Silver tetrafluoroborate

Structural formula
General
Surname	Silver tetrafluoroborate
other names	Silver (I) tetrafluoroborate; Tetrafluoroboric acid silver salt;
Molecular formula	Ag [BF 4 ]
Brief description	white, almost odorless solid
External identifiers / databases
EC number	237-956-5
ECHA InfoCard	100.034.491
PubChem	159722
Wikidata	Q2162045
properties
Molar mass	194.67 g mol −1
Physical state	firmly
Melting point	70-73 ° C
solubility	soluble in water
safety instructions
GHS labeling of hazardous substances danger
H and P phrases	H: 314
	P: 280-301 + 330 + 331-303 + 361 + 353-305 + 351 + 338-310
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Silver tetrafluoroborate is a chemical compound from the group of fluoroborates and the silver salt of tetrafluoroboric acid .

Extraction and presentation

Silver tetrafluoroborate can be obtained by reacting boron trifluoride with silver (I) oxide in benzene suspension with the formation of silver metaborate.

{\ displaystyle \ mathrm {2 \ Ag_ {2} O + 4 \ BF_ {3} \ longrightarrow 3 \ Ag [BF_ {4}] + AgBO_ {2}}}

properties

Silver tetrafluoroborate is a light-sensitive, hygroscopic, white, almost odorless solid that is soluble in water.

use

Silver tetrafluoroborate is used as a catalyst for nitration, acylation and sulfonation. Due to its ability to form complex compounds with olefins and aromatics, it is used for the separation processes of these compounds. It is also a very good activator of glycosyl donors.

Individual evidence

↑ ^a ^b ^c ^d ^e ^f Entry on silver tetrafluoroborate in the GESTIS substance database of the IFA , accessed on January 8, 2020(JavaScript required) .
↑ Data sheet silver tetrafluoroborate (PDF) from Merck , accessed December 31, 2012.
↑ Andreas J. Wagner, Philipp von den Hoff: Presentation of silver (I) tetrafluoroborate (III) Ag (BF4) (PDF; 202 kB), July 26, 2004
↑ Herbert W. Roesky: Efficient Preparations of Fluorine Compounds . John Wiley & Sons, 2012, ISBN 1-118-40942-6 , pp. 43 ( limited preview in Google Book search).

[GESTIS-1] ↑ ^a ^b ^c ^d ^e ^f Entry on silver tetrafluoroborate in the GESTIS substance database of the IFA , accessed on January 8, 2020(JavaScript required) .

[Merck-2] Data sheet silver tetrafluoroborate (PDF) from Merck , accessed December 31, 2012.

[3] Andreas J. Wagner, Philipp von den Hoff: Presentation of silver (I) tetrafluoroborate (III) Ag (BF4) (PDF; 202 kB), July 26, 2004

[Herbert_W._Roesky-4] Herbert W. Roesky: Efficient Preparations of Fluorine Compounds . John Wiley & Sons, 2012, ISBN 1-118-40942-6 , pp. 43 ( limited preview in Google Book search).