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7664-93-9

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7664-93-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 7664-93-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,6,6 and 4 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 7664-93:
(6*7)+(5*6)+(4*6)+(3*4)+(2*9)+(1*3)=129
129 % 10 = 9
So 7664-93-9 is a valid CAS Registry Number.
InChI:InChI=1/H2O4S/c1-5(2,3)4/h(H2,1,2,3,4)

7664-93-9SDS

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 Sulfuric acid

1.2 Other means of identification

Product number -
Other names Sulphuric acid

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:7664-93-9 SDS

7664-93-9Synthetic route

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;
carbon oxide sulfide
463-58-1

carbon oxide sulfide

dihydrogen peroxide
7722-84-1

dihydrogen peroxide

A

carbon dioxide
124-38-9

carbon dioxide

B

sulfuric acid
7664-93-9

sulfuric acid

C

water
7732-18-5

water

Conditions
ConditionsYield
With potassium sulfate; potassium hydrogensulfate; potassium peroxomonosulfate In water Kinetics; oxidation of OCS studied in round-bottom Pyrex bulbs, acid-water mixtures introduced into bulbs and degassed, bulb reactors filled with with a gas mixture slightly above 1 atm total pressure with a typical mixing ratio of OCS:Ar:He=40:60:700 Torr; gas chromy. and mass spectroscopy applied for determination of product content;A 100%
B n/a
C n/a
With sulfuric acid In water Kinetics; oxidation of OCS studied in round-bottom Pyrex bulbs, acid-water mixtures introduced into bulbs and degassed, bulb reactors filled with with a gas mixture slightly above 1 atm total pressure with a typical mixing ratio of OCS:Ar:He=40:60:700 Torr; gas chromy. and mass spectroscopy applied for determination of product content;A 100%
B n/a
C n/a
sulfur dioxide
7446-09-5

sulfur dioxide

oxygen
80937-33-3

oxygen

sulfuric acid
7664-93-9

sulfuric acid

Conditions
ConditionsYield
With sulfuric acid; ammonia absorption of dild. SO2 in aq. soln. of NH3, eliberation with H2SO4, O2 from water electrolysis, 3-layer contact bed, heat exchanger, 3 H2SO4 absorbers, coke filter, tail gas recirculation, 528-682°C;99.5%
With NH3; H2SO4; catalyst: V compd. absorption of dild. SO2 in aq. soln. of NH3, eliberation with H2SO4, O2 from water electrolysis, 3-layer contact bed, heat exchanger, 3 H2SO4 absorbers, coke filter, tail gas recirculation, 528-682°C;99.5%
ferric hydroxide In not given 125-130°C, Fe(OH)3 on pumice or asbestos;
sulfur
7704-34-9

sulfur

sulfuric acid
7664-93-9

sulfuric acid

Conditions
ConditionsYield
With air moist air introductions into four-stage contact furnace, 2-stage drum absorber, washing of tail gas in Venturi app.; 93-95 % acid concn.;99%
With air moist air introductions into four-stage contact furnace, 2-stage drum absorber, washing of tail gas in Venturi app.; 93-95 % acid concn.;99%
With catalyst: V compd. moist S roaster gas, absorption in concd. acid;
Marshall's acid
13445-49-3

Marshall's acid

tin(ll) chloride

tin(ll) chloride

A

sulfuric acid
7664-93-9

sulfuric acid

B

tin(IV) chloride
7646-78-8

tin(IV) chloride

Conditions
ConditionsYield
In hydrogenchloride room temp.; 10-15 min.;A n/a
B 99%
In hydrogenchloride room temp.; 10-15 min.;A n/a
B 99%
bromic acid
7789-31-3

bromic acid

A

sulfuric acid
7664-93-9

sulfuric acid

B

bromine
7726-95-6

bromine

Conditions
ConditionsYield
With sulphurous acid byproducts: H2O;A n/a
B 99%
With H2SO3 byproducts: H2O;A n/a
B 99%
sulfur dioxide
7446-09-5

sulfur dioxide

A

sulfuric acid
7664-93-9

sulfuric acid

B

sulfur
7704-34-9

sulfur

Conditions
ConditionsYield
In not given Electrolysis; Pt anode, graphite cathode, area of the electrodes 30 cm^2, 1 A, 20 min, 0.208 mg/l SO2 soln.;A 98.16%
B 70.87%
In not given Electrolysis; Pt anode, graphite cathode, area of the electrodes 30 cm^2, 1 A, 20 min, 0.420 mg/l SO2 soln.;A 98.52%
B 74.28%
In not given Electrolysis; Pt anode, graphite cathode, area of the electrodes 30 cm^2, 1 A, 20 min, 1.123 mg/l SO2 soln.;A 98.86%
B 74.2%
pyrite

