ozone [Chemical formula, Physical, Chemical Properties and Reactions]

By: Prof. Dr. Fazal Rehman Shamil | Last updated: February 3, 2024

Chemical formula used for ozone is O3.

Physical Properties of Ozone:

Properties Details
ColorPale blue
Density2.144 g/L
Melting Point-192.5°C
Molecular FormulaO3
Molecular Weight47.997 g/mol
OdorCharacteristic pungent smell
StateGas at standard temperature and pressure

Chemical Properties of Ozone:

Properties Details
DecompositionDecomposes to oxygen upon exposure to heat or UV radiation
Oxidizing AgentOzone is a powerful oxidizing agent
pH ValueOzone dissolved in water can lower pH levels
Reaction with MetalsOzone reacts with many metals to form oxides or peroxides
Reaction with OrganicsOzone reacts with organic compounds to form ozonides or oxides
ReactivityHighly reactive, can react with various substances
Reducing PropertiesCan act as a reducing agent in certain reactions

Reaction of ozone with Alkali Metal

Alkali MetalReaction Products
Lithium (Li)Ozone reacts with lithium →lithium oxide (Li2O) , oxygen (O2)
Sodium (Na)Ozone reacts with sodium →sodium oxide (Na2O) , oxygen (O2)
Potassium (K)Ozone reacts with potassium →potassium oxide (K2O) , oxygen (O2)
Rubidium (Rb)Ozone reacts with rubidium →rubidium oxide (Rb2O) , oxygen (O2)
Cesium (Cs)Ozone reacts with cesium →cesium oxide (Cs2O) , oxygen (O2)

Reaction of ozone with Alkaline Earth Metal

Alkaline Earth MetalReaction Products
Beryllium (Be)Ozone reacts with beryllium →beryllium oxide (BeO) , oxygen (O2)
Magnesium (Mg)Ozone reacts with magnesium →magnesium oxide (MgO) , oxygen (O2)
Calcium (Ca)Ozone reacts with calcium →calcium oxide (CaO) , oxygen (O2)
Strontium (Sr)Ozone reacts with strontium →strontium oxide (SrO) , oxygen (O2)
Barium (Ba)Ozone reacts with barium →barium oxide (BaO) , oxygen (O2)

Reaction of ozone with Transition Metal

Transition MetalReaction Equation
Iron (Fe)2 Fe + O3  react and changes into  2 FeO + O2
Copper (Cu)2 Cu + 2 O3  react and changes into  2 CuO + 3 O2
Silver (Ag)2 Ag + 3 O3  react and changes into  Ag2O + 3 O2
Platinum (Pt)Pt + 2 O3  react and changes into  PtO2 + O2
Cobalt (Co)3 Co + 4 O3  react and changes into  Co3O4 + 4 O2

Reaction of ozone with Non-Transition Metal

Non-Transition MetalReaction Equation
Hydrogen (H)H2 + O3  react and changes into  H2O + O2
Carbon (C)C + 2 O3  react and changes into  CO2 + 2 O2
Nitrogen (N)N2 + 2 O3  react and changes into  2 NOx + O2
Sulfur (S)S + 2 O3  react and changes into  SO2 + 2 O2
Phosphorus (P)P4 + 5 O3  react and changes into  P4O10 + 5 O2

Reaction of ozone with Non-Metal

Non-MetalReaction Equation
Oxygen (O)2 O2 + O3  react and changes into  3 O3
Fluorine (F)2 F2 + O3  react and changes into  2 FO + 3 O2
Chlorine (Cl)Cl2 + 2 O3  react and changes into  2 ClO + 3 O2
Bromine (Br)2 Br2 + 2 O3  react and changes into  2 BrO + 3 O2
Iodine (I)2 I2 + 2 O3  react and changes into  2 IO + 3 O2

Reaction of ozone with Metalloid

MetalloidReaction Equation
Boron (B)2 B + 3 O3  react and changes into  B2O3 + 3 O2
Silicon (Si)Si + 2 O3  react and changes into  SiO2 + 2 O2
Germanium (Ge)Ge + 2 O3  react and changes into  GeO2 + 2 O2
Arsenic (As)4 As + 9 O3  react and changes into  2 As2O5 + 9 O2
Antimony (Sb)2 Sb + 5 O3  react and changes into  Sb2O4 + 5 O2