I want to make a solution of HCl and H2SO4, however mixing the two will create a lot of HCl gas and is quite dangerous. Is there a way to make this solution safely? Can I somehow mix HCl with a sulfate salt to get an acidic solution with all the ions present?
If they are dilute, yes. Otherwise, you will want to add cold H2SO4 very slowly to cold HCl, in a fume hood. Or you can mix HCl with a sulfate salt, it just won't be as strong of an acid.
Sometimes, mixing two acids could be useful to dissolve small quantities of minerals. HCl+HNO3 or H2SO4+HF are effective mixtures. somehow, whenever you mix two acids you must to use an extractor hood.
The strength of reaction and the extent of oxidation will depend on concentration of H2SO4 , better the concentration, higher will be the oxidation, and more oxy-acids of Chlorine will be formed in larger concentrations.
Its depend on Acid concentration. It is better to add more concentrated acid to less concentrated acid gradually under the vacuum hood.
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