pyrite

sulfuric acid
7664-93-9

sulfuric acid

Conditions
ConditionsYield
3-stage contact with heat exchangers, for pyrite roaster gas;98%
With air burning at 820°C in rotating furnace, elec. filter, washing, air addn., wet elec. filter, drying, heat exchanger, two-stage inner cooling, cooler, absorption, cooling;
With nitric acid formation of H2SO4 by reaction of HNO3 with pyrite; faster reaction at 100 °C than at higher temperature;;
With air; catalyst: V2O5 - K2O - SiO2 burning at 820°C in rotating furnace, elec. filter, washing, air addn., wet elec. filter, drying, heat exchanger, two-stage inner cooling, cooler, absorption, cooling;
sulfur dioxide
7446-09-5

sulfur dioxide

water
7732-18-5

water

sulfuric acid
7664-93-9

sulfuric acid

Conditions
ConditionsYield
With (CN)2 In water byproducts: HCN; with (CN)2 excess for 4-5 days at room temp.;94%
contact oven with intermediate heat exchangers, temp. regulation by fresh air addn., H2O to inlet gas, SO2 recycling;80%
condensation after contact furnace at 175. degree.C; 66.3 % acid concn.;46.7%
sodium sulfate
7757-82-6

sodium sulfate

A

sulfuric acid
7664-93-9

sulfuric acid

B

sodium hydroxide
1310-73-2

sodium hydroxide

Conditions
ConditionsYield
In water Electrolysis; formation of PbSO4 on Pb-anode; electrolysis of PbSO4;A 91%
B 91%
With H2O Electrolysis;
In water Electrolysis;
sulphurous acid
7782-99-2

sulphurous acid

chloric acid
7790-93-4

chloric acid

A

sulfuric acid
7664-93-9

sulfuric acid

B

chlorine dioxide
10049-04-4, 25052-55-5

chlorine dioxide

C

water
7732-18-5

water

Conditions
ConditionsYield
With air; sulfur dioxide In sulfuric acid byproducts: HClO, HCl, Cl2; Holst-process;;A n/a
B 90%
C n/a
chlorosulfonic acid
7790-94-5

chlorosulfonic acid

A

sulfuryl dichloride
7791-25-5

sulfuryl dichloride

B

sulfuric acid
7664-93-9

sulfuric acid

Conditions
ConditionsYield
uranyl chloride In neat (no solvent) equilibrium on thermal decompn.;; distillation;;A 90%
B n/a
mercury In neat (no solvent) equilibrium on thermal decompn.;; distillation;;A 90%
B n/a
bismuth(III) chloride In neat (no solvent) equilibrium on thermal decompn.;; distillation;;A 90%
B n/a
vanadyl(IV) sulphate pentahydrate

vanadyl(IV) sulphate pentahydrate

5-Chloro-1,10-phenanthroline
4199-89-7

5-Chloro-1,10-phenanthroline

bromanilic acid
4370-59-6

bromanilic acid

(VO)2(Br2C6O4)(C12H7ClN2)2(2+)*SO4(2-)=[(VO)2(Br2C6O4)(C12H7ClN2)2](SO4)
230953-51-2

(VO)2(Br2C6O4)(C12H7ClN2)2(2+)*SO4(2-)=[(VO)2(Br2C6O4)(C12H7ClN2)2](SO4)

B

sulfuric acid
7664-93-9

sulfuric acid

Conditions
ConditionsYield
In methanol dropwise addn. of soln. of VOSO4 to soln of bromanilic acid, addn. of soln. of N-ligand (stirring, room temp.), refluxing (8 h; crystn.); filtration, washing (MeOH, Et2O), drying (vac., over P2O5), recrystn. (DMF/EtOH); elem. anal.;A 88%
B n/a
chlorosulfonic acid
7790-94-5

chlorosulfonic acid

A

pyrosulfuryl chloride
7791-27-7

pyrosulfuryl chloride

B

sulfuric acid
7664-93-9

sulfuric acid

Conditions
ConditionsYield
Stage #1: chlorosulfonic acid With Acetanilid at 26 - 45℃; for 9.2h;
Stage #2: With thionyl chloride at 55℃; for 6.4h; Temperature; Further stages;
A 87%
B n/a
vanadyl(IV) sulphate pentahydrate

vanadyl(IV) sulphate pentahydrate

2.9-dimethyl-1,10-phenanthroline
484-11-7

2.9-dimethyl-1,10-phenanthroline

bromanilic acid
4370-59-6

bromanilic acid

(VO)2(Br2C6O4)((CH3)2C12H6N2)2(2+)*SO4(2-)=[(VO)2(Br2C6O4)((CH3)2C12H6N2)2](SO4)
230953-49-8

(VO)2(Br2C6O4)((CH3)2C12H6N2)2(2+)*SO4(2-)=[(VO)2(Br2C6O4)((CH3)2C12H6N2)2](SO4)

