The pH of bleach is around 12. Ideally, all bleaches are highly basic or alkaline, hence the reason for their high pH values. The most common bleaching agent is sodium hypochlorite whose pH ranges between 12 and12.6.
Bleach is a highly potent and highly toxic household product that is generally characterized by its clear color and strong odor. The exact Ph level of bleach is 13. It is one of the highest chemicals on the Ph scale.