Sodium hexafluorosilicate, >99%, Thermo Scientific Chemicals

Description

Sodium hexafluorosilicate is used as a additive for water fluoridation, opal glass raw material and in ore refining. It is also used in the preparation of other fluoride chemicals like sodium fluoride, sodium hexafluoroaluminate, potassium hexafluorosilicate, ammonium fluoride and calcium fluoride. It finds application as flotator, component for wet etching, wood preservative, brazing flux and welding compound. It is an active component of concrete.

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: 16893-85-9
• Molecular Formula: F6Na2Si
• Molecular Weight (g/mol): 188.06
• MDL Number: MFCD00003491
• InChI Key: TWGUZEUZLCYTCG-UHFFFAOYSA-N
• Synonym: sodium hexafluorosilicate, sodium fluosilicate, salufer, sodium silicofluoride, safsan, super prodan, destruxol applex, ortho earwig bait, ortho weevil bait, ens-zem weevil bait
• PubChem CID: 28127
• SMILES: [Na+].[Na+].F[Si--](F)(F)(F)(F)F

• Melting Point: (decomposition)
• Color: White
• Physical Form: Crystals
• Quantity: 500 g
• Assay Percent Range: >99%
• Solubility Information: Slightly soluble in water. Solubility increases with temperature. Insoluble in alcoholSlightly soluble in water. Insoluble in alcohol.
• IUPAC Name: disodium hexafluorosilanediuide
• Formula Weight: 188.06
• Refractive Index: 1.31
• Density: 2.679 g/cm³ at 20°C
• Chemical Name or Material: Sodium hexafluorosilicate

Safety and Handling

Hazard Category	H301+H311+H331
Precautionary Statement	P261-P264b-P270-P271-P280-P301+P310-P302+P352-P304+P340-P311-P312-P330-P361-P363-P501c
DOTInformation	DOT Class: 6.1, Packaging Group: III
EINECSNumber	240-934-8
RTECSNumber	VV8410000
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only