Photoresist Processing Trouble-Shooting Etchants and Solvents
Wet Chemical Etching: Theory Etching of Certain Materials Photoresist Stability Our Etchants and Ancillaries Solvents: Theory Solvents and Safety Properties Our Solvents
TWA Value Explosive Range Flash Point Ignition Temperature

The ignition of a combustible vapour mixed with air in the proper proportions will produce an explosion. This proper proportion is called the explosive range, and includes all concentrations of a mixture of flammable vapour or gas in air, in which a flash will occur or a flame will travel if the mixture is ignited. The lowest percentage at which this occurs is the lower explosive limit, and the highest percentage is the upper explosive limit. Explosive limits are expressed in percent by volume of vapour in air and, unless otherwise specified, under normal conditions of temperature and pressure. The lower explosive limit can be below 1 % (in case of (gasoline), the upper explosive limit of many organic solvents is typically some 10 %.

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