B

sulfuric acid
7664-93-9

sulfuric acid

Conditions
ConditionsYield
In methanol dropwise addn. of soln. of VOSO4 to soln of bromanilic acid, addn. of soln. of N-ligand (stirring, room temp.), refluxing (8 h; crystn.); filtration, washing (MeOH, Et2O), drying (vac., over P2O5), recrystn. (DMF/EtOH); elem. anal.;A 85%
B n/a
1,10-Phenanthroline
66-71-7

1,10-Phenanthroline

vanadyl(IV) sulphate pentahydrate

vanadyl(IV) sulphate pentahydrate

bromanilic acid
4370-59-6

bromanilic acid

(VO)2(Br2C6O4)(C12H8N2)2(2+)*SO4(2-)=[(VO)2(Br2C6O4)(C12H8N2)2](SO4)
230953-47-6

(VO)2(Br2C6O4)(C12H8N2)2(2+)*SO4(2-)=[(VO)2(Br2C6O4)(C12H8N2)2](SO4)

B

sulfuric acid
7664-93-9

sulfuric acid

Conditions
ConditionsYield
In methanol dropwise addn. of soln. of VOSO4 to soln of bromanilic acid, addn. of soln. of N-ligand (stirring, room temp.), refluxing (8 h; crystn.); filtration, washing (MeOH, Et2O), drying (vac., over P2O5), recrystn. (DMF/EtOH); elem. anal.;A 81%
B n/a
aminosulfonic acid
5329-14-6

aminosulfonic acid

A

sulfuric acid
7664-93-9

sulfuric acid

B

nitrogen
7727-37-9

nitrogen

C

sodium chloride
7647-14-5

sodium chloride

Conditions
ConditionsYield
With chlorine In water introduction of chlorine into alkaline soln.; intermediates (NaSO3NCl2/NaSO3NHCl) decompose after short time in this soln.;;A n/a
B 79.65%
C n/a
With Cl2 In water introduction of chlorine into alkaline soln.; intermediates (NaSO3NCl2/NaSO3NHCl) decompose after short time in this soln.;;A n/a
B 79.65%
C n/a
[2,2]bipyridinyl
366-18-7

[2,2]bipyridinyl

vanadyl(IV) sulphate pentahydrate

vanadyl(IV) sulphate pentahydrate

bromanilic acid
4370-59-6

bromanilic acid

(VO)2(Br2C6O4)(NC5H4C5H4N)2(2+)*SO4(2-)=[(VO)2(Br2C6O4)(NC5H4C5H4N)2](SO4)
230953-45-4

(VO)2(Br2C6O4)(NC5H4C5H4N)2(2+)*SO4(2-)=[(VO)2(Br2C6O4)(NC5H4C5H4N)2](SO4)

B

sulfuric acid
7664-93-9

sulfuric acid

Conditions
ConditionsYield
In methanol dropwise addn. of soln. of VOSO4 to soln of bromanilic acid, addn. of soln. of N-ligand (stirring, room temp.), refluxing (8 h; crystn.); filtration, washing (MeOH, Et2O), drying (vac., over P2O5), recrystn. (DMF/EtOH); elem. anal.;A 72%
B n/a
trisulfimide
13954-94-4

trisulfimide

A

ammonium bisulfate
7803-63-6

ammonium bisulfate

B

sulfuric acid
7664-93-9

sulfuric acid

C

SULFAMIDE
7803-58-9

SULFAMIDE

Conditions
ConditionsYield
With water heat of evapn., 2 h, 2 M HCl;A n/a
B 67%
C n/a
With H2O heat of evapn., 2 h, 2 M HCl;A n/a
B 67%
C n/a
trisulfimide
13954-94-4

