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.

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