Hexafluorosilicic acid, 35% w/w aq. soln., Thermo Scientific Chemicals

Product Code	Brand	Quantity
11373696	Thermo Scientific Alfa Aesar L14829.22	100 g
11383696	Thermo Scientific Alfa Aesar L14829.36	500 g
11393696	Thermo Scientific Alfa Aesar L14829.0E	2500 g

Description

Hexafluorosilicic acid is commonly used as a source of fluoride. It is converted to a variety of useful hexafluorosilicate salts. It is also used as an electrolyte in the Betts electrolytic process for refining lead. It is an important organic reagent for cleaving Si-O bonds of silyl ethers. Further, it is used as wood a preservation agent and also used in surface modification of calcium carbonate.

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.

Applications
Hexafluorosilicic acid is commonly used as a source of fluoride. It is converted to a variety of useful hexafluorosilicate salts. It is also used as an electrolyte in the Betts electrolytic process for refining lead. It is an important organic reagent for cleaving Si-O bonds of silyl ethers. Further, it is used as wood a preservation agent and also used in surface modification of calcium carbonate.

Solubility
Miscible with water.

Notes
Incompatible in strong oxidizing agents, metals, alkalis, strong acids, stoneware and glass.

Chemical Identifiers

• CAS: 16961-83-4
• Molecular Weight (g/mol): 144.091
• InChI Key: OHORFAFFMDIQRR-UHFFFAOYSA-P
• PubChem CID: 21863527
• SMILES: [H+].[H+].F[Si-2](F)(F)(F)(F)F

• Molecular Formula: F6H2Si
• MDL Number: MFCD00036289
• Synonym: hexafluorosilicic acid, fluorosilicic acid, dihydrogen hexafluorosilicate, silicate 2-, hexafluoro-, dihydrogen, hexafluorosilicon 2-; hydron, dihydrogen hexafluorosilanediuide, silicofluoridd, hexafluorosilic acid, hydrofluorosilic acid, kieselfluorwasserstoffsaure
• IUPAC Name: hexafluorosilicon(2-);hydron

Specifications

• Boiling Point: 108°C to 109°C
• Molecular Formula: F6H2Si
• MDL Number: MFCD00036289
• Merck Index: 14,4182
• InChI Key: OHORFAFFMDIQRR-UHFFFAOYSA-P
• IUPAC Name: hexafluorosilicon(2-);hydron
• PubChem CID: 21863527
• Concentration or Composition (by Analyte or Components): 35% w/w aq. soln.

• CAS: 16961-83-4
• Linear Formula: H₂SiF₆
• UN Number: UN1778
• Synonym: hexafluorosilicic acid, fluorosilicic acid, dihydrogen hexafluorosilicate, silicate 2-, hexafluoro-, dihydrogen, hexafluorosilicon 2-; hydron, dihydrogen hexafluorosilanediuide, silicofluoridd, hexafluorosilic acid, hydrofluorosilic acid, kieselfluorwasserstoffsaure
• SMILES: [H+].[H+].F[Si-2](F)(F)(F)(F)F
• Molecular Weight (g/mol): 144.091
• Formula Weight: 144.09
• Chemical Name or Material: Hexafluorosilicic acid

Safety and Handling

GHS H Statement
H314
Causes severe skin burns and eye damage.

GHS P Statement
P260-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P501a
Do not breathe dust/fume/gas/mist/vapors/spray.
IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.

Danger

missing translation for 'dotInformation' : Transport Hazard Class: 8; Packing Group: II; Proper Shipping Name: FLUOROSILICIC ACID

missing translation for 'rtecsNumber' : VV8225000

missing translation for 'tsca' : TSCA

Product Identifier

• Hexafluorosilicic acid, 35% w/w aqueous solution

Signal Word

• Danger

Hazard Category

• Serious eye damage/eye irritation Category 1
• Skin corrosion/irritation Category 1 B

Hazard Statement

• H314-Causes severe skin burns and eye damage.
• H318-Causes serious eye damage.

Precautionary Statement

• P260-Do not breathe dust/fume/gas/mist/vapours/spray.
• P264-Wash face, hands and anyexposed skin thoroughly after handling.
• P280-Wear protective gloves/protective clothing/eye protection/face protection.
• P301+P330+P331-IF SWALLOWED: rinse mouth. Do NOT induce vomiting.
• P305+P351+P338-IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
• P310-Immediately call a POISON CENTER/doctor/.

Supplemental information

• MIXTURE LIST-Contains : Fluorosilicic acid

RUO – Research Use Only