trisulfimide

A

sulfuric acid
7664-93-9

sulfuric acid

B

aminosulfonic acid
5329-14-6

aminosulfonic acid

C

SULFAMIDE
7803-58-9

SULFAMIDE

Conditions
ConditionsYield
With water in the cold, 48 h, 2 M HCl;A 33%
B n/a
C n/a
With H2O in the cold, 48 h, 2 M HCl;A 33%
B n/a
C n/a
In water decompn. in aq. soln.; 0 and 22°C discussed; presece of acid discussed;;
dithionic acid
14970-71-9

dithionic acid

A

sulfuric acid
7664-93-9

sulfuric acid

B

sulfur dioxide
7446-09-5

sulfur dioxide

Conditions
ConditionsYield
In water 0.2362 mM/g decompn. 46.8°C, 245 h.;A 19.96%
B n/a
In water 0.2401 mM/g decompn. 25.3°C, 945.25 h.;A 2.96%
B n/a
In water Kinetics;
water
7732-18-5

water

sulfur
7704-34-9

sulfur

sulfuric acid
7664-93-9

sulfuric acid

Conditions
ConditionsYield
condensation of humidified S burner gas;
absorption of moist gas to H2SO4;
In water in sealed tube;at 150°C;under 20 atm O2;;0.06%
4-bromo-5-methyl-2-phenyl-2H-pyrazole-3-sulfonic acid

4-bromo-5-methyl-2-phenyl-2H-pyrazole-3-sulfonic acid

bromine
7726-95-6

bromine

sulfuric acid
7664-93-9

sulfuric acid

bromine
7726-95-6

bromine

5,7,5',7'-tetrabromo-3,3'-dioxo-1,3,1',3'-tetrahydro-[2,2']biindolyl-2,2'-disulfonic acid

5,7,5',7'-tetrabromo-3,3'-dioxo-1,3,1',3'-tetrahydro-[2,2']biindolyl-2,2'-disulfonic acid

sulfuric acid
7664-93-9

sulfuric acid

trichloroisocyanuric acid
87-90-1

trichloroisocyanuric acid

sulphurous acid
7782-99-2

sulphurous acid

sulfuric acid
7664-93-9

sulfuric acid

bismuth
7440-69-9

bismuth

aqueous H2 O2

aqueous H2 O2

sulfuric acid
7664-93-9

sulfuric acid

pyrographite
7440-44-0

pyrographite

2-butyl-5-hydroxymethyl-1H-imidazole
68283-19-2

2-butyl-5-hydroxymethyl-1H-imidazole

platinum
7440-06-4

platinum

2-butyl-1H-imidazole-5-carboxaldehyde
68282-49-5

2-butyl-1H-imidazole-5-carboxaldehyde

Conditions
ConditionsYield
With sodium hydroxide In water100%
With sodium hydroxide In water98.2%
With sodium hydroxide In methanol; water94.5%
7-Chloro-4-hydroxy-2-(4-carboxyphenyl)-1,2,5,10-tetrahydropyridazino [4,5-b]quinoline-1,10-dione
170142-44-6

7-Chloro-4-hydroxy-2-(4-carboxyphenyl)-1,2,5,10-tetrahydropyridazino [4,5-b]quinoline-1,10-dione

sulfuric acid
7664-93-9

sulfuric acid

7-Chloro-4-hydroxy-2-(4-carboxymethylphenyl)-1,2,5,10-tetrahydropyridazino [4,5-b]quinoline-1,10-dione

7-Chloro-4-hydroxy-2-(4-carboxymethylphenyl)-1,2,5,10-tetrahydropyridazino [4,5-b]quinoline-1,10-dione

Conditions
ConditionsYield
In methanol100%
sulfuric acid
7664-93-9

sulfuric acid

cadmium(II) sulphide

cadmium(II) sulphide

cadmium sulfate

cadmium sulfate

Conditions
ConditionsYield
In hydrogenchloride; sulfuric acid dissolving CdS in HCl, evapn. to dryness, dissoln. in dild. H2SO4, evapn. with a drop of concd. HNO3;100%
In hydrogenchloride; sulfuric acid aq. H2SO4; dissolving CdS in HCl, evapn. to dryness, dissoln. in dild. H2SO4, evapn. with a drop of concd. HNO3;100%
sulfuric acid
7664-93-9

sulfuric acid

hydrogen iodide
10034-85-2

hydrogen iodide

magnesium oxide

magnesium oxide

A

magnesium sulfate
7487-88-9

magnesium sulfate

B

magnesium iodide

magnesium iodide

Conditions
ConditionsYield
70 °C; 1-2. step of Mg-S-I water splitting cycle;A 100%
B 100%
[Fe(μ-S2(CH2)3)(CN)(CO)4(PMe3)](1-)
392334-61-1, 371241-08-6, 392333-87-8, 1226500-22-6

[Fe(μ-S2(CH2)3)(CN)(CO)4(PMe3)](1-)

sulfuric acid
7664-93-9

sulfuric acid

hydrogen
1333-74-0

hydrogen

Conditions
ConditionsYield
In water Electrolysis; electrolysis of soln. of Fe2(CO)4(CN)(PMe3)S2(CH2)3 with 50 equiv. H2SO4at -1.2 V for 15 min; GC analysis;100%
barium sulfate

barium sulfate

sulfuric acid
7664-93-9

sulfuric acid

Ba(2+)*SO4(2-)*2H2SO4*H2O=BaSO4*2H2SO4*H2O

Ba(2+)*SO4(2-)*2H2SO4*H2O=BaSO4*2H2SO4*H2O

Conditions
ConditionsYield
With water In sulfuric acid digesting; concn. of H2SO4 in aq. H2SO4 >93%; pptn. by adjusting H2SO4 concn. to 84.15%-93% with water;100%
With H2O In sulfuric acid aq. H2SO4; digesting; concn. of H2SO4 in aq. H2SO4 >93%; pptn. by adjusting H2SO4 concn. to 84.15%-93% with water;100%
With water In sulfuric acid uptake of water from the air;
0.34K(1+)*0.7H2O*NbS2(034-)=K0.34(H2O)0.7NbS2

0.34K(1+)*0.7H2O*NbS2(034-)=K0.34(H2O)0.7NbS2

sulfuric acid
7664-93-9

sulfuric acid

0.34H3O(1+)*NbS2(034-)=(H3O)0.34NbS2

0.34H3O(1+)*NbS2(034-)=(H3O)0.34NbS2

Conditions
ConditionsYield
In sulfuric acid aq. H2SO4; Nb-contg. compd. was treated in aq. H2SO4 for 48 h;100%
4-(3-methylimidazolium)butanesulfonate

4-(3-methylimidazolium)butanesulfonate

sulfuric acid
7664-93-9

sulfuric acid

1-methyl-3-(4-sulfobutyl)-1H-imidazol-3-ium hydrogensulfate
827320-59-2

1-methyl-3-(4-sulfobutyl)-1H-imidazol-3-ium hydrogensulfate

Conditions
ConditionsYield
In toluene at 80℃; for 24h;100%
4-(pyridinium-1-yl)butane-1-sulfonate
21876-43-7

4-(pyridinium-1-yl)butane-1-sulfonate

sulfuric acid
7664-93-9

sulfuric acid

N-(4-sulphonic acid)butylpyridinium hydrogen sulphate
827320-61-6

N-(4-sulphonic acid)butylpyridinium hydrogen sulphate

Conditions
ConditionsYield
In toluene at 80℃; for 24h;100%
ammonium sulfate

ammonium sulfate

sulfuric acid
7664-93-9

sulfuric acid

sulfur trioxide
7446-11-9

sulfur trioxide

boric acid
11113-50-1

boric acid

3H3N*3H(1+)*B(SO4)3(3-)

3H3N*3H(1+)*B(SO4)3(3-)

Conditions
ConditionsYield
at 300℃; for 3h;100%
strontium(II) carbonate
1633-05-2

strontium(II) carbonate

sulfuric acid
7664-93-9

sulfuric acid

sulfur trioxide
7446-11-9

sulfur trioxide

boric acid
11113-50-1

boric acid

Sr(2+)*2{B(SO4)2}(1-)=Sr{B(SO4)2}2

Sr(2+)*2{B(SO4)2}(1-)=Sr{B(SO4)2}2

Conditions
ConditionsYield
at 180℃; for 24h;100%
bismuth
7440-69-9

bismuth

sulfuric acid
7664-93-9

sulfuric acid

bismuth(III) sulfate

bismuth(III) sulfate

Conditions
ConditionsYield
In further solvent(s) H2SO4 was added to Bi in HNO3 with stirring and heating; more H2SO4 wasadded and suspn. was heated for 40 h; heated in a muffle furnace at 648K; elem. anal.;99.8%
In sulfuric acid byproducts: SO2; by dissolving in boiling concd. H2SO4;;
In sulfuric acid byproducts: SO2; very weak reaction with diluted H2SO4.;;
In nitric acid Bi dissolved in HNO3 and treated with H2SO4, heated for several hours at 380 °C;;
2-(bromomethyl)-3-methylbutanoic acid
24766-14-1

