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7446-09-5

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7446-09-5 Usage

Chemical Description

Sulfur dioxide is a colorless gas with a pungent odor that is used in the production of sulfuric acid and other chemicals.

Check Digit Verification of cas no

The CAS Registry Mumber 7446-09-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,4,4 and 6 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 7446-09:
(6*7)+(5*4)+(4*4)+(3*6)+(2*0)+(1*9)=105
105 % 10 = 5
So 7446-09-5 is a valid CAS Registry Number.
InChI:InChI=1/O2S/c1-3-2

7446-09-5SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name sulfur dioxide

1.2 Other means of identification

Product number -
Other names SULPHUR DIOXIDE

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:7446-09-5 SDS

7446-09-5Synthetic route

sulfur dichloride
10545-99-0

sulfur dichloride

sulfur trioxide
7446-11-9

sulfur trioxide

A

thionyl chloride
7719-09-7

thionyl chloride

B

sulfur dioxide
7446-09-5

sulfur dioxide

Conditions
ConditionsYield
In neat (no solvent) below -10°C or under pressure;;A 100%
B n/a
barium sulfide

barium sulfide

A

barium sulfate

barium sulfate

B

sulfur dioxide
7446-09-5

sulfur dioxide

Conditions
ConditionsYield
With oxygen 1000°C;A 100%
B 0%
With O2 1000°C;A 100%
B 0%
N-benzyl-2,4-dinitro-N-(prop-2-yn-1-yl)benzenesulfonamide
1606142-70-4

N-benzyl-2,4-dinitro-N-(prop-2-yn-1-yl)benzenesulfonamide

A

N-propargylbenzylamine

N-propargylbenzylamine

B

S-(2,4-Dinitrophenyl)-cystein
3165-76-2

S-(2,4-Dinitrophenyl)-cystein

C

sulfur dioxide
7446-09-5

sulfur dioxide

Conditions
ConditionsYield
In aq. phosphate buffer for 0.5h; pH=7.4;A n/a
B n/a
C 100%
C16H17N3O7S

C16H17N3O7S

A

S-(2,4-Dinitrophenyl)-cystein
3165-76-2

S-(2,4-Dinitrophenyl)-cystein

B

2-methoxy-N-propylaniline
139944-56-2

2-methoxy-N-propylaniline

C

sulfur dioxide
7446-09-5

sulfur dioxide

Conditions
ConditionsYield
In aq. phosphate buffer for 0.5h; pH=7.4;A n/a
B n/a
C 100%
N-butyl-N-(2-methoxyphenyl)-2,4-dinitrobenzenesulfonamide

N-butyl-N-(2-methoxyphenyl)-2,4-dinitrobenzenesulfonamide

A

S-(2,4-Dinitrophenyl)-cystein
3165-76-2

S-(2,4-Dinitrophenyl)-cystein

B

butyl-(2-methoxy-phenyl)amine
65570-20-9

butyl-(2-methoxy-phenyl)amine

C

sulfur dioxide
7446-09-5

sulfur dioxide

Conditions
ConditionsYield
In aq. phosphate buffer for 0.5h; pH=7.4;A n/a
B n/a
C 100%
N-methyl-2,4-dinitro-N-(prop-2-yn-1-yl)benzenesulfonamide

N-methyl-2,4-dinitro-N-(prop-2-yn-1-yl)benzenesulfonamide

A

N-methylpropargylamine
35161-71-8

N-methylpropargylamine

B

S-(2,4-Dinitrophenyl)-cystein
3165-76-2

S-(2,4-Dinitrophenyl)-cystein

C

sulfur dioxide
7446-09-5

sulfur dioxide

Conditions
ConditionsYield
In aq. phosphate buffer for 0.5h; pH=7.4;A n/a
B n/a
C 100%
N-benzyl-N-(3-(N-(2-methoxybenzyl)-2,4-dinitrophenylsulfonamido)propyl)-2,4-dinitrobezenesulfonamide

N-benzyl-N-(3-(N-(2-methoxybenzyl)-2,4-dinitrophenylsulfonamido)propyl)-2,4-dinitrobezenesulfonamide

A

S-(2,4-Dinitrophenyl)-cystein
3165-76-2

S-(2,4-Dinitrophenyl)-cystein

B

C18H24N2O

C18H24N2O

C

sulfur dioxide
7446-09-5

sulfur dioxide

Conditions
ConditionsYield
In aq. phosphate buffer for 0.5h; pH=7.4;A n/a
B n/a
C 100%
N-benzyl-N-(3-(N-(4-methoxybenzyl)-2,4-dinitrophenylsulfonamido)propyl)-2,4-dinitrobezenesulfonamide

