Is hydrogen easy to ignite?
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This post was last edited by sxf1028102800 on 2017-4-15 at 18:51. Hello everyone, is hydrogen easy to ignite? What temperature is required to ignite it? Please share your thoughts. Thank you. I read in some materials that the ignition temperature of hydrogen is 500 degrees; does hydrogen only burn when the temperature reaches 500 degrees?
More or less; it has a high ignition point and a large explosion range
No! The ignition point is tested under theoretical conditions. In actual production, hydrogen is extremely easy to ignite or deflagrate, with a minimum ignition energy of only 0.02 mJ.
There might be a misunderstanding among everyone. Ignition temperature and ignition energy are different methods of initiation. The ignition temperature is caused by the heating of the surface ； Ignition energy is due to ignition by an electric spark. It’s not the case that anyone can be ignited by just 0.02 mJ of energy.
The auto-ignition temperature of pure hydrogen in oxygen is very high, exceeding 500 degrees. However, hydrogen is extremely easy to ignite in the presence of air or oxygen; spontaneous combustion and being ignited are completely different concepts. Materials with a high autoignition point have a lower ignition temperature.
It has an extremely low ignition point, so it is necessary to prevent the generation of static electricity