Potassium nonafluoro-1-butanesulfonate

CAS Number 29420-49-3

Chemistry Building Blocks, Fluorinated Building Blocks, Monomers, Non-Heterocyclic Building Blocks

Potassium nonafluoro-1-butanesulfonate MSDS

Potassium nonafluoro-1-butanesulfonate CAS 29420-49-3

A perfluorobutyl sulfonate salt

Directly applied as an additive in perovskite solar cells and lithium batteries, and serving as a precursor for ionic liquids

Overview
Related Products

Potassium nonafluoro-1-butanesulfonate (CAS number 29420-49-3) is a potassium salt of perfluorobutyl sulfonic acid. The sulfonate group can coordinate to metal centres, acting as an anchoring unit. Therefore, potassium nonafluoro-1-butanesulfonate is commonly used as an interface additive in lithium-ion batteries and perovskite solar cells. It forms a stable passivation layer on cathode material, LiNi_0.5Mn_1.5O₄ (LNMO), leading to minimum capacity decay after 1000 cycles at 1C and 5V. Potassium nonafluoro-1-butanesulfonate adjusts the energy matching of SnO₂ electron transport layer and the perovskite in perovskite solar cells. It assists in the passivation of the defects at the interface, resulting in an increase in powder conversion efficiency (PCE) from 20.6% to 23.2%.

Potassium nonafluoro-1-butanesulfonate is also employed in the synthesis of ionic liquids, in cooperation with pyrrolidinium salts. These ionic liquids modify the surface of the cathode materials in lithium batteries with enhanced stability and performance.

Enhance stability and performance

used as an additive

Fluorinated potassium butanesulfonate building block

for ionic liquid, perovskite solar cells, and battery research

Low Cost

Competitively priced, high quality product

High purity

>98% High purity

General Information

CAS Number	29420-49-3
Chemical Formula	C₄F₉KO₃S
Full Name	Potassium 1,1,2,2,3,3,4,4,4-nonafluoro-1-butanesulfonate
Molecular Weight	338.19 g/mol
Synonyms	Potassium nonaflate, Potassium nonafluorobutanesulfonate, Potassium perfluorobutanesulfonate, KPBS
Classification / Family	Fluorinated building blocks, Sulfonate anchoring units, Perfluoroalkyls, Ionic liquids, Batteries, Perovskite solar cells, Solid additives

Chemical Structure

Product Details

Purity	98%
Melting Point	T_m > 280 °C
Appearance	White powder

MSDS Documentation

Potassium nonafluoro-1-butanesulfonate MSDS Sheet

Literature and Reviews

One thousandth of quaternity slurry additive enables one thousand cycle of 5V LNMO cathode, J. Zhang et al., Energy Storage Mater., 64, 103060 (2024); DOI: 10.1016/j.ensm.2023.103060.
High-performance pyrrolidinium-based poly(ionic liquid) binders for Li-ion and Li-air batteries, S. Vauthier et al., Mater. Today Chem., 27, 101293 (2023); DOI: 10.1016/j.mtchem.2022.101293.
Multifunctional molecule of potassium nonafluoro-1-butanesulfonate for high-efficient perovskite solar cells, Z. Wu et al., J. Chem. Eng., 449, 137851 (2022); DOI: 10.1016/j.cej.2022.137851.
A long-lasting dual-function electrolyte additive for stable lithium metal batteries, D. Wang et al., Nano Energy, 79, 104889 (2020); DOI: 10.1016/j.nanoen.2020.104889.
N-methyl-N-alkylpyrrolidinium nonafluoro-1-butanesulfonate salts: ionic liquid properties and plastic crystal behaviour, S. Forsyth et al., Green Chem., 8, 256–261 (2006); DOI: 10.1039/B512902H.

Related Products

We stock a wide range of fluorinated building blocks available to purchase online. Please contact us if you cannot find what you are looking for.