N-benzyl-N-(3-(N-(4-methoxybenzyl)-2,4-dinitrophenylsulfonamido)propyl)-2,4-dinitrobezenesulfonamide

A

S-(2,4-Dinitrophenyl)-cystein
3165-76-2

S-(2,4-Dinitrophenyl)-cystein

B

C18H24N2O

C18H24N2O

C

sulfur dioxide
7446-09-5

sulfur dioxide

Conditions
ConditionsYield
In aq. phosphate buffer for 0.5h; pH=7.4;A n/a
B n/a
C 100%
N-benzyl-N-(3-(N-(2-methoxyphenyl)-2,4-dinitrophenylsulfonamido)propyl)-2,4-dinitrobenzenesulfonamide
1606142-72-6

N-benzyl-N-(3-(N-(2-methoxyphenyl)-2,4-dinitrophenylsulfonamido)propyl)-2,4-dinitrobenzenesulfonamide

A

S-(2,4-Dinitrophenyl)-cystein
3165-76-2

S-(2,4-Dinitrophenyl)-cystein

B

C17H22N2O

C17H22N2O

C

sulfur dioxide
7446-09-5

sulfur dioxide

Conditions
ConditionsYield
In aq. phosphate buffer for 0.5h; pH=7.4;A n/a
B n/a
C 100%
N-benzyl-N-(3-(N-(3-methoxyphenyl)-2,4-dinitrophenylsulfonamido)propyl)-2,4-dinitrobenzenesulfonamide
1606142-73-7

N-benzyl-N-(3-(N-(3-methoxyphenyl)-2,4-dinitrophenylsulfonamido)propyl)-2,4-dinitrobenzenesulfonamide

A

S-(2,4-Dinitrophenyl)-cystein
3165-76-2

S-(2,4-Dinitrophenyl)-cystein

B

C17H22N2O

C17H22N2O

C

sulfur dioxide
7446-09-5

sulfur dioxide

Conditions
ConditionsYield
In aq. phosphate buffer for 0.5h; pH=7.4;A n/a
B n/a
C 100%
N-benzyl-N-(3-(N-(4-methoxyphenyl)-2,4-dinitrophenylsulfonamido)propyl)-2,4-dinitrobenzenesulfonamide
1606142-74-8

N-benzyl-N-(3-(N-(4-methoxyphenyl)-2,4-dinitrophenylsulfonamido)propyl)-2,4-dinitrobenzenesulfonamide

A

S-(2,4-Dinitrophenyl)-cystein
3165-76-2

S-(2,4-Dinitrophenyl)-cystein

B

C17H22N2O

C17H22N2O

C

sulfur dioxide
7446-09-5

sulfur dioxide

Conditions
ConditionsYield
In aq. phosphate buffer for 0.5h; pH=7.4;A n/a
B n/a
C 100%
N-benzyl-2,4-dinitro-benzenesulfonamide

N-benzyl-2,4-dinitro-benzenesulfonamide

A

S-(2,4-Dinitrophenyl)-cystein
3165-76-2

S-(2,4-Dinitrophenyl)-cystein

B

sulfur dioxide
7446-09-5

sulfur dioxide

C

benzylamine
100-46-9

benzylamine

Conditions
ConditionsYield
In aq. phosphate buffer for 0.5h; pH=7.4;A n/a
B 100%
C n/a
(N-benzyl, N-methyl) 2,4-dinitrophenylsulfonamide
1352615-98-5

(N-benzyl, N-methyl) 2,4-dinitrophenylsulfonamide

A

S-(2,4-Dinitrophenyl)-cystein
3165-76-2

S-(2,4-Dinitrophenyl)-cystein

B

sulfur dioxide
7446-09-5

sulfur dioxide

C

benzyl-methyl-amine
103-67-3

benzyl-methyl-amine

Conditions
ConditionsYield
In aq. phosphate buffer for 0.5h; pH=7.4;A n/a
B 100%
C n/a
sulfur trioxide
7446-11-9

sulfur trioxide

A

sulfur dioxide
7446-09-5

sulfur dioxide

B

oxygen
80937-33-3

oxygen

Conditions
ConditionsYield
995 °C in N2; part of a Mg-S-I water splitting cycle;A 99%
B 99%
copper(II) oxide In gas equil. react.;
platinum In gas equil. react.;
N-allyl-N-(3-methoxyphenyl)-2,4-dinitrobenzenesulfonamide

