Hydroperoxides are mildly acidic. The range is indicated by 11.5 for Methyl hydroperoxide| to 13.1 for .
Hydroperoxides can be reduced to alcohols with lithium aluminium hydride, as described in this idealized equation:
This reaction is the basis of methods for analysis of organic peroxides. Another way to evaluate the content of peracids and peroxides is the volumetric titration with alkoxides such as sodium ethoxide.
The phosphite esters and tertiary phosphines also effect reduction: