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.

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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 Omolecules 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 Omolecules 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: C 9 H 12

Molecular weight = 120.19 g/mol

Reaction with Ozone C9H12 + 8 O3 ---- > 9 C02 + 6 H2

Oxygen moles required for reaction = 8

 

1,3,5-TRIMETHYLBENZENE (Mesitylene) Formula: C 9 H 12

Molecular weight = 120.19 g/mol

Reaction with Ozone C9H12 + 8 O3 ---- > 9 C02 + 6 H2

Oxygen moles required for reaction = 8

 

1,4-Dioxane, Formula: C 4 H 8 O 2

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: = CH 3 C 6 H 4 (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: C 6 H 6
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: C 20 H 12

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: C 6 H 5 CH 2 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 H 14 O 4

Molecular Weight = 278.34 g/mol

Reaction with Ozone:  CI2H14O4 + 27 O3----> 12 C02 + 7 H20 + 27 O2 

Oxygen moles required for reaction= 13.5

 

CAMPHOR, Formula: C 10 H 16 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: C 6 H 5 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: C2H 4 CL 2
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: C 6 H 5 CH 2 CH 3

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: C 9 H 12

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: C 5 H 12 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: C 10 H 14

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: C 9 H 12

Molecular Weight = 120.2 g/mol

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

Oxygen moles required for reaction = 8

 

NAPHTHALENE,   Formula: C 10 H 8
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: = C 6 H 8 N 2
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: C 6 H 6 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: C 14 H 10

Molecular weight = 178.24 g/mol

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

Oxygen moles required for reaction = 7

 

RESORCINOL, Formula: C 6 H 6 O 2
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: C 6 H 5 CHCH 2
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: C 4 H 10 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: C 21 H 21 PO 4 .
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: C 6 H 5 CH 3
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: C 6 H 4 (CH 3 )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: C 4 H 10

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: CnH 2 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: CnH
2 N+2 + O 3 ---- > nC0 2 + (n+1) H 2 O + O

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

 

MINERAL SPIRITS General Formula Cn H 2 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 H
2 n+2  + O 3 ---- > nCO 2 + (n+ 1) H 2 O + O 2 .

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

 

PROPANE Formula C 3 H 8

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: CH 2 CL 2
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 + O 3 --- > CLO + O 2

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 O 3 --- > 4 CO 2 + 10 H 2 O + CL 2 O

Oxygen moles required for reaction = 2

 

CHLOROFORM , Formula: CHCL 3
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: CH 3 CCL 3
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: CCL 2 CCL 2
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: CHCLCCL 2
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 O 3 ---- > 4 CO 2 + 6 H 2 O + CL 2 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: NH 3
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: NH 4 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: C 2 0H 12
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: C 10 H 16 N 2 O 8
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: C 2 H 7 CH 2O H
Molecular weight = 61.08 g/mol

Reaction with Ozone: 2 NH2CH2CH2OH + 13 O3 ---- > 4 CO2 + 7 H2O + 13 O2 + N2 .

Oxygen moles required for reaction: = 3.25

 

PHENACETIN, Formula C 10 H 13 NO 2
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 (S0 3 ), which in the presence of water forms sulfuric acid, a strong mineral acid.

 

AMMONIUM PERSULFATE, Formula: (NH 4 )2S 2 O 8
Molecular weight = 228.18 g/mol

Persulfuric acid (H 2 S 2 O 8 ) is a very unstable acid which releases oxygen upon exposure to heat. Its decomposition product is sulfuric acid (H2S0 4 ) a very strong mineral acid.
Reaction with Ozone: (NH
4 )2S2O 8 + 3 O 3 ---- >N 2 + H 2 S 2 O 8 + 3 H 2 O + 3 O 2  

Oxygen moles required for reaction = 1/5 O

 

SODIUM BISULFITE, Formula: NaHS0 3 .
Molecular weight = 104.061 g/mol

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

Oxygen moles required for reaction = 1.5

 

THIOGLYCOLIC ACID, Formula: C 2 H 4 O 2 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+ + O 3 ---- > Fe 3 + + O 3 -- \ O 3 -- <-----> O 2 -- + O 2 \ O -- + H 2 O ---- > OH +OH --

0.43 mg of O 3 per 1 mgof Fe 2+

 

MANGANESE, Formula: Mn 2+

Reaction with ozone: Mn 2+ + 2 O 3 + 4 H 2 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 + O
3 -- > CO 2 + H 2 O + O 2 .

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 O 3 : H 2 S is a practical ratio for use in drinking water

 

HYDROGEN PEROXIDE, Formula: H 2 O 2

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 H 3 PO 4
POTASSIUM PERSULFATE . Formula K 2 S 2 O 5
SILICAS Formula SiO 2
SODIUM BROMATE Formula NaBrO 3
SODIUM PERSULFATE Formula Na 2 S 2 O 5
STRONTIUM PEROXIDE Formula SrO 2
TETRASODIUM PYROPHOSPHATE Formula Na 4 P 2 O 7
TITANIUM DIOXIDE Formula TiO 2
CARBON TETRACHLORIDE (low temperature)Formula CLC 4

 

Reference:

https://educate-yourself.org/ozone/ozonereactionswithcommonchemicals29sep06.shtml

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