Citation: Ri Ya Jin, Shuang Qi Hu, Ying Hao Zhang, Tao Bo. Research on the explosion characteristics of chlorine dioxide gas[J]. Chinese Chemical Letters, ;2008, 19(11): 1375-1378. doi: 10.1016/j.cclet.2008.09.001 shu

Research on the explosion characteristics of chlorine dioxide gas

College of Chemical & Environmental Engineering, North University of China, Taiyuan 030051, China

Received Date: 26 February 2008

Fund Project: This work was supported by the National Natural Science Foundation of China (No. 50774068) and Shanxi Provincial Science and Technology Department,China.

The explosion characteristics of chlorine dioxide gas have been studied for the first time in a cylindrical exploder with a shell capacity of 201.The experimental results have indicated that the lower concentration limit for the explosive decomposition of chlorine dioxide gas is 9.5% ([ClO₂]/[airl]),whereas there is no corresponding upper concentration limit.The maximum pressure of explosion relative to the initial pressure was measured as 0.024 MPa at 10% ClO₂ and 0.641 MPa at 90% ClO₂.The induction time (the time from the moment of sparking to explosion) at 10% ClO₂ was 2195 ms,but at 90% ClO₂ the induction time was just 8 ms.The explosion reaction mechanism of ClO₂ is of a degenerate chain-branching type involving the formation of a stable intermediate (Cl₂O₃),from which the chain branching occurs.
- Chlorine dioxide gas,
- Explosive decomposition,
- Pressure of explosion,
- Explosion limit
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