N-allyl-N-(3-methoxyphenyl)-2,4-dinitrobenzenesulfonamide

A

S-(2,4-Dinitrophenyl)-cystein
3165-76-2

S-(2,4-Dinitrophenyl)-cystein

B

sulfur dioxide
7446-09-5

sulfur dioxide

C

N-allyl-3-methoxyaniline
117531-37-0

N-allyl-3-methoxyaniline

Conditions
ConditionsYield
In aq. phosphate buffer for 0.5h; pH=7.4;A n/a
B 99%
C n/a
sulfur dichloride
10545-99-0

sulfur dichloride

sulfur trioxide
7446-11-9

sulfur trioxide

A

thionyl chloride
7719-09-7

thionyl chloride

B

sulfur dioxide
7446-09-5

sulfur dioxide

Conditions
ConditionsYield
In neat (no solvent) below -10°C or under pressure;;A 100%
B n/a
barium sulfide

barium sulfide

A

barium sulfate

barium sulfate

B

sulfur dioxide
7446-09-5

sulfur dioxide

Conditions
ConditionsYield
With oxygen 1000°C;A 100%
B 0%
With O2 1000°C;A 100%
B 0%
N-benzyl-2,4-dinitro-N-(prop-2-yn-1-yl)benzenesulfonamide
1606142-70-4

N-benzyl-2,4-dinitro-N-(prop-2-yn-1-yl)benzenesulfonamide

A

N-propargylbenzylamine
1197-51-9

N-propargylbenzylamine

B

S-(2,4-Dinitrophenyl)-cystein
3165-76-2

S-(2,4-Dinitrophenyl)-cystein

C

sulfur dioxide
7446-09-5

sulfur dioxide

Conditions
ConditionsYield
In aq. phosphate buffer for 0.5h; pH=7.4;A n/a
B n/a
C 100%
C16H17N3O7S

C16H17N3O7S

A

S-(2,4-Dinitrophenyl)-cystein
3165-76-2

S-(2,4-Dinitrophenyl)-cystein

B

2-methoxy-N-propylaniline
139944-56-2

2-methoxy-N-propylaniline

C

sulfur dioxide
7446-09-5

sulfur dioxide

Conditions
ConditionsYield
In aq. phosphate buffer for 0.5h; pH=7.4;A n/a
B n/a
C 100%
N-butyl-N-(2-methoxyphenyl)-2,4-dinitrobenzenesulfonamide

N-butyl-N-(2-methoxyphenyl)-2,4-dinitrobenzenesulfonamide

A

S-(2,4-Dinitrophenyl)-cystein
3165-76-2

S-(2,4-Dinitrophenyl)-cystein

B

butyl-(2-methoxy-phenyl)amine
65570-20-9

butyl-(2-methoxy-phenyl)amine

C

sulfur dioxide
7446-09-5

sulfur dioxide

Conditions
ConditionsYield
In aq. phosphate buffer for 0.5h; pH=7.4;A n/a
B n/a
C 100%
N-methyl-2,4-dinitro-N-(prop-2-yn-1-yl)benzenesulfonamide

N-methyl-2,4-dinitro-N-(prop-2-yn-1-yl)benzenesulfonamide

A

N-methylpropargylamine
35161-71-8

N-methylpropargylamine

B

S-(2,4-Dinitrophenyl)-cystein
3165-76-2

S-(2,4-Dinitrophenyl)-cystein

C

sulfur dioxide
7446-09-5

sulfur dioxide

Conditions
ConditionsYield
In aq. phosphate buffer for 0.5h; pH=7.4;A n/a
B n/a
C 100%
N-benzyl-N-(3-(N-(2,4-dimethoxybenzyl)-2,4-dinitrophenylsulfonamido)propyl)-2,4-dinitrobezenesulfonamide

N-benzyl-N-(3-(N-(2,4-dimethoxybenzyl)-2,4-dinitrophenylsulfonamido)propyl)-2,4-dinitrobezenesulfonamide

A

S-(2,4-Dinitrophenyl)-cystein
3165-76-2

S-(2,4-Dinitrophenyl)-cystein

B

C19H26N2O2

C19H26N2O2

C

sulfur dioxide
7446-09-5

sulfur dioxide

Conditions
ConditionsYield
In aq. phosphate buffer for 0.5h; pH=7.4;A n/a
B n/a
C 99%
silver sulfide

silver sulfide

sulfur dioxide
7446-09-5

sulfur dioxide

Conditions
ConditionsYield
With oxygen In neat (no solvent) heating Ag2S in a quartz tube (4 cm*cm cross section) under O2/N2 (15 vol % O2) at 1200°C;;98%
With O2 In neat (no solvent) heating Ag2S in a quartz tube (4 cm*cm cross section) under O2/N2 (15 vol % O2) at 1200°C;;98%
With sulfuric acid by concd. H2SO4, formation of SO2 promoted by SeO2 or HgSO4;
N-ethyl-N-(3-methoxyphenyl)-2,4-dinitrobenzenesulfonamide

