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Chlorides and other halides

Lithium hexafluorosilicate

Also known as Dilithium hexafluorosilicate, dilithium, hexafluorosilicon(2-), Lithium silicofluoride

CAS 17347-95-4Formula F6Li2SiMolar mass 155.96 g/molEC 241-372-6
GHS signal word: Warning. Pictograms: Harmful or irritant
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Lithium hexafluorosilicate chemical structure, F6Li2Si, CAS 17347-95-4
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
17347-95-4
Formula
F6Li2Si
Molar mass
155.96 g/mol
EC number
241-372-6
HS code
282690
Category
Chlorides and other halides

What is Lithium hexafluorosilicate?

Plain description, key identifiers and synonyms

Lithium hexafluorosilicate is a chemical substance with the molecular formula F6Li2Si and a molar mass of 155.96 g/mol. Its CAS registry number is 17347-95-4. The IUPAC name is dilithium, hexafluorosilicon(2-).

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
dilithium, hexafluorosilicon(2-)
CAS number
17347-95-4
EC number
241-372-6
Molecular formula
F6Li2Si
MDL number
MFCD00049473
InChIKey
QSDQCOGGZWIADS-UHFFFAOYSA-N
InChI
InChI=1S/F6Si.2Li/c1-7(2,3,4,5)6;;/q-2;2*+1
SMILES (canonical and isomeric)
[Li+].[Li+].F[Si-2](F)(F)(F)(F)F

Synonyms

  • Dilithium hexafluorosilicate
  • dilithium, hexafluorosilicon(2-)
  • Lithium silicofluoride
  • F6Li2Si
  • Silicate(2-), hexafluoro-, lithium (1:2)
  • Lithium silicon fluoride (Li2SiF6)

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
155.96 g/molcalc.
Exact mass
155.9994 Dacalc.
LogP (octanol/water)
-3.85calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
0calc.
Heavy atoms
9calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
3calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H302Harmful if swallowed.
Precautionary statements (5)
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P301 + P317If swallowed: Get medical help.
  • P330Rinse mouth.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Lithium hexafluorosilicate suppliers

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Lithium hexafluorosilicate price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Lithium hexafluorosilicate is traded under.

HS 2826.90Indicative HS code

Fluorides, fluorosilicates, fluoroaluminates and other complex fluorine salts, other

World exports in 2024
$465M
−20.9% vs 2023, imports $484M
2019 to 2024
Top exporters
  1. China52.6%
  2. Germany16.1%
  3. South Korea11.1%
Top importers
  1. Japan33.0%
  2. United States18.8%
  3. South Korea8.4%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Lithium hexafluorosilicate is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Lithium hexafluorosilicate, based on the data on this page

What is Lithium hexafluorosilicate?

Lithium hexafluorosilicate is a chemical substance with the molecular formula F6Li2Si and a molar mass of 155.96 g/mol. Its CAS registry number is 17347-95-4. The IUPAC name is dilithium, hexafluorosilicon(2-).

What is the CAS number of Lithium hexafluorosilicate?

The CAS registry number of Lithium hexafluorosilicate is 17347-95-4.

What is the molecular formula and weight of Lithium hexafluorosilicate?

The molecular formula of Lithium hexafluorosilicate is F6Li2Si and its molar mass is 155.96 g/mol.

What is Lithium hexafluorosilicate used for?

Known uses and roles of Lithium hexafluorosilicate include battery materials in electronics and semiconductors.

Is Lithium hexafluorosilicate hazardous?

Lithium hexafluorosilicate carries the GHS signal word "Warning". Main hazards: harmful if swallowed. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Lithium hexafluorosilicate?

Lithium hexafluorosilicate is usually classified under HS code 282690 (Fluorides, fluorosilicates, fluoroaluminates and other complex fluorine salts, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Lithium hexafluorosilicate?

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What is the price of Lithium hexafluorosilicate?

Suppliers quote Lithium hexafluorosilicate on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Lithium hexafluorosilicate

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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