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60322

Supelco

Potassium hexafluorosilicate

≥99.0% (T)

Synonym(s):

Dipotassium hexafluorosilicate, Potassium fluorosilicate, Potassium fluosilicate, Potassium silicofluoride

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About This Item

Linear Formula:
K2SiF6
CAS Number:
16871-90-2
Molecular Weight:
220.27
EC Number:
240-896-2
MDL number:
MFCD00040666
UNSPSC Code:
12000000
PubChem Substance ID:
329758873
NACRES:
NA.21

Quality Level

100

assay

≥99.0% (T)

form

solid

density

2.665 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤500 mg/kg
sulfate (SO42-): ≤200 mg/kg

cation traces

Ca: ≤50 mg/kg
Cd: ≤50 mg/kg
Co: ≤50 mg/kg
Cu: ≤50 mg/kg
Fe: ≤100 mg/kg
Na: ≤1000 mg/kg
Ni: ≤50 mg/kg
Pb: ≤50 mg/kg
Zn: ≤50 mg/kg

SMILES string

[K+].[K+].F[Si--](F)(F)(F)(F)F

InChI

1S/F6Si.2K/c1-7(2,3,4,5)6;;/q-2;2*+1

InChI key

UUHPPUWEDCVPCO-UHFFFAOYSA-N

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Caution

may contain black particles

pictograms

Skull and crossbones
GHS06

signalword

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral

Storage Class

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

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Certificates of Analysis (COA)

Lot/Batch Number
BCCK5199
BCCK5200
BCCD1243
BCBX2257
BCBW1397

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Ali Ouasri et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 59(4), 851-857 (2003-03-01)
The X-ray powder diffraction pattern of [(CH(3))(3)NH](2)SiF(6) was obtained and indexed on the basis of a centred cubic unit cell with the P4(1)32 as the likely space group. The Infrared and Raman spectra of this compound have been recorded at
Ram Thaimattam et al.
Acta crystallographica. Section B, Structural science, 64(Pt 4), 483-490 (2008-07-22)
The co-crystal structure of N-methylpiperidine betaine with N-methylpiperidine betaine hexafluorosilicate represents an unusual case of a salt co-crystal with a high Z' value (3), unexpected conformational variability, and with nearly 50% of its contents disordered. The betaine units from the
Shingo Shibata et al.
American journal of dentistry, 24(3), 148-152 (2011-08-31)
To evaluate the degree of penetration of an ammonium hexafluorosilicate [SiF: (NH4)2SiF6] solution containing various antibacterial agents into dentin and the depth of dentin tubule occlusion by the precipitate. Various antibacterial SiF solutions were prepared with the addition to chlorhexidine
Toshiyuki Suge et al.
Dental materials : official publication of the Academy of Dental Materials, 24(2), 192-198 (2007-06-05)
Diamine silver fluoride [AgF: (NH(3))(2)AgF] has been used clinically in Japan, as it reduces dental caries and dentin hypersensitivity. However, AgF stains the teeth black due to silver precipitation. To overcome this drawback, the authors prepared ammonium hexafluorosilicate [SiF: (NH(4))(2)SiF(6)]
Mark A Brzezinski et al.
Analytical chemistry, 78(17), 6109-6114 (2006-09-02)
A procedure for the automated determination of isotopic abundances of silicon from biogenic and lithogenic particulate matter and from dissolved silicon in fresh or saltwaters is reported. Samples are purified using proven procedures through the reaction of Si with acidified
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