2-(bromomethyl)-3-methylbutanoic acid

sulfuric acid
7664-93-9

sulfuric acid

isobutene
115-11-7

isobutene

2-Bromomethyl-3-methyl-butyric acid tert-butyl ester
224178-55-6

2-Bromomethyl-3-methyl-butyric acid tert-butyl ester

Conditions
ConditionsYield
With sodium hydrogencarbonate In dichloromethane99%
2,4,6-trimethyl-pyridine
108-75-8

2,4,6-trimethyl-pyridine

N-methylcyclohexylamine
100-60-7

N-methylcyclohexylamine

sulfuric acid
7664-93-9

sulfuric acid

tetrabutylammomium bromide
1643-19-2

tetrabutylammomium bromide

N-Isobutenyloxycarbonyl-N-methylcyclohexylamine

N-Isobutenyloxycarbonyl-N-methylcyclohexylamine

Conditions
ConditionsYield
In 1,1,2,2-tetrachloroethylene99%
N-nitroso-N-cyclohexylhydroxylamine potassium salt
27697-50-3

N-nitroso-N-cyclohexylhydroxylamine potassium salt

sulfuric acid
7664-93-9

sulfuric acid

N-nitroso-N-cyclohexylhydroxylamine aluminum salt

N-nitroso-N-cyclohexylhydroxylamine aluminum salt

Conditions
ConditionsYield
In water; toluene99%
molybdenum (II) chloride

molybdenum (II) chloride

sulfuric acid
7664-93-9

sulfuric acid

Mo6Cl8(4+)*2SO4(2-)=[Mo6Cl8](SO4)2

Mo6Cl8(4+)*2SO4(2-)=[Mo6Cl8](SO4)2

Conditions
ConditionsYield
In methanol byproducts: HCl; concd. H2SO4 is added to a soln. of the cluster in MeOH, HCl is evolvedand soln. is warmed up; soln. is heated to remove HCl and concd., soln. is diluted with MeOH, ppt.is sepd., washed and dried over P2O5, elem. anal.;99%
cis-dichloro(ethylenediamine)palladium(II)
15020-99-2

cis-dichloro(ethylenediamine)palladium(II)

sulfuric acid
7664-93-9

sulfuric acid

thiourea
17356-08-0

thiourea

(Pd(Thio)4SO4)

(Pd(Thio)4SO4)

Conditions
ConditionsYield
With acetic acid In water soln. PdEnCl2 in water was treated under heating in water bath with saturated aq. thiourea acidified with acetic acid, in 30 min 2 M H2SO4 was added; ppt. was filtered, washed with diluted H2SO4 and water, and dried;99%
Pt2(6+)*2O2(2-)*2OH(1-)*32K(1+)*32HSO4(1-)=[Pt2(O2)2(OH)2]*32KHSO4

Pt2(6+)*2O2(2-)*2OH(1-)*32K(1+)*32HSO4(1-)=[Pt2(O2)2(OH)2]*32KHSO4

sulfuric acid
7664-93-9

sulfuric acid

2K(1+)*Pt2(6+)*4SO4(2-)*2H2O=K2[Pt2(SO4)4(H2O)2]

2K(1+)*Pt2(6+)*4SO4(2-)*2H2O=K2[Pt2(SO4)4(H2O)2]

Conditions
ConditionsYield
In sulfuric acid aq. H2SO4; room temp.;99%
Pt2(6+)*2O2(2-)*2OH(1-)*20K(1+)*20HSO4(1-)=[Pt2(O2)2(OH)2]*20KHSO4

Pt2(6+)*2O2(2-)*2OH(1-)*20K(1+)*20HSO4(1-)=[Pt2(O2)2(OH)2]*20KHSO4

sulfuric acid
7664-93-9

sulfuric acid

2K(1+)*Pt2(6+)*4SO4(2-)*2H2O=K2[Pt2(SO4)4(H2O)2]

2K(1+)*Pt2(6+)*4SO4(2-)*2H2O=K2[Pt2(SO4)4(H2O)2]

Conditions
ConditionsYield
In sulfuric acid aq. H2SO4; room temp.;99%
Pt2(6+)*2O2(2-)*2OH(1-)*24K(1+)*24HSO4(1-)=[Pt2(O2)2(OH)2]*24KHSO4

Pt2(6+)*2O2(2-)*2OH(1-)*24K(1+)*24HSO4(1-)=[Pt2(O2)2(OH)2]*24KHSO4

sulfuric acid
7664-93-9

sulfuric acid

2K(1+)*Pt2(6+)*4SO4(2-)*2H2O=K2[Pt2(SO4)4(H2O)2]

