Ozone Reactions

Ozone Reaction with Various Compounds

Many organic and inorganic compounds react with ozone. These reactions can vary greatly depending upon the state of ozone (gaseous or aqueous), and the other chemicals involved in the reaction.

Below is an outline of basic chemical reactions between ozone and certain compounds. This is for reference only, as there are many other variables involved in actual processes. However, this data is helpful as a baseline to understand the fundamentals of ozone reactions and oxidation in general.

Click HERE for info on ozone effect on pathogens

For additional details or help with any potential reactions please contact our application engineers for help!

ACIDS, ALCOHOLS, ALDEHYDES, AND KETONES .

ACETIC ACID , Formula: CH3COOH

Molecular weight = 60.052 g/mol

Reaction with Ozone: C2H402 + 4 03 ----> 2 C02 + 2 H2O + 4 O2

Oxygen moles required for reaction = 2

ACETONE, Formula: CH3COCH3

Molecular weight = 58.08 g/mol

Reaction with Ozone: C3H6O + 8 03 ----> 3 C02 + 3 H2O + 8 O2

Oxygen moles required for reaction = 4

n-BUTYL ACETATE, Formula: C6H12 O2

Molecular weight = 116.16 g/mol

Reaction with Ozone: C6H12O2 + 16 O3 ----> 6 C02 + 6 H2O + 16 O2

Oxygen moles required for reaction = 8

BUTOXYETHANOL, Fonnula: C6HI4O2

Molecular weight = 118.17 g/mol

Reaction wtih Ozone: C6HI4O2 + 17 O3 ---- > 6 CO2 + 7 H2O + 4 O2

Oxygen moles required for reaction = 20.5

CETYL AlCOHOL, Formula: CH3(CH2 )15 OH

Molecular weight = 242.44 g/mol

Reaction with Ozone: CH3(CH2)15 OH + 48 03 ----> 16 CO2 + 17 H2O + 4 O2

Oxygen moles required for reaction = 24

FORMALDEHYDE, Formula: HCHO

Molecular weight = 30.031 g/mol

Reaction with Ozone: HCHO + 2 O3 ----> C02 + H2O + 2 O2

Oxygen moles required for reaction = 1

ISOPROPYL ALCOHOL, Fornula: CH3CHOHCH5

Molecular weight = 60.1 g/mol

Reaction with Ozone: CH3CHOHCH5 + 9 O3 ---- > 3 CO2 + 4 H2O + 9 O2

Oxygen moles required for reaction = 4.5

GLYCEROL, Formula: C3H8O3

Molecular weight = 92.09382 g/mol

Reaction with Ozone: C3H8O3 + 3 O3 ---- > 1C02 + 4H2O

Oxygen moles required for reaction = 1.5

METHACRYLIC ACID, Formula: CH2C (CH3) COOH

Molecular weight = 86.06 g/mol

Reaction with Ozone: CH2C (CH3) COOH + 9 O3 ---- > 4 CO2 + 3 H2 0 + 9 O2

Number of O2 molecules consumed per molecule of compound = 4.5

METHYL-ETHYL-KETONE, Formula: CH3COC2 H5.

Molecular weight = 72.11 g/mol

Reaction with Ozone: CH3COC2H5 + 11 O3 ---- > 4C02 + 4 H2O + 11 O2

Oxygen moles required for reaction = 5.5

PROPYLENE GLYCOL, Formula: C3H8 O2

Molecular weight = 79.09 g/mol

Reaction with Ozone: C3H8O2 + 8 O3 ---- > 3 CO2 + 4 H2O + 8 O2

Number of O2 molecules consumed per molecule of compound = 4

AROMATIC COMPOUNDS

1,2-DICHLOROBENZENE, Formula: C ₆ H ₄ CL ₂

Molecular weight = 147.01 g/mol

Reaction with Ozone C ₉ H ₁₂ CL ₂ + 5 O ₃ ---- > 6C0 ₂ + 2 H ₂ O + CL ₂ O

Oxygen moles required for reaction = 5

1,2,4-TRIMETHYLBENZENE, Formula: C₉ H₁₂

Molecular weight = 120.19 g/mol

Reaction with Ozone C₉H₁₂ + 8 O₃ ---- > 9 C0₂ + 6 H₂O

Oxygen moles required for reaction = 8

1,3,5-TRIMETHYLBENZENE (Mesitylene) Formula: C₉ H₁₂

Molecular weight = 120.19 g/mol

Reaction with Ozone C₉H₁₂ + 8 O₃ ---- > 9 C0₂ + 6 H₂O

Oxygen moles required for reaction = 8

1,4-Dioxane, Formula: C₄ H₈ O₂

Molecular weight = 88.11 g/mol

Reaction with Ozone C₄H₈O₂ + 6 O₃ ---- > 8C0₂ + 4 H2O + 0₂

Oxygen moles required for reaction = 3

2-METHYLPHENOL ( ortho -Cresol), Formula: = CH₃ C₆ H₄ (OH)

