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204447

Sigma-Aldrich

Sodium sulfate

≥99.99% trace metals basis

Synonym(s):

Bisodium sulfate, Dibasic sodium sulfate, Disodium sulfate

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About This Item

Linear Formula:
Na2SO4
CAS Number:
7757-82-6
Molecular Weight:
142.04
EC Number:
231-820-9
MDL number:
MFCD00003504
UNSPSC Code:
12352302
eCl@ss:
38030405
PubChem Substance ID:
24852268
NACRES:
NA.23

Quality Level

200

Assay

≥99.99% trace metals basis

form

powder

impurities

≤100.0 ppm Trace Metal Analysis

mp

884 °C (lit.)

solubility

ethanol: insoluble(lit.)

density

2.68 g/mL at 25 °C (lit.)

SMILES string

[Na+].[Na+].[O-]S([O-])(=O)=O

InChI

1S/2Na.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2

InChI key

PMZURENOXWZQFD-UHFFFAOYSA-L

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Application

Sodium sulfate can be used to prepare aqueous solutions for various electrochemical reactions such as direct nitrate electroreduction and to study carrier transfer in Mn-oxide/Nb: SrTiO3 photoelectrode. It can also be used as a solvent to fabricate heat storage materials such as silica gel–sodium sulfate composites.

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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