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931950

Sigma-Aldrich

Sodium perchlorate

anhydrous, ≥99.9% trace metals basis

Synonym(s):

Sodium Perchlorate, Hyperchloric acid sodium salt

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About This Item

Empirical Formula (Hill Notation):
ClNaO4
CAS Number:
7601-89-0
Molecular Weight:
122.44
MDL number:
MFCD00003480
UNSPSC Code:
12352302
NACRES:
NA.23

grade

anhydrous
battery grade

Quality Level

100

Assay

≥99.9% trace metals basis

form

powder

impurities

≤1000 ppm (trace metals analysis)

pH

6.0-8.0 (25 °C, 5%, aq.sol.)

mp

482 °C

solubility

H2O: 209 g/dL at 15 °C

anion traces

chloride (Cl-): ≤30 ppm
sulfate (SO42-): ≤20 ppm

cation traces

Fe: ≤5 ppm
K: ≤500 ppm

application(s)

battery manufacturing

InChI

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

InChI key

BAZAXWOYCMUHIX-UHFFFAOYSA-M

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General description

Anhydrous sodium perchlorate is a white crystalline solid. It is hygroscopic and absorbs water to form its monohydrate. Anhydrous sodium perchlorate is highly soluble in water, and soluble in a range of polar organic solvents such as methanol, ethanol, acetone, carbonates (including ethylene carbonate, dimethyl carbonate, propylene carbonate, and diethyl carbonate), and ethers (including dimethoxyethane, tetrahydrofuran, and triethylene glycol dimethyl ether). It is insoluble in benzene, chloroform, and toluene.

Application

The major application of anhydrous sodium perchlorate is as an electrolyte in sodium-ion batteries. It is popular because of its solubility in ethers and carbonates, its wide electrochemical stability window (e.g. from 0 to 5 V vs Na+/Na in propylene carbonate, triglyme, or diethylcarbonate)[1], and its compatibility with a wide range of materials. It has been used in batteries with hard-carbon anodes[2], mesoporous carbon anodes[3], sodium cobalt oxide cathodes (NaxCoO2)[4], sodium vanadium oxide cathodes (NaxVO2)[5], titanium dioxide cathodes[6], and emerging materials like high-entropy layered oxide cathodes[7].

Packaging

10 g in glass bottle
25 g in glass bottle

Signal Word

Danger

Hazard Statements

H271,H302,H319,H373

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Ox. Sol. 1 - STOT RE 2

Target Organs

Thyroid

Storage Class Code

5.1A - Strongly oxidizing hazardous materials

WGK

WGK 1

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

PRTR

Class I Designated Chemical Substances

FSL

Group 1: Oxidizing solids
Perchlorates
Hazardous rank I
1st oxidizing solid

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

931950-10G:
931950-VAR:
931950-BULK:
931950-25G:

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Certificates of Analysis (COA)

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Electrochemical Na Insertion and Solid Electrolyte Interphase for Hard-Carbon Electrodes and Application to Na-Ion Batteries.
Komaba, S., et al.
Advances in Functional Materials, 21, 3859-3867 (2011)

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