278955

Potassium tetrafluoroborate

96%

• Synonym(s): Potassium borofluoride
• 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

Properties

• 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

Description

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.

Safety Information

• 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