Molecular Weight = 108.14 g/mol

Reaction with Ozone 2CH₃C₆H₄OH + 14 O₃ ---- > 17 C0₂ + 8 H₂O

Oxygen moles required for reaction = 7

BENZENE, Formula: C₆ H₆
Molecular Weight = 78.11 g/mol

Reaction with Ozone C₆H₆ + 11 O₃ ---- > 6 C0₂ + 3 H₂O + 11 O₂

Oxygen moles required for reaction = 5.5

BENZOPYRENE, Formula: C₂₀ H₁₂

Molecular Weight = 252.31 g/mol

Reaction with Ozone C₂₀H₁₂ + 46 O₃ ---- > 60 C0₂ + 18 H₂O

Oxygen moles required for reaction = 17

BENZYL ALCOHOL, Formula: C₆ H₅ CH₂ OH

Molecular Weight = 108.14 g/mol

Reaction wtih Ozone. C₆H₅CH₂OH + 17 O₃ ----> 7 C0₂ + 4 H₂0 + 17 O₂

Oxygen moles required for reaction = 8.5

N.BUTYL PHTHALATE, Formula: C_I2 H₁₄ O₄

Molecular Weight = 278.34 g/mol

Reaction with Ozone: C_I2H₁₄O₄ + 27 O₃----> 12 C0₂ + 7 H₂0 + 27 O₂

Oxygen moles required for reaction= 13.5

CAMPHOR, Formula: C₁₀ H₁₆ O

Molecular Weight = 152.23 g/mol

Reaction With Ozone: C₁₀H₁₆O + 27 O₃ ---- > 10 C0₂ + 8 H₂O + 27 O₂

Oxygen moles required for reaction = 13.5

CHLOROBENZENE, Formula: C₆ H₅ CL

Molecular Weight = 112.56 g/mol

Reaction With Ozone: 2(C₆H₅CL) + 10 O₃ ---- > 12 C0₂ + 5 H₂O + CL₂O

Oxygen moles required for reaction = 5

CIS 1,2 DICHLOROETHANE, Formula: C2H₄ CL₂
Molecular Weight = 98.96 g/mol

Reaction With Ozone: C₂H₄CL₂ + 3 O₃ ---- > 2 C0₂ + 2 H₂O + CL₂+ O₂

Oxygen moles required for reaction = 6

ETHYLBENZENE, Formula: C₆ H₅ CH₂ CH₃

Molecular Weight = 106.17 g/mol

Reaction With Ozone: C₆H₅CH₂CH₃ + 7 O₃ ---- > 8 C0₂ + 5 H₂O

Oxygen moles required for reaction = 7

ISOPROPYLBENZENE (Cumene), Formula: C₉ H₁₂

Molecular Weight = 120.19 g/mol

Reaction with Ozone: C₉H₁₂ + 8 O₃ ----> 9 C0₂ + 6 H₂O

Oxygen moles required for reaction = 8

MTBE (Methyl tert -butyl ether), Formula: C₅ H₁₂ O

Molecular Weight = 88.15 g/mol

Reaction with Ozone: C₅H₁₂O + 5 O₃ ----> 5 C0₂ + 6 H₂O

Oxygen moles required for reaction = 5

n-BUTYLBENZENE, Formula: C₁₀ H₁₄

Molecular Weight = 134.22 g/mol

Reaction with Ozone: C₁₀H₁₄ + 9 O3 ----> 10 C0₂ + 7 H₂O

Oxygen moles required for reaction = 9

n-PROPYLBENZENE, Formula: C₉ H₁₂

Molecular Weight = 120.2 g/mol

Reaction with Ozone: C₉H₁₂ + 8 O₃ ----> 9 C0₂ + 6 H₂O

Oxygen moles required for reaction = 8

NAPHTHALENE, Formula: C₁₀ H₈
Molecular Weight = 128.1705 g/mol

Reaction with Ozone: C₁₀H₈ + 8 O₃ ----> 10 C0₂ + 4 H₂O

Oxygen moles required for reaction = 8

PARA-PHENYLENEDIAMINE, Formula: = C₆ H₈ N₂
Molecular Weight = 108.14 g/mol

Reaction with Ozone: C₆H₈N₂ + 16 O₃ ----> 6 C0₂ + 4 H₂O + N₂ + 16 O₂

Oxygen moles required for reaction = 8

PHENOL, Formula: C₆ H₆ O
Molecular weight = 94.11 g/mol

Reaction with Ozone: C₆H₆O + 6 O₃ ----> 6 C0₂ + 6 H₂O

Oxygen moles required for reaction = 6

PHENANTHRENE, Formula: C₁₄ H₁₀

