why can a mixture of ethyne and air not used for welding?

Asked by ayushisahai | 9th May, 2009, 03:43: PM

Expert Answer:

Mixture of ethyne and air cannot be used due to hazard  associated with ethyne's intrinsic instability; samples of concentrated or pure acetyle will explosively decompose in air. Acetylene can explode with extreme violence if the pressure of the gas exceeds about 200 kPa (≈39 psi) as a gas  or when in liquid or solid form.

Answered by  | 7th Jun, 2009, 04:19: PM

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