Hexafluorosilicate

Base Information

• Chemical Name: Hexafluorosilicate
• CAS No.: 17084-08-1
• Molecular Formula: F6Si
• Molecular Weight: 142.076
• UN Number: 2856
• DSSTox Substance ID: DTXSID8047214
• Nikkaji Number: J283.200C
• Wikidata: Q27117065
• Mol file: 17084-08-1.mol

Synonyms:ammonium hexafluorosilicate;cesium hexafluosilicate;hexafluorosilicate;hexafluorosilicate (2-);hexafluorosilicate, ammonium salt;hexafluorosilicate, barium salt;hexafluorosilicate, calcium salt;hexafluorosilicate, magnesium salt;hexafluorosilicate, magnesium salt, hydrate;hexafluorosilicate, potassium salt;hexafluorosilicate, sodium salt;magnesium fluorosilicate;magnesium hexafluorosilicate;Na(2)SiF(6);sodium fluorosilicate;sodium fluosilicate;sodium hexafluorosilicate

Chemical Property of Hexafluorosilicate

Chemical Property:

• Vapor Pressure: 24.5mmHg at 25°C
• Boiling Point: 100°C at 760 mmHg
• PSA: 0.00000
• Density: 4.75 g/cm3
• LogP: 2.14040
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 7
• Rotatable Bond Count: 0
• Exact Mass: 141.96734551
• Heavy Atom Count: 7
• Complexity: 62.7
• Transport DOT Label: Poison

Purity/Quality:

98%,99%, ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Canonical SMILES: F[Si-2](F)(F)(F)(F)F

Technology Process of Hexafluorosilicate

There total 2 articles about Hexafluorosilicate which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

silicic Acid (10193-36-9,62647-18-1) + lithium fluoride (7789-24-4) → Si(OH)3F (39630-75-6) + SiF6(2-)*H(1+)=HSiF6(1-) (56977-47-0) + Si(OH)2F(1+) (201295-48-9) + silicon tetrafluoride (7783-61-1) + hexafluorosilicate anion (17084-08-1)

Guidance literature:

With water; lithium perchlorate; In water; 25°C, 3 m LiClO4 medium, fluorosilicate equilibria followed by potentiometric titration;; products not isolated;

DOI:10.1016/S0277-5387(00)80410-6

Reference yield:

boron δ-doped silicon + hydrogen fluoride (7664-39-3,12381-92-9,32057-09-3,74835-82-8) + nitric acid (7697-37-2,78989-43-2) → N-oxo-N-nitrosoamine (16824-89-8,12533-50-5) + dinitrogen tetraoxide (10544-72-6) + hexafluorosilicate anion (17084-08-1)

Guidance literature:

In neat (no solvent); boron doped Si(111) specimen etched for 5-180 s; detd. by Raman, UV;

DOI:10.1021/jp0608168

Reference yield:

hexafluorosilicate anion (17084-08-1) → silicic acid + hydrogen fluoride (7664-39-3,12381-92-9,32057-09-3,74835-82-8)

Guidance literature:

With alkali hydroxide; water; In water; decompn. by aq. alkali hydroxide; equilibrium constant given;; Kinetics;

upstream raw materials:

silicic Acid

lithium fluoride

hydrogen fluoride

nitric acid

Downstream raw materials:

SiF₅(H₂O)^(1-)

hydrogen fluoride

fluoride

Refernces