N-ethyl-N-(3-methoxyphenyl)-2,4-dinitrobenzenesulfonamide

A

S-(2,4-Dinitrophenyl)-cystein
3165-76-2

S-(2,4-Dinitrophenyl)-cystein

B

N-ethyl-m-anisidine
41115-30-4

N-ethyl-m-anisidine

C

sulfur dioxide
7446-09-5

sulfur dioxide

Conditions
ConditionsYield
In aq. phosphate buffer for 0.5h; pH=7.4;A n/a
B n/a
C 98%
N-benzyl-N-(3-(N-(2-fluorophenyl)-2,4-dinitrophenylsulfonamido)propyl)-2,4-dinitrobenzenesulfonamide
1606142-76-0

N-benzyl-N-(3-(N-(2-fluorophenyl)-2,4-dinitrophenylsulfonamido)propyl)-2,4-dinitrobenzenesulfonamide

A

S-(2,4-Dinitrophenyl)-cystein
3165-76-2

S-(2,4-Dinitrophenyl)-cystein

B

C16H19FN2

C16H19FN2

C

sulfur dioxide
7446-09-5

sulfur dioxide

Conditions
ConditionsYield
In aq. phosphate buffer for 0.5h; pH=7.4;A n/a
B n/a
C 98%
ferrocene
102-54-5

ferrocene

A

ferricinium chloroferrate

ferricinium chloroferrate

B

sulfur dioxide
7446-09-5

sulfur dioxide

Conditions
ConditionsYield
With sulfuryl dichloride In benzene equimolar amt. of SO2Cl2 in boiling benzene; mechanism discussed;; a small amt. of polymeric products forms in addition;;A 97%
B >99
1,2,2-trifluorodichloroethanesulfonyl chloride
7740-58-1

1,2,2-trifluorodichloroethanesulfonyl chloride

A

1,1,2-Trichloro-1,2,2-trifluoroethane
76-13-1

1,1,2-Trichloro-1,2,2-trifluoroethane

B

sulfur dioxide
7446-09-5

sulfur dioxide

Conditions
ConditionsYield
200°C, 7 days;A 97%
B 97%
100°C, 7 days;A 19%
B 18%
N-(3-methoxyphenyl)-N-methyl-2,4-dinitrobenzenesulfonamide

N-(3-methoxyphenyl)-N-methyl-2,4-dinitrobenzenesulfonamide

A

S-(2,4-Dinitrophenyl)-cystein
3165-76-2

S-(2,4-Dinitrophenyl)-cystein

B

3-methoxy-N-methylaniline
14318-66-2

3-methoxy-N-methylaniline

C

sulfur dioxide
7446-09-5

sulfur dioxide

Conditions
ConditionsYield
In aq. phosphate buffer for 0.5h; pH=7.4;A n/a
B n/a
C 97%
N-ethyl-2,4-dinitro-N-(prop-2-yn-1-yl)benzenesulfonamide

N-ethyl-2,4-dinitro-N-(prop-2-yn-1-yl)benzenesulfonamide

A

N-(ethyl)propargylamine
6943-44-8

N-(ethyl)propargylamine

B

S-(2,4-Dinitrophenyl)-cystein
3165-76-2

S-(2,4-Dinitrophenyl)-cystein

C

sulfur dioxide
7446-09-5

sulfur dioxide

Conditions
ConditionsYield
In aq. phosphate buffer for 0.5h; pH=7.4;A n/a
B n/a
C 97%
N-benzyl-N-(2-methoxyphenyl)-2,4-dinitrobenzenesulfonamide

N-benzyl-N-(2-methoxyphenyl)-2,4-dinitrobenzenesulfonamide

A

S-(2,4-Dinitrophenyl)-cystein
3165-76-2

S-(2,4-Dinitrophenyl)-cystein

B

N-benzyl-2-methoxyaniline
50798-94-2

N-benzyl-2-methoxyaniline

C

sulfur dioxide
7446-09-5

sulfur dioxide

Conditions
ConditionsYield
In aq. phosphate buffer for 0.5h; pH=7.4;A n/a
B n/a
C 96%
sulfuryl dichloride
7791-25-5

sulfuryl dichloride

cadmium(II) sulphide

cadmium(II) sulphide

A

sulfur dioxide
7446-09-5

sulfur dioxide

B

sulfur
7704-34-9

sulfur

C

cadmium(II) chloride
10108-64-2

cadmium(II) chloride

Conditions
ConditionsYield
3-4 h at 350°C in a sealed bombe tube;A n/a
B n/a
C 95%
3-4 h at 350°C in a sealed bombe tube;A n/a
B n/a
C 95%
16 h at 250°C in a sealed bombe tube;A n/a
B n/a
C 94%
silver sulfide