Molecular weight = 178.24 g/mol

Reaction with Ozone: C₁₄H₁₀ + 11 O₃ ----> 14 C0₂ + 5 H₂O

Oxygen moles required for reaction = 7

RESORCINOL, Formula: C₆ H₆ O₂
Molecular weight = 110.1 g/mol

Reaction with Ozone: C₆H₆O₂ + 13 O₃ ----> 6 C0₂ + 3 H₂0 + 13 O₂

Number of O2 molecules consumed per molecule of compound = 6.5

STYRENE, Formula: C₆ H₅ CHCH₂
Molecular weight = 104.15 g/mol

Reaction with Ozone: C₆H₅CHCH₂ + 20 O₃ ---- > 8 C0₂ + 4 H₂O + 20 O₂

Oxygen moles required for reaction = 10

TBA ( tert -Butyl alcohol), Formula: C₄ H₁₀ O
Molecular weight = 74.12 g/mol

Reaction with Ozone: C₄H₁₀O + 4 O3 ---- > 4 C02 + 5 H2O

Oxygen moles required for reaction = 4

TRICRESYL, Formula: C₂₁ H₂₁ PO₄ .
Molecular weight = 368.37 g/mol

Reaction with Ozone C₂₁H₂₁PO₄.. + 102 O₃ ---- > 42 C0₂ + 21 H₂O + P₂O₅ + 102 O₂

Oxygen moles required for reaction = 51

TOLUENE, Formula: C₆ H₅ CH₃
Molecular weight = 92.14 g/mol

Reactlon with Ozone: C₆H₅CH₃ .+ 18 O₃ ----> 7 CO₂ + 4 H₂O + 18 O₂

Oxygen moles required for reaction = 9

XYLENE, Formula: C₆ H₄ (CH₃ )2
Molecular weight = 106.16 g/mol

Reaction with Ozone C₆H₄(CH₃)2 + 21 O₃ ----> 8 CO₂ + 5 H₂O + 21 O₂

Oxygen moles required for reaction = 10.5

ALIPHATIC COMPOUNDS

BUTANE, Formula: C₄ H₁₀

Molecular weight = 58.12 g/mol

Reaction with Ozone: C₄H₁₀ + 13 O₃ ----> 4 CO₂ + 5 H₂O + 13 O₂

Oxygen moles required for reaction = 6.5

LIQUEFIED PETROLEUM GAS, [LPG] General Formula: CnH₂ N+2. Both LPG (Liquefied petroleum gas) is a mixture of aliphatic, saturated hydrocarbons, therefore only a generic formula was used to describe the reaction with Ozone .
Reaction wtih Ozone: CnH₂ N+2 + O₃ ---- > nC0₂ + (n+1) H₂ O + O₂

Oxygen moles required for reaction: 3/2 n + 1/2 O

MINERAL SPIRITS General Formula Cn H₂ n+2
Mineral spirits are mixtures of aliphatic, saturated hydrocarbons, therefore only a generic formula was used to describe the reaction with Ozone. Reaction wtih Ozone: Cn H₂ n+2 + O₃ ---- > nCO₂ + (n+ 1) H₂ O + O₂ .

Oxygen moles required for reaction: 3/2 n + 1/2 O

PROPANE Formula C₃ H₈

Molecular weight = 44.097 g/mo l

Reaction wtih Ozone: C₃H₈ + 10 O₃ :----> 3 CO₂ + 4 H₂O + 10 O₂

Oxygen moles required for reaction = 5

CHLORIDES

Chlorides are organic compounds which have one or more chlorine atoms in their structure. These compounds react with Ozone to produce hypochloride which in turn decompose to produce chloride and release oxygen, as shown in the following reaction: CL₂O ---- > 2CL-1 + 1/2 O₂

1,1-DICHLOROETHENE (1,1-DCE), Formula: C ₂ H ₂ CL ₂
Molecular weight = 96.94 g/mol

Reaction with Ozone: CH ₂ CL ₂ + 1 O ₃ ---- > CO ₂ + H ₂ O + CL ₂

Oxygen moles required for reaction = 1.33

1,2-DICHLOROETHANE (1,1-DCA), Formula: C ₂ H ₄ CL ₂
Molecular weight = 98.96 g/mol

