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Potassium hexafluorophosphate

CAS No.
17084-13-8
Chemical Name:
Potassium hexafluorophosphate
Synonyms
KPF6;Potassium fluorophosphate;POTASSIUM HEXAFLUOROPHOSPHATE, 99.999%;Potassium hexafL;Potassium fluophosphate;Kaliumhexafluorophosphat;POTASSIUM HEXAFLUOROPHOSHATE;POTASSIUM HEXFLUOROPHOSPHATE;POTASSIUM HEXAFLUOROPHOSPHATE;Phosphate,hexafluoro-,potassium
CBNumber:
CB6667795
Molecular Formula:
F6P.K
Molecular Weight:
184.06
MDL Number:
MFCD00011412
MOL File:
17084-13-8.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-09-10 11:27:25

Potassium hexafluorophosphate Properties

Melting point 575 °C (lit.)
Boiling point decomposes [STR93]
Density 2.75 g/mL at 25 °C (lit.)
storage temp. Refrigerator
solubility Methanol (Slightly), Water (Soluble)
form Powder
Specific Gravity 2.55
color White
Water Solubility 93 g/L (25 ºC)
Sensitive Hygroscopic
Stability Stable. Incompatible with strong acids. Thermal decomposition may generate HF, phosphorus oxides and phosphine.
InChI InChI=1S/F6P.K/c1-7(2,3,4,5)6;/q-1;+1
InChIKey YZDGRYDIGCWVND-UHFFFAOYSA-N
SMILES [P+5]([F-])([F-])([F-])([F-])([F-])[F-].[K+]
CAS DataBase Reference 17084-13-8(CAS DataBase Reference)
FDA UNII 88W436PDI9
EPA Substance Registry System Phosphate(1-), hexafluoro-, potassium (17084-13-8)
UNSPSC Code 12352302
NACRES NA.23

SAFETY

Risk and Safety Statements

Symbol(GHS)  Corrosion (GHS05)
GHS05
Signal word  Danger
Hazard statements  H314
Precautionary statements  P260-P280-P301+P330+P331-P303+P361+P353-P304+P340+P310-P305+P351+P338
PPE Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
Hazard Codes  C,Xi
Risk Statements  34-20/21/22
Safety Statements  26-27-36/37/39-45
RIDADR  UN 3260 8/PG 2
WGK Germany  1
Hazard Note  Irritant
TSCA  TSCA listed
HazardClass  8
PackingGroup  III
HS Code  28269090
Storage Class 8A - Combustible corrosive hazardous materials
Hazard Classifications Eye Dam. 1
Skin Corr. 1B
REACH Registrations Active
Limited Quantities 1 Kg (2.2 lbs) (solid)
Excepted Quantities Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml)
NFPA 704
1
3 1

Potassium hexafluorophosphate price More Price(58)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 200913 Potassium hexafluorophosphate ≥99% 17084-13-8 50g $61.9 2026-04-30 Buy
Sigma-Aldrich 200913 Potassium hexafluorophosphate ≥99% 17084-13-8 1kg $445 2026-04-30 Buy
TCI Chemical P1023 Potassium Hexafluorophosphate >95.0%(T) 17084-13-8 25g $25 2026-04-30 Buy
TCI Chemical P1023 Potassium Hexafluorophosphate >95.0%(T) 17084-13-8 100g $85 2026-04-30 Buy
Strem Chemicals 93-1926 Potassium hexafluorophosphate, 99.5% 99.5% 17084-13-8 100g $47 2026-04-30 Buy
Product number Packaging Price Buy
200913 50g $61.9 Buy
200913 1kg $445 Buy
P1023 25g $25 Buy
P1023 100g $85 Buy
93-1926 100g $47 Buy

Potassium hexafluorophosphate Chemical Properties,Uses,Production

Description

Potassium hexafluorophosphate, abbreviated as KPF6, is a associated electrolyte. In battery systems, it acts as an electrolyte additive in anode-less lithium metal batteries, lithium-sulphur batteries and solid-state batteries; by forming a protective shielding effect and modulating the solid-state electrolyte interface, it enhances cycling stability, ionic conductivity and electrochemical performance [1-3]. In perovskite solar cells, KPF6 is used as an interface modification material; by treating the SnO2 quantum dot/perovskite interface, it can passivate defects and enhance stable photoconversion efficiency [4].

Chemical Properties

white crystalline powder

Uses

A soluble neutral salt, Potassium hexafluorophosphate can be used for synthesis.

Uses

Potassium Hexafluorophosphate is used in preparation of Moxifloxacin derivatives and its application.

Preparation

Potassium hexafluorophosphate is prepared by reacting phosphorus pentachloride, potassium chloride, and hydrofluoric acid in liquid hydrogen fluoride. The reaction equation is: PCl₅ + KCl + 6HF → KPF₆ + 6HCl.

Hazard

Toxic by ingestion.