silver sulfide

A

sulfur dioxide
7446-09-5

sulfur dioxide

B

sulfur trioxide
7446-11-9

sulfur trioxide

Conditions
ConditionsYield
With oxygen In neat (no solvent) heating in a stream of O2 at 550 - 600°C (formation of SO2 from 82 % of S and of Ag2SO4), later at 980 - 1070°C (decomposition of Ag2SO4);;A 95%
B 5%
With O2 In neat (no solvent) heating in a stream of O2 at 550 - 600°C (formation of SO2 from 82 % of S and of Ag2SO4), later at 980 - 1070°C (decomposition of Ag2SO4);;A 95%
B 5%
carbon disulfide
75-15-0

carbon disulfide

dihydrogen peroxide
7722-84-1

dihydrogen peroxide

oxygen
80937-33-3

oxygen

A

sulfur dioxide
7446-09-5

sulfur dioxide

B

hydroperoxyl radical
7782-44-7

hydroperoxyl radical

Conditions
ConditionsYield
In gas Kinetics; byproducts: HS; other Radiation; H2O2 is photolysed at 266 nm (Nd:YAG laser) in a flow reactor, addn. of CS2 (NO) and O2 (N2); HO2 yield measurement by LMR (laser magnetic resonance), SO2 yield measurement by CIMS (chemical ionization mass spectometry);A 90%
B 95%
N-(3-methoxybenzyl)-2,4-dinitro-N-(prop-2-yn-yl)benzenesulfonamide

N-(3-methoxybenzyl)-2,4-dinitro-N-(prop-2-yn-yl)benzenesulfonamide

A

S-(2,4-Dinitrophenyl)-cystein
3165-76-2

S-(2,4-Dinitrophenyl)-cystein

B

N-(3-methoxybenzyl)prop-2-yn-1-amine

N-(3-methoxybenzyl)prop-2-yn-1-amine

C

sulfur dioxide
7446-09-5

sulfur dioxide

Conditions
ConditionsYield
In aq. phosphate buffer for 0.5h; pH=7.4;A n/a
B n/a
C 95%
N-(2-methoxyphenyl)-2,4-dinitro-N-(prop-2-yn-1-yl)benzenesulfonamide

N-(2-methoxyphenyl)-2,4-dinitro-N-(prop-2-yn-1-yl)benzenesulfonamide

A

S-(2,4-Dinitrophenyl)-cystein
3165-76-2

S-(2,4-Dinitrophenyl)-cystein

B

sulfur dioxide
7446-09-5

sulfur dioxide

C

2-methoxy-N-(prop-2-yn-1-yl)aniline
86967-08-0

2-methoxy-N-(prop-2-yn-1-yl)aniline

Conditions
ConditionsYield
In aq. phosphate buffer for 0.5h; pH=7.4;A n/a
B 91%
C n/a
1-phenyl-1,4-dihydro-2,3-benzoxathiin-3-oxide
51445-80-8

1-phenyl-1,4-dihydro-2,3-benzoxathiin-3-oxide

A

sulfur dioxide
7446-09-5

sulfur dioxide

B

[6-Methylene-cyclohexa-2,4-dien-(E)-ylidenemethyl]-benzene

[6-Methylene-cyclohexa-2,4-dien-(E)-ylidenemethyl]-benzene

Conditions
ConditionsYield
In aq. phosphate buffer; acetonitrile at 37℃; for 0.65h; pH=7.4; Kinetics; Inert atmosphere;A 89%
B n/a
sulfur dioxide
7446-09-5

sulfur dioxide

water
7732-18-5

water

iodine
7553-56-2

iodine

A

sulfuric acid
7664-93-9

sulfuric acid

B

hydrogen iodide
10034-85-2

hydrogen iodide

Conditions
ConditionsYield
0 - 25 °C; part of a Mg-S-I water splitting cycle;A 100%
B 100%
sulfur dioxide
7446-09-5

sulfur dioxide

water
7732-18-5

water

A

sulfuric acid
7664-93-9

sulfuric acid

B

sulfur
7704-34-9

sulfur

Conditions
ConditionsYield
at 170-180°C; in very dilute soln. complete decompn. in 2 h, incomplete decompn. in concd. solns.;A n/a
B 100%
byproducts: H2S4O6;
sodium thiosulfate In water 100°C;
sulfur dioxide
7446-09-5

sulfur dioxide

sulfur dioxide ion

sulfur dioxide ion

Conditions
ConditionsYield
other Radiation; by electron impact (70 eV);100%
other Radiation; by electron impact (70 eV);100%
Irradiation (UV/VIS);
sulfur dioxide
7446-09-5

sulfur dioxide

tributyltin methoxide
1067-52-3

tributyltin methoxide

Methyl-tributylzinnsulfit
17207-80-6

Methyl-tributylzinnsulfit

Conditions
ConditionsYield
exothermic;100%
In Petroleum ether 50 min;
sulfur dioxide
7446-09-5

