Where could the base strength of hydrogen peroxide be found?
H
2O
22 is quoted to be weakly acidic: for the reaction
H
2O
22
HOO
-+H
+the pKa is about 10
-12, with comparison to the reaction
H
2O
HO
-+H
+whose pKw is 10
-14But what is the equilibrium constant for the reaction
H
2O
2+H
3O
+ H
3O
2++H
2O?
I see that 100 % H
2O
2 is a solvent whose dielectric constant is close to that of water. Many polar salts possess similar solubility in hydrogen peroxide as in water, only slightly different - in either direction.
How do strong acids behave?
H
2SO
4 tends to incorporate peroxide as ligand to S.
But HCl has no such option.
So how soluble is HCl in concentrated H
2O
2?
Also how stable is H
3O
2+ cation towards loss of oxygen? H
2O
2 is liable to decay, but it is sluggish. Does strongly acidic reaction catalyze the decay, or not?
Note that HCl can itself stabilize hydrogen peroxide as a diluent. Hydrogen peroxide in high concentrations is liable to thermal runaway - less so at lower concentrations. Since concentrated HCl in water is under 60 % water, concentrated HCl in hydrogen peroxide might also be stabilized by the limited amount of hydrogen peroxide present...