$) is used in the semiconductor industries, and some oxidizing gases such as fluoride(F$_2$) and chlorine trifluoride(CIF$_3$) are also used. As F$_2$and CIF$_3$are highly oxidizing gases, it were supposed to react vigorously with H$_2$. In this study, the flammability limit of F$_2$/$H_2$/Ar and CIF$_3$/$H_2$/Ar mixtures were investigated experimentally. As a result, it was found that the diluted F$_2$gas could be spontaneously ignited as compared to CIF$_3$mixture gas while being mixed with the diluted H$_2$gas. However, CIF$_3$diluted gas was not able to ignite spontaneously except for an electric spark. And the combustion characteristics and reaction kinetics were shown at the different diluted gases by the flammability diagram analyses between the F$_2$/$H_2$/Ar and CIF$_3$/$H_2$/Ar.

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