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278955

Sigma-Aldrich

Potassium tetrafluoroborate

96%

Synonym(s):

Potassium borofluoride

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About This Item

Linear Formula:
KBF4
CAS Number:
14075-53-7
Molecular Weight:
125.90
EC Number:
237-928-2
MDL number:
MFCD00011395
UNSPSC Code:
12352302
PubChem Substance ID:
24856844
NACRES:
NA.23

Assay

96%

form

powder

mp

530 °C (lit.)

density

2.505 g/mL at 25 °C (lit.)

SMILES string

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

InChI

1S/BF4.K/c2-1(3,4)5;/q-1;+1

InChI key

AKEBROIVCDHVSD-UHFFFAOYSA-N

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General description

Potassium tetrafluoroborate is a white crystalline salt with a low melting point. It is used as a reagent in organic synthesis, high-efficiency electrolyte additive, and in electroplating applications.

Application

Potassium tetrafluoroborate can be used as:
  • An additive to perovskite precursor solution for preparing wide bandgap perovskite films for solar cells.
  • An electrolyte additive in potassium ion and Li-ion batteries to enhance stability and performance.
  • A reagent in the synthesis of bis-N-heterocyclic carbene (NHC) ruthenium complex.
  • An electroplating solution to prepare metal coatings and alloys.

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCP2454
MKCL5520
MKCH5186
MKCH4536
MKCF3711

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