Potassium hexafluorosilicate, 99.999% (metals basis)

Description

CAS: 16871-90-2 | F6K2Si | 220.27 g/mol

Potassium hexafluorosilicate is used in the production of porceleins. It is also used for the preservation of timber. It is involved in the manufacturing of ceramics, aluminum and magnesium smelting. In addition, it is used as an intermediate in the manufacturing of optical glass.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Specifications

Chemical Identifiers

• CAS: 16871-90-2
• Molecular Formula: F6K2Si
• Molecular Weight (g/mol): 220.27
• MDL Number: MFCD00040666
• InChI Key: UUHPPUWEDCVPCO-UHFFFAOYSA-N
• Synonym: potassium hexafluorosilicate, potassium fluosilicate, potassium silicofluoride, dipotassium hexafluorosilicate, silicate 2-, hexafluoro-, dipotassium, unii-2610w49xyd, dipotassium hexafluorosilicon 2-, dipotassium hexafluorosilicate 2-, sif6.2k, potassium hexafluorosilicate iv
• PubChem CID: 61851
• IUPAC Name: dipotassium;hexafluorosilicon(2-)
• SMILES: [K+].[K+].F[Si--](F)(F)(F)(F)F

• Melting Point: (decomposition)
• Color: White
• pH: 3.4
• Physical Form: Crystalline
• Quantity: 10 g
• Linear Formula: K₂SiF₆
• UN Number: UN2655
• Merck Index: 14,7638
• Solubility Information: Slightly soluble in water.
• Formula Weight: 220.28
• Percent Purity: 99.999%
• Sensitivity: Moisture sensitive
• Density: 2.27 g/mL
• Assay: (metals basis)
• Chemical Name or Material: Potassium hexafluorosilicate

Safety and Handling

Hazard Category	H301+H311+H331
Hazard Statement	GHS H Statement H301-H311-H331 Toxic if swallowed. Toxic in contact with skin. Toxic if inhaled.
Precautionary Statement	P261-P264b-P270-P271-P280-P301+P310-P302+P352-P304+P340-P311-P312-P330-P361-P363-P501c
DOTInformation	Transport Hazard Class: 6.1; Packing Group: III; Proper Shipping Name: POTASSIUM FLUOROSILICATE
EINECSNumber	240-896-2
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only