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200913

Sigma-Aldrich

Potassium hexafluorophosphate

≥99%

Synonym(s):

Monopotassium hexafluorophosphate

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About This Item

Linear Formula:
KPF6
CAS Number:
17084-13-8
Molecular Weight:
184.06
EC Number:
241-143-0
MDL number:
MFCD00011412
UNSPSC Code:
12352302
PubChem Substance ID:
24851982
NACRES:
NA.23

Quality Level

200

assay

≥99%

form

solid

technique(s)

ion chromatography: suitable

mp

575 °C (lit.)

density

2.75 g/mL at 25 °C (lit.)

SMILES string

[K+].F[P-](F)(F)(F)(F)F

InChI

1S/F6P.K/c1-7(2,3,4,5)6;/q-1;+1

InChI key

YZDGRYDIGCWVND-UHFFFAOYSA-N

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Application

Potassium hexafluorophosphate can be used as an electrolyte additive to improve the:
  • Electrochemical performance of an anode-free lithium metal battery.
  • Cycling stability and Li Coulombic efficiency of lithium-sulfur(Li–S) batteries.
It can also be used as interface modification material to passivate interface defects in perovskite solar cells.

pictograms

Corrosion
GHS05

signalword

Danger

hcodes

H314

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1B

Storage Class

8A - Combustible corrosive hazardous materials

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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Certificates of Analysis (COA)

Lot/Batch Number
MKCQ9903
MKCP0868
MKCN3482
MKCL5591
SHBL1761

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Jingru Li et al.
ACS applied materials & interfaces, 12(50), 56017-56026 (2020-12-04)
Uncontrollable dendrite growth and low Coulombic efficiency are the two main obstacles that hinder the application of rechargeable Li metal batteries. Here, an optimized amount of potassium hexafluorophosphate (KPF6, 0.01 M) has been added into the 2 M LiTFSI/ether-based electrolyte
Ruhamah Yunis et al.
Physical chemistry chemical physics : PCCP, 21(23), 12288-12300 (2019-05-30)
The synthesis and characterisation of new solid-state electrolytes is a key step in advancing the development of safer and more reliable electrochemical energy storage technologies. Organic ionic plastic crystals (OIPCs) are an increasingly promising class of material for application in
Barbara Pawłowska et al.
Journal of agricultural and food chemistry, 67(11), 3086-3095 (2019-02-26)
In this study, new chiral ionic liquids (CILs) were obtained from the natural-origin material (1 R,2 S,5 R)-(-)-menthol. The physicochemical characteristics of the studied imidazolium salts were investigated. The obtained 3-ethyl-1-[(1 R,2 S,5 R)-(-)-menthoxy-methyl]imidazolium salts are nonvolatile, nonflammable, and stable
Cong-Xiao Cao et al.
Scientific reports, 7(1), 3101-3101 (2017-06-10)
The unusually broad physical and chemical property window of ionic liquids allows for a wide range of applications, which gives rise to the recent spring-up of ionic liquid-based functional materials. Via solvothermal copolymerization of a monomeric ionic liquid and divinylbenzene
Ludmila Šimková et al.
Journal of magnetic resonance (San Diego, Calif. : 1997), 323, 106895-106895 (2021-01-12)
The molecule of 2,2-dinitroethene-1,1-diamine (FOX-7) is one of the most interesting molecules with multiple redox centres stabilized by push-pull effect. To reveal the detailed mechanism of its electrochemical process radical intermediates formed in the course of its electrochemical reduction in
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