sulfur dioxide

hydrogen
1333-74-0

hydrogen

A

disulfur
23550-45-0

disulfur

B

hydrogen sulfide
7783-06-4

hydrogen sulfide

Conditions
ConditionsYield
In neat (no solvent) byproducts: H2O; redn. of SO2 by H2 (1:2), SO2-conversion at 114°C practically 100%;;A 100%
B n/a
In neat (no solvent) byproducts: H2O; redn. of SO2 by H2 (1:2), SO2-conversion at 114°C practically 100%;;A 100%
B n/a
In neat (no solvent) byproducts: H2O; redn. of SO2 by H2, investigation of equilibrium constants;;
carbon monoxide
201230-82-2

carbon monoxide

sulfur dioxide
7446-09-5

sulfur dioxide

sulfur
7704-34-9

sulfur

Conditions
ConditionsYield
With catalyst: CeO2.Co3O4 284-465°C, metal oxide mixture catalysts activity: CuCo2O4;100%
With catalyst: CuCo2O4 284-465°C, metal oxide mixture catalysts activity: CuCo2O4;100%
With catalyst: LaCoO3 284-465°C, metal oxide mixture catalysts activity: CuCo2O4;100%
methane
34557-54-5

methane

sulfur dioxide
7446-09-5

sulfur dioxide

hydrogen sulfide
7783-06-4

hydrogen sulfide

Conditions
ConditionsYield
With catalyst: cobalt molybdate/SiO2 great excess of CH4; Co molybdate supported on SiO2; at 593-704°C and 1 atm;100%
With catalyst: V/Al2O3 20 vol% SO2 : 80 vol% CH4; 5 % V on γ-Al2O3; at 545°C and atm. pressure;95-100
calcium(II) sulfide
selenium
7782-49-2

selenium

arsenic pentafluoride
7784-36-3

arsenic pentafluoride

fluorosulfonylchloride
13637-84-8

fluorosulfonylchloride

sulfur dioxide
7446-09-5

sulfur dioxide

iodine
7553-56-2

iodine

(diselenium tetraiodine)(AsF6)2*SO2

(diselenium tetraiodine)(AsF6)2*SO2

Conditions
ConditionsYield
byproducts: AsF3; SO2 and AsF5 were condensed into Se and I2; after 16 h no insoluble material was observed; condensed SO2ClF into the soln.; react. time 3 h; slowly (ca.20 h) condension; cooling; crystn.; washing; removed volatile materials by evacuation; subjected to vac. for <0.2 h; elem. anal.;100%
byproducts: AsF3; SO2 and AsF5 were condensed onto Se and I2; after 16 h no insoluble material was observed; condensation of SO2ClF onto the soln.; react. time 7 h; slowly (ca.20 h) condensation of solvent; cooling; crystn.; washing; removal of volatile material by evacuation; elem. anal.;104 %
selenium
7782-49-2

selenium

arsenic pentafluoride
7784-36-3

arsenic pentafluoride

sulfur dioxide
7446-09-5

sulfur dioxide

iodine
7553-56-2

iodine

(diselenium tetraiodine)-(AsF6)2

(diselenium tetraiodine)-(AsF6)2

Conditions
ConditionsYield
AsF5 was condensed onto a mixture of Se and I2 in liq. SO2; react. time 4 h; slowly (ca.20 h) condensation of solvent; crystn.; after 16 h removal of volatile material by evacuation; elem. anal.; X-ray diffraction;100%
AsF5 was condensed onto a mixture of Se and I2 in liq. SO2; react. time 6 h; slowly (ca.20 h) condensation; crystn.; after 16 h removal of volatile materials by evacuation; elem. anal.; X-ray diffraction;106 %
dicarbonylbis{μ-bis(diphenylphosphino)methane-P,P'}-μ-sulfur dirhodium

dicarbonylbis{μ-bis(diphenylphosphino)methane-P,P'}-μ-sulfur dirhodium

sulfur dioxide
7446-09-5

sulfur dioxide

dicarbonylbis{μ-bis(diphenylphosphino)methane-P,P'}-μ-sulfur-μ-(sulfurdioxide)-dirhodium(I)
73971-84-3

dicarbonylbis{μ-bis(diphenylphosphino)methane-P,P'}-μ-sulfur-μ-(sulfurdioxide)-dirhodium(I)

Conditions
ConditionsYield
In dichloromethane (Ar), SO2 bubbled for 5 min through soln.; n-hexane added, dried for a short time in vacuum, elem. anal., MS;100%
(RhCO)(Mn(CO)3)(((C6H5)2P)2CH2)2
126925-92-6