Purification Methods

Crystallise it from alkaline aqueous solution, using polyethylene vessels, or from 95% EtOH, and dry it in a vacuum desiccator over KOH. [Kloditz Z Anorg Allgem Chem 284 144 1956, Kwasnik in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 196 1963.]

References

[1] Hagos, T. M., Berhe, G. B., Hagos, T. T., Bezabh, H. K., Abrha, L. H., Beyene, T. T., Huang, C.-J., Yang, Y.-W., Su, W.-N., Dai, H., Hwang, B.-J. (2019). Dual electrolyte additives of potassium hexafluorophosphate and tris (trimethylsilyl) phosphite for anode-free lithium metal batteries. Electrochimica Acta, 316, 52–59. https://doi.org/10.1016/j.electacta.2019.05.061
[2] Li, J., Liu, S., Cui, Y., Zhang, S., Wu, X., Xiang, J., Li, M., Wang, X., Xia, X., Gu, C., Tu, J. (2020). Potassium Hexafluorophosphate Additive Enables Stable Lithium–Sulfur Batteries. ACS Applied Materials & Interfaces, 12(50), 56017–56026. https://doi.org/10.1021/acsami.0c17406
[3] Li, J., Liang, J., Ren, Z., Shi, C., Li, Y., Zhang, L., Zhang, Q., He, C., Ren, X. (2022). Insights of potassium hexafluorophosphate additive in solid polymer electrolyte for realizing high performance all-solid-state lithium metal batteries. Electrochimica Acta, 429, 141061. https://doi.org/10.1016/j.electacta.2022.141061
[4] Wang, Z., Wu, T., Xiao, L., Qin, P., Yu, X., Ma, L., Xiong, L., Li, H., Chen, X., Wang, Z., Wu, T., Xiao, M. L., Qin, P., Yu, D. X., Ma, D. L., Xiong, D. L., Li, D. H., Chen, X. (2021). Multifunctional potassium hexafluorophosphate passivate interface defects for high efficiency perovskite solar cells. Journal of Power Sources, 488, 229451. https://doi.org/10.1016/j.jpowsour.2021.229451

1279123-63-5
7664-39-3
17084-13-8
Synthesis of Potassium hexafluorophosphate from Fluoride (HF21-), potassium (1:1) and Hydrogen fluoride
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View Lastest Price from Potassium hexafluorophosphate manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Potassium hexafluorophosphate pictures 2026-09-13 Potassium hexafluorophosphate
17084-13-8
0.99 RongNa Biotechnology Co.,Ltd
Potassium hexafluorophosphate pictures 2026-06-30 Potassium hexafluorophosphate
17084-13-8
1KG 98% 1000kgs Shaanxi Dideu New Materials Co. Ltd
Potassium Hexafluorophosphate pictures 2026-05-28 Potassium Hexafluorophosphate
17084-13-8
$10.50 1KG 99% 10 ton Hebei Chuanghai Biotechnology Co,.LTD

Potassium hexafluorophosphate Spectrum

POTASSIUM HEXAFLUOROPHOSPHATE, 99.999% Potassiumhexafluorophosphate,99.5% Potassium hexafluorophosphate, extra pure, 99% Kaliumhexafluorophosphat Phosphate,hexafluoro-,potassium POTASSIUM HEXAFLUOROPHOSPHATE(V): 99.5% POTASSIUM HEXAFLUOROPHOSHATE Potassium hexafluorophosphate, 99% min Potassium hexafluorophosphate, 95% min Potassium hexafluorophosphate, 99% min free fluid max. 0.3% Potassium fluophosphate Potassium hexafluorophosphate, 99%, extra pure Potassium Hexafluorophosphate Min POTASSIUM HEXAFLUOROPHOSPHATE, KPF6 PotassiuM hexafluorophosphate, extra pure, 99% 250GR PotassiuM hexafluorophosphate 98% PotassiuM hexafluorophosphate 99.5% trace Metals basis PotassiuM hexafluorophosphate puruM, >=98.0% (graviMetric) Potassium hexafluorophosphate >=99% Potassium hexafL hexafluoro-phosphate(1-potassium Phosphate(1-),hexafluoro-,potassium POTASSIUM HEXAFLUOROPHOSPHATE POTASSIUM HEXAFLUOROPHOSPHATE (V) POTASSIUM HEXFLUOROPHOSPHATE Potassium hexafluorophosphate msds PotassiumHexafluorophosphate> Potassium Hexafluorophosphate,98% Potassium hexafluorophosphate ISO 9001:2015 REACH Six bottles of potassium phosphate Potassium hexafluorophosphate (6CI, 7CI) KPF6 Potassium fluorophosphate 17084-13-8 7084-13-8 F6KP F6PK KPF6 Inorganic Salts Synthetic Reagents Preservative metal fluorophosphate complex Inorganic Salts Potassium Salts PotassiumMetal and Ceramic Science Salts Synthetic Reagents Potassium bc0001 17084-13-8 YP00036