2K(1+)*Pt2(6+)*4SO4(2-)*2H2O=K2[Pt2(SO4)4(H2O)2]

Conditions
ConditionsYield
In sulfuric acid aq. H2SO4; room temp.;99%
Pt2(6+)*2O2(2-)*2OH(1-)*28K(1+)*28HSO4(1-)=[Pt2(O2)2(OH)2]*28KHSO4

Pt2(6+)*2O2(2-)*2OH(1-)*28K(1+)*28HSO4(1-)=[Pt2(O2)2(OH)2]*28KHSO4

sulfuric acid
7664-93-9

sulfuric acid

2K(1+)*Pt2(6+)*4SO4(2-)*2H2O=K2[Pt2(SO4)4(H2O)2]

2K(1+)*Pt2(6+)*4SO4(2-)*2H2O=K2[Pt2(SO4)4(H2O)2]

Conditions
ConditionsYield
In sulfuric acid aq. H2SO4; room temp.;99%
Pt2(6+)*2O2(2-)*2OH(1-)*10K(1+)*10HSO4(1-)=[Pt2(O2)2(OH)2]*10KHSO4

Pt2(6+)*2O2(2-)*2OH(1-)*10K(1+)*10HSO4(1-)=[Pt2(O2)2(OH)2]*10KHSO4

sulfuric acid
7664-93-9

sulfuric acid

2K(1+)*Pt2(6+)*4SO4(2-)*2H2O=K2[Pt2(SO4)4(H2O)2]

2K(1+)*Pt2(6+)*4SO4(2-)*2H2O=K2[Pt2(SO4)4(H2O)2]

Conditions
ConditionsYield
In sulfuric acid aq. H2SO4; room temp.;99%

7664-93-9Relevant articles and documents

Hoenig, M.

, (1885)

Hughes, Martin N.,Lusty, James R.

, (1977)

Luckow, C.

, p. 53 - 57 (1893)

Cornog, J.,Henderson, W. E.

, p. 1978 - 1980 (1924)

Highly efficient photoinitiation in the cerium(III)-catalyzed aqueous autoxidation of sulfur(IV). An example of comprehensive evaluation of photoinduced chain reactions

Kerezsi, Ildiko,Lente, Gabor,Fabian, Istvan

, p. 4785 - 4793 (2005)

The photoinitiated and cerium(III)-catalyzed aqueous reaction between sulfite ion and oxygen has been studied in a diode-array spectrophotometer using the same light beam for excitation and detection. Cerium(III) is identified as the photoactive absorbing species, and the production of cerium(IV) initiates a radical chain reaction. To interpret all the experimental findings, a simple scheme is proposed, in which the additional chain carriers are sulfite ion radical (SO3-.), sulfate ion radical (SO4 -.), and peroxomonosulfate ion radical (SO5-.). The overall rate of oxidation is proportional to the square root of the light intensity per unit volume, which is readily interpreted by the second-order termination reaction of the proposed scheme. It is also shown that the reaction proceeds for an extended period of time in the dark following illumination, and a quantitative analysis is presented for this phase as well. The postulated model predicts that cerium(III) should have a cocatalytic or synergistic effect on the autoxidation of sulfite ion in the presence of other catalysts. This prediction was confirmed in the iron(III)-sulfite ion-oxygen system. The experimental method and the mathematical treatment used might be applicable to a wide range of photoinduced chain reactions.

On synthesis, structure, and thermal stability of mercury and lead sulfates and oxide sulfates

Ahmed,Fjellv?g,Kjekshus

, p. 113 - 121 (2002)

Reactions between HgO, PbO, or PbO2 and 2.5-95 wt.% H2SO4 are studied at temperatures up to the boiling point of the acid. Depending on the oxide reactant, the H2SO4 concentration, and synthesis tempe

Lichty, D. M.

, p. 1834 - 1846 (1908)

Marchlewski, L.

, p. 403 - 411 (1893)

Toennies, G.

, p. 552 - 555 (1937)

Watt, G. W.,Achorn, S. L.,Marley, J. L.

, p. 3341 - 3343 (1950)

Kinetics and Mechanism of the Oxidation of Aquated Sulfur Dioxide by Hydrogen Peroxide at Low pH

McArdie, James V.,Hoffmann, Michael R.

