940135

Sodium tetrafluoroborate

electrolyte powder, anhydrous, battery grade, 99% trace metals basis

• Synonym(s): Sodium borofluoride, Sodium fluoroborate
• Linear Formula: NaBF₄
• CAS Number: 13755-29-8
• Molecular Weight: 109.79
• MDL number: MFCD00003515
• UNSPSC Code: 12352200
• EC Index Number: 237-340-6

Properties

• grade: battery grade
• Quality Level: 100
• Assay: 99% trace metals basis
• form: powder
• mp: 384 °C (lit.)
• solubility: soluble (carbonates: soluble(lit.); glymes: soluble(lit.))
• density: 2.47 g/mL at 25 °C (lit.); 2.47 g/mL at 25 °C
• application(s): battery manufacturing
• SMILES string: [Na+].F[B-](F)(F)F
• InChI: 1S/BF4.Na/c2-1(3,4)5;/q-1;+1
• InChI key: KGJZTOFHXCFQIV-UHFFFAOYSA-N

Description

General description

Our battery grade sodium tetrafluoroborate (NaBF₄) is a high-purity, anhydrous compound, synthesized carefully to minimize trace metals and other impurities. The crystalline NaBF₄ is soluble in carbonates and glymes used in battery electrolytes, like ethylene carbonate and dimethyl carbonate.

Application

Sodium tetrafluoroborate is used in sodium-ion battery research in liquid electrolyte formulations as an electrolytic salt or as an additive. It is intended to optimize the performance and stability of sodium-ion batteries. It has been shown to form stable fluorine-rich solid-electrolyte interphase (SEI) and cathode-electrolyte interphase (CEI), which improves the efficiency of sodium metal deposition and dissolution and leads to high cycling stability even at high voltages.

Safety Information

• Pictograms: GHS05
• Signal Word: Danger
• Hazard Statements: H314
• Precautionary Statements: P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363
• Hazard Classifications: Eye Dam. 1 - Skin Corr. 1B
• Storage Class Code: 8A - Combustible corrosive hazardous materials
• WGK: WGK 1