221872
Potassium fluoride dihydrate
reagent grade, 98%
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About This Item
Linear Formula:
KF · 2H2O
CAS Number:
Molecular Weight:
94.13
NACRES:
NA.55
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
232-151-5
MDL number:
Assay:
98%
Grade:
reagent grade
Form:
crystals or chunks
grade
reagent grade
Quality Level
assay
98%
form
crystals or chunks
mp
41 °C (lit.)
SMILES string
[F-].[K+].[H]O[H].[H]O[H]
InChI
1S/FH.K.2H2O/h1H;;2*1H2/q;+1;;/p-1
InChI key
MZFXHSQFQLKKFD-UHFFFAOYSA-M
Application
Potassium fluoride dihydrate may be used in the following processes:
- As a source of active fluoride ion when used in combination with tetra-n-butylammonium chloride.
- To generate tetrabutylammonium fluoride in situ by reacting with tetrabutylammonium hydrogensulfate, which can catalyze the esterification of carboxylic acids with alkyl halides and ring-opening of aziridines.
- In combination with chlorotrimethylsilane for the desilylation of O-tert-butyldimethylsilyl ethers.
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral
Storage Class
13 - Non Combustible Solids
wgk
WGK 1
Regulatory Listings
Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.
Class I Designated Chemical Substances
prtr
Substances Subject to be Indicated Names
ishl_indicated
Substances Subject to be Notified Names
ishl_notified
221872-500G:4.548173932286E12 + 221872-100G:4.548173932279E12
jan
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Convenient source of 'naked'fluoride: tetra-n-butylammonium chloride and potassium fluoride dihydrate.
Carpino LA and Sau AC.
Journal of the Chemical Society. Chemical Communications, 11, 514-515 (1979)
Chromatographia, 28, 179-179 (1989)
Esterification of carboxylic acids catalyzed by in situ generated tetraalkylammonium fluorides
Ooi T, et al.
Tetrahedron Letters, 42(52), 9245-9248 (2001)