Reaction with Ozone: 2 CH ₄ CL ₂ + 4 O ₃ ---- > 2 CO ₂ + 2 H ₂ O + CL ₂

Oxygen moles required for reaction = 1.67

METHYLENE CHLORIDE (Dichloromethane), Formula: CH₂ CL₂
Molecular weight = 84.93 g/mol

Reaction with Ozone: 2 CH₂CL₂ + 4 O₃ ---- > CO₂ + H₂O + CL₂O + 4 O

Oxygen moles required for reaction = 1

CHLORINE , Formula: CL-
Atomic mass = 35.453 u

Reaction with Ozone: CL + O₃ --- > CLO + O₂

Oxygen moles required for reaction = 1

CHLOROETHANE , Formula: C ₂ H ₅ CL
Molecular weight = 64.51 g/mol

Reaction with Ozone: 2 C ₂ H ₅ CL + 5 O₃ --- > 4 CO₂ + 10 H₂ O + CL₂ O

Oxygen moles required for reaction = 2

CHLOROFORM , Formula: CHCL₃
Molecular weight = 119.38 g/mol

Reaction with Ozone: 6 CHCL₃ + 6 O₃ --- > 6 CO₂+ 3 H₂O + 9 CL₂O

Oxygen moles required for reaction = 2/9 O

METHYL CHLOROFORM , Formula: CH₃ CCL₃
Molecular weight = 133.4 g/mol

Reaction with Ozonee: 2 CH₃CCL₃ + 14 O₃ ---- > 4 CO₂ + 3 H₂O + 3 CL₂O + 14 O₂

Oxygen moles required for reaction = 3.5

PERCHLOROETHYLENE (PCE), Formula: CCL₂ CCL₂
Molecular weight = 165.83 g/mol

Reaction with Ozone: CCL₂CCL₂ + 6 O₃ ---- > 2 CO₂ + 2 CL₂O + 6 O₂

Oxygen moles required for reaction = 1.5

TRANS-1,2-DICHLOROETHENE, Formula: C ₂ H ₂ CL ₂
Molecular weight = 96.95 g/mol

Reaction with Ozone: CH ₂ CL ₂ + 1 O ₃ ---- > CO ₂ + H ₂ O + C L ₂

Oxygen moles required for reaction = 1.33

TRICHLOROETHYLENE (TCE), Formula: CHCLCCL₂
Molecular weight = 131.4 g/mol

Reaction with Ozone: 2 CHCLCCL₂ + 12 O3 ---- > 4 CO2 + H2O + 3 CL2O + 12 O2

Oxygen moles required for reaction = 3

VINYL CHLORIDE, Formula: C ₂ H ₃ CL
Molecular weight = 62.498 g/mol

Reaction with Ozone: 2 C ₂ H ₃ CL + 5 O₃ ---- > 4 CO₂ + 6 H₂ O + CL₂ O

Oxygen moles required for reaction = 1.67

NITROGEN CONTAINING COMPOUNDS

HYDROGEN CYANIDE, Formula: HCN
Molecular weight = 27.0253 g/mol

Reaction with Ozone: 2 HCN + 5 O₃ ---- > 2 CO₂ + H2O + N₂ + 5 O₂

Oxygen moles required for reaction = 1.25

AMMONIA, Formula: NH₃
Molecular weight = 17.031 g/mol

Reaction with Ozone: 2 NH₃ + 3 O₃ ----> N₂ + 3 H₂0 + 3 O₂ .

Oxygen moles required for reaction = 0.75

AMMONIUM HYDROXIDE, Formula: NH₄ OH
Molecular weight = 35.04 g/mol

Reaction with Ozone: 2 NH₄OH +3 O₃ ----> N₂ +5 H₂O + 3 O₂

Oxygen moles required for reaction = 0.75

BENZO(s)PYRENE, Formula: C₂ 0H₁₂
Molecular weight = 252.31 g/mol

Reaction with Ozone: 3 C₂0H₁₂ + 46 O₃ ---- > 60 CO₂ + 18 H₂O .

Oxygen moles required for reaction = 17

EDTA (Ethylene Diamine Tetracetic Acid) , Formula: C₁₀ H₁₆ N₂ O₈
Molecular weight = 292.24 g/mol

Reaction with Ozone: C₁₀H₁₆N₂O₈ + 20 O₃ ---- > 10 CO₂ + 8 H₂O + N₂ + 2 O₂

Oxygen moles required for reaction = 30

ETHANOLAMINE, Formula: C₂ H₇ CH_2O H
Molecular weight = 61.08 g/mol

Reaction with Ozone: 2 NH₂CH₂CH_2OH + 13 O₃ ---- > 4 CO₂ + 7 H₂O + 13 O₂ + N₂ .