2-Fluorobiphenyl

From £40

Pentafluorobenzoic acid

From £30

2,4,5-Trifluorophenylacetic acid

From £40

4-Fluoro-1,2-phenylenediamine

From £35

5-Fluorobenzoxazole-2-thiol

From £45

5-Bromo-3-fluoropyridine-2-carboxylic acid

From £55

7-Fluoro-4-hydroxycoumarin

From £50

2-Amino-5-chloro-3-fluoropyridine

From £40

5-Fluoro-2-methylbenzoic acid

From £45

5-Bromo-4-fluoro-2-methylaniline

From £60

3′-Bromo-4′-fluoroacetophenone

From £35

3-Fluoro-5-(trifluoromethyl)benzoic acid

From £30

5-Chloro-2-fluorobenzonitrile

From £40

2-Fluoro-6-methylbenzoic acid

From £33

4′-Fluoro-3′-nitroacetophenone

From £35

4-Fluoro-3-methylbenzoic acid

From £50

1,3,5-Tris(3-fluoro-4-formylphenyl)benzene

£80
From £40

5-Chloro-2-fluorobenzoic acid

From £50

2-Fluoro-5-methylbenzoic acid

From £50

trans-3,4-Difluorocinnamic acid

From £50

4-Fluoro-2-iodobenzoic acid

From £35

3-Fluoro-4-iodopyridine

From £50

2-Chloro-5-fluoronitrobenzene

From £45

4-Bromo-3-fluorobenzonitrile

From £50

3-Bromo-5-fluorophenol

From £33

4-Bromo-3-fluoroiodobenzene

From £35

5-Difluoromethoxy-2-mercaptobenzimidazole

From £65

6-Fluoro-4-hydroxy-2-(trifluoromethyl)quinoline

From £95

4-Bromo-6-fluoroquinoline

From £95

4-Amino-2-(trifluoromethyl)pyridine

From £50

1-(3-Fluorophenyl)-1H-pyrazole-4-carbaldehyde

From £70

Methyl 6-fluoropyridine-2-carboxylate

From £85

4-Hydroxy-2-(trifluoromethyl)benzoic acid

From £65

5-Bromo-2-fluoropyrimidine

From £60

3-Chloro-5-fluoroaniline

From £65

6-Fluoropyridine-2-carbonitrile

From £80

4-Fluoro-4′-methoxybenzophenone

From £90

2,4,6-Trifluorophenylacetic acid

From £90

2,3,5,6-Tetrafluoro-4-hydroxybenzoic acid

From £80

2-Fluoropyridine-3-carbonitrile

From £90

2-Bromo-5-fluorobenzonitrile

From £60

1-Bromo-2-chloro-4-fluorobenzene

From £70

2-Fluoro-4-(trifluoromethyl)benzoic acid

From £100

3-Fluoro-4-methoxybenzoic acid

From £90

4-Methoxy-3-(trifluoromethyl)aniline

From £90

4-Fluoro-2-methylbenzonitrile

From £90

3-Fluoro-4-(trifluoromethyl)benzoic acid

From £90

3,5-Difluoropyridine-2-carbonitrile

From £90

5-Cyano-2-fluoropyridine

From £90

2,6-Difluorocinnamic aldehyde

From £90

2-Fluoro-4-hydroxybenzoic acid

From £90

3-Chloro-2-fluorobenzoic acid

From £75

2-Fluoro-3-methoxybenzaldehyde

From £137

3-Fluorobenzoic hydrazide

From £100

2-Amino-5-fluorobenzonitrile

From £80

4-Fluoro-2-methylphenol

From £60

2,4,5-Trifluorobenzonitrile

From £80

4-Chloro-3-fluoroaniline

From £50

2-Fluoro-4-nitroaniline

From £70

3-Fluoro-2-methylbenzoic acid

From £90

2-Amino-6-fluorobenzonitrile

From £90

3-Fluoro-p-anisidine

From £90

3′-Fluoro-4′-methoxyacetophenone

Price £90

2-Bromo-4-fluorobenzonitrile

From £80

3-Fluoro-2-pyridinecarbonitrile

From £70

2-Amino-3-fluoropyridine

From £80

3-Fluoro-4-hydroxybenzaldehyde

From £80

α,α-Difluorophenylacetic acid

From £70

3,3-Difluoropiperidine hydrochloride

From £60

2,2-Difluorocyclopropanecarboxylic acid

From £90

4-Fluoro-β-nitrostyrene

From £90

2,6-Dichloro-5-fluoro-3-pyridinecarbonitrile

From £90

2-Fluoro-4-(trifluoromethyl)aniline

From £90

N-Boc-4,4-difluoro-L-proline

From £70

3,4,5-Trifluorobenzoic acid

From £90

2-Bromo-3′-fluoroacetophenone

From £116

4-Fluororesorcinol

From £70

3,4,5-Trifluoroaniline

From £55

4-Fluorobenzenesulfonamide

From £65

2-Fluoro-5-nitrobenzoic acid

From £65

1-Bis(4-fluorophenyl)methyl piperazine

From £80

3,5-Difluorobenzonitrile

From £65

6-Fluoronicotinic acid

From £76

2-Bromo-4-fluoropyridine

From £125

3-Fluoro-2-hydroxybenzaldehyde

From £110

2-Chloro-5-fluoropyrimidine

