By far the most potent factor in altering the range of explosibility of
any gas when mixed with air is the diameter of the vessel containing or
delivering such mixture. Le Chatelier has investigated this point in the
case of acetylene, and his values are reproduced overleaf; they are
comparable among themselves, although it will be observed that his
absolute results differ somewhat from those obtained by Eitner which are
quoted later:
_Explosive Limits of Acetylene mixed with Air._--(Le Chatelier.)
___________________________________________________________
| | | |
| | Explosive Limits. | |
| Diameter of Tube |_______________________| Range of |
| in Millimetres. | | | Explosibility. |
| | Lower. | Upper. | |
|__________________|___________|___________|________________|
| | | | |
| | Per Cent. | Per Cent. | Per Cent. |
| 40 | 2.9 | 64 | 61.1 |
| 30 | 3.1 | 62 | 58.
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