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402931

Sigma-Aldrich

Potassium fluoride

ACS reagent, ≥99.0%

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Linear Formula:
KF
CAS Number:
Molecular Weight:
58.10
Beilstein:
3902818
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

grade

ACS reagent

Quality Level

vapor pressure

1.3 hPa ( 885 °C)

Assay

≥99.0%

form

crystalline powder
powder, crystals or chunks

impurities

≤0.01 meq/g Titr. base
≤0.03 meq/g Titr. acid
≤0.1% K2SiF6

pH

8-9 (20 °C, 50 g/L)

mp

858 °C (lit.)

anion traces

chloride (Cl-): ≤0.005%
sulfate (SO42-): ≤0.005%

cation traces

Fe: ≤0.001%
Na: ≤0.2%
heavy metals: ≤0.001% (by ICP)

SMILES string

[F-].[K+]

InChI

1S/FH.K/h1H;/q;+1/p-1

InChI key

NROKBHXJSPEDAR-UHFFFAOYSA-M

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Application

A versatile fluoride ion source used in a study of ion-specific swelling and de-swelling of ampholytic polymer gels, in the room temperature oxidation of noble metals in HF, and in the measurement of electronic polarizabilities of ions in polymers of alkali halides.

Pictograms

CorrosionSkull and crossbones

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Eye Dam. 1

Storage Class Code

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

危险化学品

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25G
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Yingying Li et al.
Frontiers in chemistry, 8, 832-832 (2020-11-12)
The rare-earth nanocrystals containing Er3+ emitters offer very promising tools for imaging applications, as they can not only exhibit up-conversion luminescence but also down-conversion luminescence in the second near-infrared window (NIR II). Doping non-lanthanide cations into host matrix was demonstrated

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