From £100

2-Bromo-6-fluorobenzaldehyde

From £100

2-Fluoro-5-nitrobenzonitrile

From £72

Bis(4-fluorophenyl)methanol

From £105

N-Boc-trans-4-fluoro-L-proline

From £76

(S)-(+)-3-Fluoropyrrolidine hydrochloride

From £80

Methyl pentafluorobenzoate

From £76

5-Fluorosalicylic acid

From £110

(R)-(−)-3-Fluoropyrrolidine hydrochloride

From £72

4-Bromo-2,6-difluoroaniline

From £76

2-Fluoroadenine

From £90

3,3-Difluoropyrrolidine hydrochloride

From £110

4-Fluoro-3-nitrobenzoic acid

From £66

2-Amino-4-fluorophenol

From £56

2,4-Difluorobenzonitrile

From £66

2,4-Difluoro-(1H-1,2,4-triazolyl)acetophenone

From £100

4,4′-Bis(trifluoromethyl)-2,2′-bipyridine

From £100

5-Bromo-2-fluoropyridine

From £105

1-(tert-Butoxycarbonyl)-3-fluoro-4-piperidone

From £90

6-Fluoro-3-(4-piperidinyl)-1,2-benzisoxazole hydrochloride

From £80

7-Chloro-1-cyclopropyl-6-fluoro-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylic acid

From £115

3-Fluoro-4-morpholinoaniline

From £100

Benzyl (3-Fluoro-4-morpholinophenyl)carbamate

From £100

5-Fluoroisatin

From £76

5-Fluorooxindole

From £200

5-(Trifluoromethoxy)isatin

From £115

6-Fluoroindole-2-carboxylic acid

From £105

6-Fluoroindole

From £80

5-Fluoroindole

From £100

7-Fluoroindole

From £170

3-(4-Fluorophenyl)-1-isopropylindole

From £100

4-Fluoroindole

From £100

4-(Trifluoromethyl)-1H-imidazole

From £165

1-[2-(Trifluoromethyl)phenyl]imidazole

From £175

3-(Trifluoromethyl)-2-pyridone

From £100

5-(Trifluoromethyl)-2-pyridone

From £100

2-(Trifluoromethyl)thioxanthen-9-one

Price £95

2-Furoyltrifluoroacetone

From £100

7-(Diethylamino)-4-(trifluoromethyl)coumarin

From £110

7-Hydroxy-4-(trifluoromethyl)coumarin

From £56

2-Fluoro-9H-carbazole

From £135

AB-TFMB

£90
From £90

p-6FDAP

£110
From £110

2,2-Bis(3-(3-aminobenzoylamino)-4-hydroxyphenyl)hexafluoropropane (m-6FDAP)

£130
From £130

2,2'-Bis(trifluoromethyl)-4,4'-diaminodiphenyl ether (6FODA)

£76
From £76

2,2-Bis[4-(4-aminophenoxy)phenyl]hexafluoropropane (4-BDAF)

£76
From £76

1,4-Bis(4-amino-2-trifluoromethylphenoxy)benzene (6FAPB)

£76
From £38

4,4'-(Hexafluoroisopropylidene)diphthalic anhydride (6FDA)

£90
From £90

2,2'-Bis(trifluoromethyl)benzidine (TFMB)

£76
From £76

2,2-Bis(3-amino-4-hydroxyphenyl)hexafluoropropane (6FAP)

£76
From £38

2-(2,4-Difluorophenyl)-5-fluoropyridine

From £105

2-(2,4-Difluorophenyl)-5-methylpyridine

From £130

4-Chloro-7-trifluoromethylquinoline-3-carboxylic acid ethyl ester

From £145

4-Bromo-8-fluoroquinoline

From £135

6-Chloro-8-fluoroquinoline

From £80

8-Fluoro-4-hydroxy-2-methylquinoline

From £95

(5S)-(−)-5-(Trifluoromethyl)-2-pyrrolidinone

From £145

2,4,6-Trifluoronitrobenzene

From £74

Ethyl (4-fluorobenzoyl)acetate

From £110

5-Bromo-3-fluorosalicylaldehyde

From £110

6-Fluoro-4-chromanone

From £120

2-(Difluoromethyl)benzimidazole

From £115

3,3-Difluoroazetidine hydrochloride

Price £170

4-(Trifluoromethyl)-2-pyridone

From £72

4-Fluoro-1H-indazole

From £72

3-(4-Methyl-1H-imidazol-1-yl)-5-(trifluoromethyl)aniline

From £115

5,5'-Bis(trifluoromethyl)-2,2'-bipyridine

From £210

5,5'-dibromo-3,3'-difluoro-2,2'-bithiophene

From £250

2-Bromo-6-fluoronaphthalene

From £130

FIC

From £220

HDOQx-DBrDF

From £520

MeHDOQx-DBrDF

From £520

2FIC

From £360

BDTT-F-Sn

From £500

DFBTA-2ThBr-HD

From £310

3,3'-Difluoro-5,5'-bis(trimethylstannyl)-2,2'-bithiophene

From £280

2-Ethylhexyl 4,6-dibromo-3-fluorothieno[3,4-b]thiophene-2-carboxylate

From £260

4,7-Dibromo-5,6-difluoro-2,1,3-benzothiadiazole

From £210

PCE11 Monomer

From £480