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 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: 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
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 H2O
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
2
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