(RhCO)(Mn(CO)3)(((C6H5)2P)2CH2)2

sulfur dioxide
7446-09-5

sulfur dioxide

bis{μ-bis(diphenylphosphino)methane-P,P'}-tricarbonyl{carbonylrhodium(0)}-μ-(sulfurdioxide)-mangan(0)
134904-78-2

bis{μ-bis(diphenylphosphino)methane-P,P'}-tricarbonyl{carbonylrhodium(0)}-μ-(sulfurdioxide)-mangan(0)

Conditions
ConditionsYield
In dichloromethane (Ar), SO2 bubbled for 5 min through soln.; solvent removed in vacuum, dried in vacuum, elem. anal., MS;100%
(RhClCO)(Mo(CO)3)(((C6H5)2P)2CH2)2
93555-55-6

(RhClCO)(Mo(CO)3)(((C6H5)2P)2CH2)2

sulfur dioxide
7446-09-5

sulfur dioxide

bis{μ-bis(diphenylphosphino)methane-P,P'}-μ-carbonyl-dicarbonyl{chlororhodium(I)}-μ-(sulfurdioxide)-molybdenum(0)
104299-53-8

bis{μ-bis(diphenylphosphino)methane-P,P'}-μ-carbonyl-dicarbonyl{chlororhodium(I)}-μ-(sulfurdioxide)-molybdenum(0)

Conditions
ConditionsYield
In dichloromethane (Ar), SO2 bubbled for 10 min through soln., stirred for 1 h under SO2-atmosphere; n-hexane added, dried in vacuum, elem. anal., MS;100%
[RhCl(O2)(2,6-(C(Me)=NiPr)2C5H3N)]
187034-69-1

[RhCl(O2)(2,6-(C(Me)=NiPr)2C5H3N)]

sulfur dioxide
7446-09-5

sulfur dioxide

[RhCl(O2SO2)(2,6-(C(Me)=NiPr)2C5H3N)]
187034-72-6

[RhCl(O2SO2)(2,6-(C(Me)=NiPr)2C5H3N)]

Conditions
ConditionsYield
In dichloromethane-d2 SO2-bubbling (room temp., 1 min); detd. by (1)H NMR spectroscopy;100%
molybdocene disulfide

molybdocene disulfide

sulfur dioxide
7446-09-5

sulfur dioxide

molybdocene dithiosulfate
445297-06-3

molybdocene dithiosulfate

Conditions
ConditionsYield
In ethanol; dichloromethane a soln. of complex in CH2Cl2 was mixed with ethanol and satd. with SO2 for 15 min at room temp., stirred for 1 h (N2); the solvent was removed under reduced pressure; elem. anal.;100%
[dicyclohexyl(2-methoxyethyl)phosphine-O,P](pentamethylcyclopentadienyl)(triethyl phosphite)ruthenium(II) tetraphenylborate
175876-10-5

[dicyclohexyl(2-methoxyethyl)phosphine-O,P](pentamethylcyclopentadienyl)(triethyl phosphite)ruthenium(II) tetraphenylborate

sulfur dioxide
7446-09-5

sulfur dioxide

[dicyclohexyl(2-methoxyethyl)phosphine-P](pentamethylcyclopentadienyl)(η(1)-sulphur dioxide)(triethyl phosphite)ruthenium(II)tetraphenylborate
175923-82-7

[dicyclohexyl(2-methoxyethyl)phosphine-P](pentamethylcyclopentadienyl)(η(1)-sulphur dioxide)(triethyl phosphite)ruthenium(II)tetraphenylborate

Conditions
ConditionsYield
In dichloromethane absence of air and moisture; bubbling SO2 for 5 min, stirring for 5 min; solvent removal (reduced pressure), washing (pentane), collection (filtration), drying (vac.); elem. anal.;100%
(RhClCO)(W(CO)3)(((C6H5)2P)2CH2)2
93555-57-8

(RhClCO)(W(CO)3)(((C6H5)2P)2CH2)2

sulfur dioxide
7446-09-5

sulfur dioxide

bis{μ-bis(diphenylphosphino)methane-P,P'}-μ-carbonyl-dicarbonyl{chlororhodium(I)}-μ-(sulfurdioxide)-tungsten(0)
134938-15-1

bis{μ-bis(diphenylphosphino)methane-P,P'}-μ-carbonyl-dicarbonyl{chlororhodium(I)}-μ-(sulfurdioxide)-tungsten(0)

Conditions
ConditionsYield
In dichloromethane (Ar), SO2 bubbled for 10 min through soln., stirred for 6 h under SO2-atmosphere; n-hexane added, dried in vacuum, elem. anal., MS;100%
(IrClCO)(Mo(CO)3)(((C6H5)2P)2CH2)2
93555-58-9

