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931969

Sigma-Aldrich

Lithium perchlorate

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anhydrous, ≥99.9% trace metals basis

Synonyme(s) :

Perchloric acid lithium salt

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About This Item

Formule linéaire :
LiClO4
Numéro CAS:
Poids moléculaire :
106.39
Numéro MDL:
Code UNSPSC :
12352302
Nomenclature NACRES :
NA.23

Qualité

anhydrous
battery grade

Niveau de qualité

Pureté

≥99.9% trace metals basis

Forme

powder

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Impuretés

≤1000 ppm (trace metals analysis)

pH

6.0-7.5 (25 °C, 5%, aq.sol.)

Pf

236 °C (lit.)

Solubilité

H2O: 59.8 g/dL at 25 °C

Traces d'anions

chloride (Cl-): ≤30 ppm
sulfate (SO42-): ≤10 ppm

Traces de cations

Fe: ≤5 ppm
heavy metals: ≤10 ppm

Application(s)

battery manufacturing

Autre catégorie plus écologique

Chaîne SMILES 

[Li+].[O-]Cl(=O)(=O)=O

InChI

1S/ClHO4.Li/c2-1(3,4)5;/h(H,2,3,4,5);/q;+1/p-1

Clé InChI

MHCFAGZWMAWTNR-UHFFFAOYSA-M

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Description générale

Anhydrous lithium perchlorate is a white-to-colorless crystalline salt. It is hygroscopic and deliquescent and usually stored under inert atmosphere. It is highly soluble in water and soluble in a variety of organic solvents including alcohols, acetone, acetonitrile, ethyl acetate, ethers, carbonates, and other polar organic solvents. Lithium perchlorate is a strong oxidizing agent.
Industrially, lithium perchlorate is manufactured in several ways. Most commonly, it is prepared from sodium perchlorate through a metathesis reaction with lithium chloride or lithium carbonate. Lithium perchlorate can also be prepared by direct electrochemical oxidation of lithium chloride or by reacting lithium carbonate with perchloric acid. The hydrate can be dried either by highly controlled heating or by displacing water with volatile amines, which are removed by drying under vacuum.
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Application

The primary application of lithium perchlorate is as an electrolytic salt in lithium-ion batteries. Many of the early, now-famous reports of lithium batteries used lithium perchlorate dissolved in polar organics as the electrolyte and the salt remains popular because of its high solubility, electrochemical stability, and low cost. In the search for solid electrolytes, lithium perchlorate (5-12 wt%) is often added to polyethylene oxide (PEO) and composited with ceramic nanoparticles like LLZO and LATP .
Researchers also use lithium perchlorate as an electrolytic salt in aqueous media when testing electrocatalysts. For example, recent experiments improving the electrochemical reduction of nitrogen over TiO2 nanoparticles or gold nanoparticles use aqueous lithium perchlorate as the electrolyte.

Conditionnement

100g in poly bottle
500g in poly bottle

Pictogrammes

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Mention d'avertissement

Danger

Mentions de danger

Classification des risques

Acute Tox. 4 Oral - Eye Dam. 1 - Ox. Sol. 2 - Skin Corr. 1A - STOT SE 3

Organes cibles

Respiratory system

Code de la classe de stockage

5.1A - Strongly oxidizing hazardous materials

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable


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Certificats d'analyse (COA)

Lot/Batch Number

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Consulter la Bibliothèque de documents

Electrochemical and In Situ X?Ray Diffraction Studies of Lithium Intercalation in Lix CoO2
Reimers, J.N., et al.
Journal of the Electrochemical Society, 139, 2091-2091 (1992)
The spinel phase of lithium manganese oxide (LiMn2O4) as a cathode in secondary lithium cells
Tarascon, J.M., et al.
Journal of the Electrochemical Society, 138, 2859-2864 (1991)

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