I have two bottles of NaOH 10% solution in the gas trap system to keep the gases after the tube furnace. What are the real reactions?
Of course a neutralization reaction will occur between both sulfurous acid (resulted from the reaction between SO2 gas and water) and sulfuric acid (resulted from the reaction between SO3 gas and water) with NaOH. In addition, a direct reaction between SO2 and SO3 gases with NaOH may be also be occurred to give a same products because those gases having acidic characteristics.
Of course a neutralization reaction will occur between both sulfurous acid (resulted from the reaction between SO2 gas and water) and sulfuric acid (resulted from the reaction between SO3 gas and water) with NaOH. In addition, a direct reaction between SO2 and SO3 gases with NaOH may be also be occurred to give a same products because those gases having acidic characteristics.
The reaction will first take place to produce Na2SO3. After the saturatioon of NaOH, the additional SO3 absorved will convert to Na HSO3 ( Na2SO3+ SO2+2O wil render 2(NaHSO3)
sorry typing mistake instead of O2 I mean H2O. The oxidation of SO2 to SO3 is made in gas phase in a catalytic reaction. I dont know if you can convert Na2So3 to Na2SO4 in solution.
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