, p. 5425 - 5429 (1983)

A stopped-flow kinetic study of the oxidation of sulfur dioxide by hydrogen peroxide was performed over the pH range 0.0-4.5.A rate expression of the following form was verified experimentally: d/dt = k1Ka1(k2+> + k3)/-1 + k2+> + k3)(Ka1 + +>)>.The following kinetic parameters at 15 deg C were determined: k1 = (2.6 +/- 0.5)*106 M-1 s-1, k2/k-1 = 16 +/- 4 M-1, k2/k3 = (5 +/- 1)*102 (HA = acetic acid), ΔH(excit.)1 = 37 +/- 2 kJ mol-1, and ΔS(excit.)1 = 4 +/- 4 J K-1 mol-1.The reaction proceeds via a nucleophilic displacement of HSO3-1 by H2O2 to which undergoes sulfurous acid intermediate which undergoes acid-catalyzed rearrangement to form product: SO2*H2O HSO3- + H+(Ka1), H2O2 + HSO3- HOOSO2- (k1, k-1), HOOSO2- + H+ -> H+ + HSO4- (k2), HOOSO2- + HA -> HA + HSO4- (k3).Application of the above rate expression to reactions occuring in hydrometeors is discussed.

Hattox, E. M.,De Vries, T.

, p. 2126 (1936)

Fajans, K.

, p. 357 - 375 (1927)

Selected-control hydrothermal synthesis of γ-MnO2 3D nanostructures

Wu, Changzheng,Xie, Yi,Wang, Dong,Yang, Jun,Li, Tanwei

, p. 13583 - 13587 (2003)

Highly uniform γ-MnO2 3D urchinlike and sisallike nanostructures have been successfully prepared by a common hydrothermal method based on the reaction between MnSO4 and KBrO3. Reaction temperature and the additives of the polymers play an important role in influencing the morphologies of the as-obtained products. These urchinlike and sisallike nanostructures, which own the highly specific area on the surface of the particles may provide more possibility to give an ideal host material for the insertion and extraction of lithium ions, to realize region-dependent surface reactivity, and to act as molecular sieves.

-

Jumakaeva, B. S.,Golodov, V. A.

, p. 303 - 308 (1986)

-

Methods for producing a methanol precursor, methanol, and a methyl ester from methane in high purities

-

Page/Page column 11; 12, (2021/06/02)

A method for producing a methanol precursor, methyl trifluoroacetate, having high-purity includes the steps of (a) preparing methyl bisulfate by mixing a catalyst with an acid solution comprising a sulfur-containing acid to provide a first mixture and supplying methane gas to the first mixture to prepare the methyl bisulfate; and (b) preparing methyl trifluoroacetate (CF3CO2CH3) by adding trifluoroacetic acid (CF3CO2H) to the first mixture including the methyl bisulfate to provide a second mixture and distilling the second mixture under heating to prepare, separate and purify the methyl trifluoroacetate (CF3CO2CH3). Methanol may be produced by adding water to the methyl trifluoroacetate (CF3CO2CH3). A methyl ester represented by Formula 2 below may be produced by adding a carboxylic acid represented by Formula 1 below to the methyl trifluoroacetate (CF3CO2CH3): R1CO2H??(1),where R1 is selected from C1-C10 alkyl groups, R1CO2CH3??(2),where R1 is as defined in Formula 1.

Para-ester synthesis process for recycling hydrogen chloride

-

Paragraph 0086; 0092-0106; 0112-0126; 0132-0146; 0152-0166, (2020/05/01)

The invention discloses a para-ester synthesis process capable of recycling hydrogen chloride, which is characterized by comprising the following steps: (1) preparing chlorosulfonic acid; absorbing the hydrogen chloride gas generated in the chlorosulfonation link through an original HCl absorption tower, and resolving to generate pure hydrogen chloride gas; reacting the hydrogen chloride gas withpure sulfur trioxide gas in a primary reaction tower to obtain gaseous chlorosulfonic acid; condensing the gaseous chlorosulfonic acid and entering in a secondary reaction tower, and fully reacting aside reaction product in the primary reaction tower with excessive sulfur trioxide and hydrogen chloride to further generate chlorosulfonic acid; (2) preparing para-ester; preparing chlorosulfonated substances in a sulfonation reaction kettle; diluting and carrying out suction filtration, and then carrying out a reduction reaction, a condensation reaction and an esterification reaction to preparethe para-ester. The hydrogen chloride generated in the chlorosulfonation link is recovered and reacts with sulfur trioxide gas to prepare chlorosulfonic acid, the chlorosulfonic acid serves as a raw material in the chlorosulfonation link, the para-ester is further prepared, and cyclic utilization is achieved.