Oxygen moles required for reaction: = 3.25

PHENACETIN, Formula C₁₀ H₁₃ NO₂
Molecular weight = 179.216 g/mol

Reaction with Ozone : CH₃CONHC₆H₄OC₂H₅. + 49 O₃ .---- > 20 CO₂ + 13 H₂O + N₂ + 49 O₂ .

Oxygen moles required for reaction = 24.5

S ULFUR CONTAINING COMPOUNDS

These compounds react with OZONE to produce sulfur trioxide (S0₃ ), which in the presence of water forms sulfuric acid, a strong mineral acid.

AMMONIUM PERSULFATE, Formula: (NH₄ )2S₂ O₈
Molecular weight = 228.18 g/mol

Persulfuric acid (H₂ S₂ O₈ ) is a very unstable acid which releases oxygen upon exposure to heat. Its decomposition product is sulfuric acid (H2S0₄ ) a very strong mineral acid.
Reaction with Ozone: (NH₄ )2S2O₈ + 3 O₃ ---- >N₂ + H₂ S₂ O₈ + 3 H₂ O + 3 O₂

Oxygen moles required for reaction = 1/5 O

SODIUM BISULFITE, Formula: NaHS0₃ .
Molecular weight = 104.061 g/mol

Reaction with Ozone: NaHS0₃ + O₃ ---- > NaHSO₄ + O₂

Oxygen moles required for reaction = 1.5

THIOGLYCOLIC ACID, Formula: C₂ H₄ O₂ S
Molecular weight = 92.11 g/mol

Reaction with Ozone: HSCH₂COOH + 7 O₃ ---- > 2 CO₂ + 2 H₂O + S0₃ + 7 O₂ .

Oxygen moles required for reaction = 3.5

METALS

FERROUS IRON, Formula: Fe ²⁺

Reaction with ozone: Fe ²⁺ + O₃ ---- > Fe ₃ ⁺ + O₃^--
\ O₃^-- <-----> O₂^-- + O₂ \ O^-- + H₂ O ---- > OH +OH^--

0.43 mg of O₃ per 1 mgof Fe ²⁺

MANGANESE, Formula: Mn ²⁺

Reaction with ozone: Mn ²⁺ + 2 O₃ + 4 H₂ O ---- > 2 MnO(OH) ₂ (s) + 2 O ₂ + 4 H+

0.88 mg of O3 per 1 mgof Mn ²⁺

O THER

ALKYLATED SILICATES General Formula (RnSiO)m. These silicates produce SILICA (silicon dioxide) which is considered a respiratory hazard

Reaction with Ozone: (RnSiO)m + O₃ ---- > CO₂ + H₂O + SiO₂ .

Oxygen moles required for reaction = 4 5m

NON-IONIC DETERGENTS Formula CxHy , Non-ionic detergents do not have a generic formula. therefore the formula CxHy is used to define this class of compounds.
Reaction with Ozone: CxHy + O₃ -- > CO₂ + H₂ O + O₂ .

Oxygen moles required for reaction = 6x + 1.5y

HYDROGEN SULFIDE, Formula: H2S

Molecular weight = 34.1 g/mol

Reaction with Ozone: H₂S + O₃ -- > H₂O + SO₂ .

3 mg of O3 per 1 mg of H ₂ S (Theoretical), 4:1 O₃ : H ₂ S is a practical ratio for use in drinking water

HYDROGEN PEROXIDE, Formula: H₂ O₂

Molecular weight = 34.0147 g/mol

Reaction with Ozone: H ₂ O ₂ + O ₃ ---- > O ₂ + 2OH ^- The combination of Ozone and Hydrogen Peroxide is an Advanced Oxidation Process, that creates the OH-, an oxidant more powerful that ozone alone.

NON-REACTIVE COMPOUNDS The following compounds do not react with OZONE.

CALCIUM OXIDE Formula CaO
PHOSPHORIC ACID Formula H₃ PO₄
POTASSIUM PERSULFATE . Formula K₂ S₂ O₅
SILICAS Formula SiO₂
SODIUM BROMATE Formula NaBrO₃
SODIUM PERSULFATE Formula Na₂ S₂ O₅
STRONTIUM PEROXIDE Formula SrO₂
TETRASODIUM PYROPHOSPHATE Formula Na₄ P₂ O₇
TITANIUM DIOXIDE Formula TiO₂
CARBON TETRACHLORIDE (low temperature)Formula CLC₄