Potassium silicofluoride, 98%

About Potassium silicofluoride, 98%

Potassium silicofluoride is an alkali metal compound carrying the CAS registry number 16871-90-2 at a purity of 98%. With the molecular formula F6K2Si, it has a molar mass of 220.27 g/mol. Systematically, it is named dipotassium. Hexafluorosilicon(2-). Alternative names: Potassium hexafluorosilicate and Potassium fluosilicate.

It is supplied as a powder. Store in a tightly closed container in a cool, dry and well-ventilated place. It carries the GHS signal word “Danger” with 3 hazard statements. Review the Safety Data Sheet before use.

Key uses span fine chemical synthesis, optics and photonics and ceramics and glass. It is used across academic and industrial research.

We offer Potassium silicofluoride in 500 g, 5 kg and 4 x 25 kg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Fine chemical synthesis
Optics & photonics
Ceramics & glass

Industries

Specifications & identifiers

Chemical identifiers
Product name	Potassium silicofluoride, 98%
Catalogue No.	VQ-014065
CAS Number	16871-90-2
IUPAC name	dipotassium;hexafluorosilicon(2-)
Molecular formula	F₆K₂Si
Molecular weight	220.27 g/mol
Exact mass	219.8948
Purity / assay	98%
HSN code	28269000
InChIKey	UUHPPUWEDCVPCO-UHFFFAOYSA-N
SMILES	F[Si-2](F)(F)(F)(F)F.[K+].[K+]
PubChem CID	61851

Physical properties
Physical form	Powder
Appearance	Powder
H-bond donors / acceptors	0 / 7
TPSA	0 Å²
UN number	UN 2655
Synonyms	Potassium hexafluorosilicate, Potassium fluosilicate, Dipotassium hexafluorosilicate, Dipotassium hexafluorosilicate(2-), Silicate(2-), hexafluoro-, potassium (1:2), Dipotassium hexafluorosilicate(2), Silicate(2), hexafluoro, dipotassium, Silicate(2), hexafluoro, potassium (1:2), Silicate(2-), hexafluoro-, dipotassium, dipotassium hexafluorosilanediuide, F6K2Si, K2SiF6

Safety & hazard information (GHS)

Toxic

Signal word: Danger

Hazard statements

H301Toxic if swallowed
H311Toxic in contact with skin
H331Toxic if inhaled

Precautionary statements: P261, P262, P264, P270, P271, P280, P301 + P316, P302 + P352, P304 + P340, P316, P321, P330, P361 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Potassium silicofluoride, 98%?

The CAS Registry Number of Potassium silicofluoride, 98% is 16871-90-2. It is also known as Potassium hexafluorosilicate, Potassium fluosilicate, Dipotassium hexafluorosilicate.

What is the molecular formula and molecular weight of Potassium silicofluoride, 98%?

Potassium silicofluoride, 98% has the molecular formula F6K2Si and a molecular weight of 220.27 g/mol.

Which grade and pack sizes of Potassium silicofluoride, 98% can I order?

We supply Potassium silicofluoride, 98% in (98%) grade, in 500 g, 5 kg, 4 x 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Potassium silicofluoride, 98%?

Yes. Every lot of Potassium silicofluoride, 98% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Potassium silicofluoride, 98% be shipped internationally?

Yes. Potassium silicofluoride, 98% is classified as hazardous (UN 2655), so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.