(IrClCO)(Mo(CO)3)(((C6H5)2P)2CH2)2

sulfur dioxide
7446-09-5

sulfur dioxide

bis{μ-bis(diphenylphosphino)methane-P,P'}-μ-carbonyl-dicarbonyl{chloroiridium(I)}-μ-(sulfurdioxide)-molybdenum(0)
134904-79-3

bis{μ-bis(diphenylphosphino)methane-P,P'}-μ-carbonyl-dicarbonyl{chloroiridium(I)}-μ-(sulfurdioxide)-molybdenum(0)

Conditions
ConditionsYield
In dichloromethane (Ar), SO2 bubbled for 10 min through soln., stirred for 1 h under SO2-atmosphere; n-hexane added, dried in vacuum, elem. anal., MS;100%
selenium
7782-49-2

selenium

silver tetrakis([2,2,2-trifluoro-1,1-bis(trifluoromethyl)ethyl]oxy)aluminate
428441-32-1

silver tetrakis([2,2,2-trifluoro-1,1-bis(trifluoromethyl)ethyl]oxy)aluminate

sulfur dioxide
7446-09-5

sulfur dioxide

(Ag(Se6)Ag)(2+)*2(Al(OC(CF3)3)4)(1-)=(Ag(Se6)Ag)(Al(OC(CF3)3)4)2

(Ag(Se6)Ag)(2+)*2(Al(OC(CF3)3)4)(1-)=(Ag(Se6)Ag)(Al(OC(CF3)3)4)2

Conditions
ConditionsYield
In sulfur dioxide liq. SO2 was condensed into mixt. Se and Ag(Al(OC(CF3)3)4) (6:1), stirred for several days; react. mixt. was filtered and cooled to 2°C for 2 days, solvent was removed in vacuo; elem. anal.;100%

7446-09-5Relevant articles and documents

Swamy, M. S. R.,Prasad, T. P.

, p. 107 - 114 (1981)

In Situ Modulation of A-Site Vacancies in LaMnO3.15 Perovskite for Surface Lattice Oxygen Activation and Boosted Redox Reactions

Chen, Jianjun,Ding, Yun,He, Minghua,Li, Junhua,Liu, Haiyan,Liu, Jun,Liu, Xiaoqing,Liu, Yuefeng,Mi, Jinxing,Shi, Jianqiang,Shi, Lin,Wang, Zisha,Wu, Zhong-Shuai,Xiong, Shangchao,Zhang, Qinfang

supporting information, p. 26747 - 26754 (2021/11/17)

Modulation of A-site defects is crucial to the redox reactions on ABO3 perovskites for both clean air application and electrochemical energy storage. Herein we report a scalable one-pot strategy for in situ regulation of La vacancies (VLa) in LaMnO3.15 by simply introducing urea in the traditional citrate process, and further reveal the fundamental relationship between VLa creation and surface lattice oxygen (Olatt) activation. The underlying mechanism is shortened Mn?O bonds, decreased orbital ordering, promoted MnO6 bending vibration and weakened Jahn–Teller distortion, ultimately realizing enhanced Mn-3d and O-2p orbital hybridization. The LaMnO3.15 with optimized VLa exhibits order of magnitude increase in toluene oxidation and ca. 0.05 V versus RHE (reversible hydrogen electrode) increase of half-wave potential in oxygen reduction reaction (ORR). The reported strategy can benefit the development of novel defect-meditated perovskites in both heterocatalysis and electrocatalysis.

Oxidation of Sulfur Dioxide in Sodium and Calcium Fluorides

Ivanova, M. S.,Savitskaya, Yu. V.,Tomskii, K. O.,Vishnetskaya, M. V.

, p. 513 - 517 (2021/08/23)

Abstract: It was established that the oxidation reactions of sulfur dioxide occur in aqueous solutions of sodium fluoride and in suspensions of calcium fluoride at room temperature and atmospheric pressure. It was found that the solutions of NaF and CaFs

Copper-Catalyzed Chloro-Arylsulfonylation of Styrene Derivatives via the Insertion of Sulfur Dioxide

Li, Yue,Shen, Lin,Zhou, Mi,Xiong, Baojian,Zhang, Xuemei,Lian, Zhong

supporting information, p. 5880 - 5884 (2021/08/01)

A copper-catalyzed four-component chloro-arylsulfonylation of styrene derivatives with aryldiazonium tetrafluoroborates, lithium chloride, and ex-situ generated sulfur dioxide (from SOgen) is presented. This sulfonylation features good functional group compatibility, mild reaction conditions, excellent regioselectivity, and good yields. The robustness and potential of this method have also been successfully demonstrated by a gram-scale reaction. Based on experimental study, a radical-involved mechanism is proposed for the transformation.

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