29935-35-1

Basic information

• Product Name: LITHIUM HEXAFLUOROARSENATE(V)
• Synonyms: hexafluoro-arsenate(1-lithium;LITHIUM HEXAFLUOROARSENATE;LITHIUM HEXAFLUOROARSENATE(V);Lithiumhexafluoroarsenate(V),99%;Lithiumhexafluoroarsenate(V)(99.9+%-As);Arsenate(1-), hexafluoro-, lithium;LITHIUM HEXAFLUOROARSENATE(V): 99.8%;Hexafluoroarsenate(V)·lithium
• CAS NO: 29935-35-1
• Molecular Formula: AsF₆*Li
• Molecular Weight: 195.85
• EINECS: 249-963-0
• Product Categories: Inorganics;Inorganic Fluorides;ArsenicMaterials Science;ElectrolytesMetal and Ceramic Science;Alternative Energy;Catalysis and Inorganic Chemistry;Chemical Synthesis;Lithium Salts;Salts;halometallate salts
• Mol File: 29935-35-1.mol
• Article Data: 3

Chemical Properties

• Melting Point: 349°C
• Appearance: white/Powder
• Water Solubility: Insoluble in water.
• Sensitive: Hygroscopic
• Stability: Stable. Incompatible with strong oxidizing agents.
• CAS DataBase Reference: LITHIUM HEXAFLUOROARSENATE(V)(CAS DataBase Reference)
• NIST Chemistry Reference: LITHIUM HEXAFLUOROARSENATE(V)(29935-35-1)
• EPA Substance Registry System: LITHIUM HEXAFLUOROARSENATE(V)(29935-35-1)

Safety Data

• Hazard Codes: T,N
• Statements: 23/25-50/53
• Safety Statements: 20/21-28-45-60-61
• RIDADR: UN 1557 6.1/PG 2
• WGK Germany: 3
• F: 10
• TSCA: T
• HazardClass: 6.1
• PackingGroup: II
• Hazardous Substances Data: 29935-35-1(Hazardous Substances Data)

Usage

Chemical Properties

white powder

Uses

Lithium hexafluoroarsenate(V) is a potential battery electrolyte material.

General Description

This product has been enhanced for energy efficiency.

InChI:InChI=1/AsF6.Li/c2-1(3,4,5,6)7;/q-1;+1

Upstream product

• 7784-36-3 arsenic pentafluoride 
• 7789-24-4 lithium fluoride 
• 7664-39-3 hydrogen fluoride 

Downstream Products

• 43023-95-6 rubidium hexafluoroarsenate 
• 7784-36-3 arsenic pentafluoride 
• 7789-24-4 lithium fluoride 
• 122874-46-8 Rh(tris(2-(diphenylphosphino)ethyl)phosphine)(trimethyl phosphite) hexafluoroarsenate 
• 122874-48-0 Rh(tris(2-(diphenylphosphino)ethyl)phosphine)(triethylphosphine) hexafluoroarsenate 
• 101348-59-8 Ni(II)(triphenyl phosphine)(tris(o-(dimethylarsino)phenyl)phosphine) hexafluoroarsenate 
• 99687-69-1 Co(P(CH₂CH₂P(C₆H₅)2)3)(P(CH₃)(OCH(CH₃)2)2)⁽¹⁺⁾*AsF₆^(1-) = {Co(P(CH₂CH₂P(C₆H₅)2)3)(P(CH₃)(OCH(CH₃)2)2)}AsF₆ 
• 99687-52-2 Co(P(CH₂CH₂P(C₆H₅)2)3)(P(C₆H₅)2(OCH₃))⁽¹⁺⁾*AsF₆^(1-) = {Co(P(CH₂CH₂P(C₆H₅)2)3)(P(C₆H₅)2(OCH₃))}AsF₆ 
• 99687-61-3 NiCl(P(CH₂CH₂P(C₆H₅)2)3)⁽¹⁺⁾*AsF₆^(1-) = {NiCl(P(CH₂CH₂P(C₆H₅)2)3)}AsF₆ 
• 99687-63-5 NiBr(P(CH₂CH₂P(C₆H₅)2)3)⁽¹⁺⁾*AsF₆^(1-) = {NiBr(P(CH₂CH₂P(C₆H₅)2)3)}AsF₆ 
• 99705-72-3 Co(P(CH₂CH₂P(C₆H₅)2)3)(P(CH₃)2(C₆H₅))⁽¹⁺⁾*AsF₆^(1-) = {Co(P(CH₂CH₂P(C₆H₅)2)3)(P(CH₃)2(C₆H₅))}AsF₆ 
• 99687-56-6 Ni(P(CH₂CH₂P(C₆H₅)2)3)((P(OCH₂CH₃)3))⁽²⁺⁾*2AsF₆^(1-) = {Ni(P(CH₂CH₂P(C₆H₅)2)3)(P(OCH₂CH₃)3)}(AsF₆)2 
• 99687-54-4 Co(P(CH₂CH₂P(C₆H₅)2)3)(P(CH₂CH₃)3)⁽¹⁺⁾*AsF₆^(1-) = {Co(P(CH₂CH₂P(C₆H₅)2)3)(P(CH₂CH₃)3)}AsF₆ 

Relevant articles and documents

The First Step of the Oxidation of Elemental Sulfur: Crystal Structure of the Homopolyatomic Sulfur Radical Cation [S8].+

The oxidation of elemental sulfur in superacidic solutions and melts is one of the oldest topics in inorganic main group chemistry. Thus far, only three homopolyatomic sulfur cations ([S4]2+, [S8]2+, and [S19]2+) have been characterized crystallographically although ESR investigations have given evidence for the presence of at least two additional homopolyatomic sulfur radical cations in solution. Herein, the crystal structure of the hitherto unknown homopolyatomic sulfur radical cation [S8].+ is presented. The radical cation [S8].+ represents the first step of the oxidation of the S8 molecule present in elemental sulfur. It has a structure similar to the known structure of [S8]2+, but the transannular sulfur???sulfur contact is significantly elongated. Quantum-chemical calculations help in understanding its structure and support its presence in solution as a stable compound. The existence of [S8].+ is also in accord with previous ESR investigations.

Thermodynamic properties and decomposition of lithium hexafluoroarsenate, LiAsF6

The heat capacity of lithium hexafluoroarsenate is determined in the temperature range 50-750 K by adiabatic and differential scanning calorimetry techniques. The thermodynamic properties of LiAsF6 under standard conditions are evaluated: Cp0 (298.15 K)= 162.5 ± 0.3 J/(K mol), S0(298.15 K) = 173.4 ± 0.4 J/(K mol), Φ0(298.15 K) = 81.69 ± 0.20 J/(K mol), and H 0(298.15 K) - H0(0) = 27 340 ± 60 J/mol. The C p(T) curve is found to contain a lambda-type anomaly with a peak at 535.0 ± 0.5 K, which is due to the structural transformation from the low-temperature, rhombohedral phase to the high-temperature, cubic phase. The enthalpy and entropy of this transformation are 5.29 ± 0.27 kJ/mol and 10.30 ± 0.53 J/(K mol), respectively. The thermal decomposition of LiAsF6 is studied. It is found that LiAsF6 decomposes in the range 715-820 K. The heat of decomposition, determined in the range 765-820 K using a sealed crucible and equal to the internal energy change ΔU r(T), is 31.64 ± 0.08 kJ/mol.