Silver tetrafluoroborate Chemical Properties

Melting point:

70-73 °C(lit.)

storage temp. 

Store below +30°C.

solubility 

Acetonitrile (Slightly), Methanol (Very Slightly)

form 

Crystalline Powder

color 

White to pale brown

Water Solubility 

SOLUBLE

Sensitive 

Hygroscopic

Exposure limits

ACGIH: TWA 2.5 mg/m3
NIOSH: IDLH 250 mg/m3; TWA 2.5 mg/m3

InChIKey

CCAVYRRHZLAMDJ-UHFFFAOYSA-N

CAS DataBase Reference

14104-20-2(CAS DataBase Reference)

EPA Substance Registry System

Borate(1-), tetrafluoro-, silver(1+) (14104-20-2)

Safety Information

Hazard Codes 

C

Risk Statements 

34-22-20/21/22

Safety Statements 

26-36/37/39-45-27

RIDADR 

UN 3260 8/PG 2

WGK Germany 

3

RTECS 

ED2875000

F 

3-8-10-21

Hazard Note 

Corrosive

TSCA 

T

HazardClass 

6.1

PackingGroup 

III

HS Code 

28432900

MSDS

• Language:English Provider:Silver tetrafluoroborate
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Silver tetrafluoroborate Usage And Synthesis

Chemical Properties

beige crystalline powder

Uses

Silver tetrafluoroborate finds applications as a useful reagent in inorganic, organic and organomettalic chemistry. It acts as a moderately strong oxidant in dichloromethane, replaces halide anions and ligands with weakly coordinating tetrafluoroborate anions, and behaves as a catalyst for cyclization reactions. It is a potent promoter for chemical glycosylation.

Application

Silver tetrafluoroborate is a transition metal salt extensively used in organic syntheses.
Gold Catalysts — 21st Century ′Gold Rush′
Displaces chloride from precious metal complexes used in the oxidation of alcohols by persulfate.
Provides a silver-ion template for improved macrolatamization of a linear dipeptide.

General Description

Silver tetrafluoroborate (AgBF4) is used as a Lewis acid in organic synthesis. It is known to have a high affinity towards organic halides. It is employed in organic reactions like activation of acyl chlorides, nucleophilic substitution, rearrangement, cycloaddition, cyclization, ring expansion and oxidation.

reaction suitability

reagent type: oxidant

Safety Profile

Poison by intravenous route. When heated to decomposition it emits toxic fumes of F-. Used for plating baths. See also SILVER COMPOUNDS, BORON COMPOUNDS, and FLUORIDES.

Synthesis

Preparation of silver tetrafluoroborate and MBDP
This reaction is completed with the lights off. In a 25 mL round-bottom flask covered with aluminum foil, AgBF4 (0.0397 g (0.20 mmol) is dissolved in 10 mL CH3CN. To the solution MBDP (0.0645 g, 0.20 mmol) is added and allowed to stir for 3 hours. The solution is concentrated under vacuum to approximately 3 mL then layered with Et2O. The flask is placed in the freezer. X-ray quality crystals are formed.

Silver tetrafluoroborate (14104-20-2)Related Product Information

• NITROSONIUM TETRAFLUOROBORATE
• Potassium tetrafluoroborate
• Trimethyloxonium Tetrafluoroborate
• AZURE B TETRAFLUOROBORATE
• Zinc tetrafluoroborate
• Ammonium fluoborate
• Cupric tetrafluoroborate hydrate
• Mercury
• NITRONIUM TETRAFLUOROBORATE
• Silver
• Fluoroboric acid
• Lithium tetrafluoroborate
• Lead(II) tetrafluoroborate
• Cadmium fluoroborate
• Sodium tetrafluoroborate
• 1-BUTYLPYRIDINIUM TETRAFLUOROBORATE
• FERROUS FLUOBORATE
• Boron