Acetylene polymerization high pressure chemical reactions

Other than the large potential energy, most of the hazards of SCFs are related to the chemical reactivity of the gas itself. Several SCFs, such as scHaO, scHCl and the other acids, corrode standard stainless steel reaction equipment, which could result in catastrophic failure. Explosive deflagration or decomposition is common with acetylene even at subcritical pressures [55]. Perfluoroethylene (SCC2F4) will explode at pressures above 2.7 bar unless inhibitor is added [56]. Even seemingly stable SCFs can explosively decompose at sufficiently high temperatures (e.g. 500 °C for hexane) [57]. Runaway polymerization can be a concern when polymerizable SCFs like SCC2H4 are used [58]. The... 

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