... O3, molecular weight 48, which is the oxygen (O2) of the allotrope, there are three oxygen atoms, ozone is a pale blue at ... unstable and strong oxidizing ability. Ozone is an oxygen molecule (O2) to carry an oxygen atom (O) form, is a temporary state. ... with other fungicides ozone sterilization effect on E. coli were, oxygen (O3)> hypochlorite (HCLO)> chlorine dioxide (CLO2)> silver ions (Ag + )> ...