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238597

Sodium sulfate

Name: Sodium sulfate
Brand: SIGALD

ACS reagent, ≥99.0%, anhydrous, powder

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About This Item

Linear Formula:

Na₂SO₄

CAS Number:

7757-82-6

Molecular Weight:

142.04

NACRES:

NA.21

PubChem Substance ID:

329752510

UNSPSC Code:

12352302

EC Number:

231-820-9

MDL number:

MFCD00003504

Assay:

≥99.0%

Grade:

ACS reagent, anhydrous

Form:

powder

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Properties

Quality Segment

200

grade

ACS reagent, anhydrous

assay

≥99.0%

form

powder

impurities

≤0.01% insolubles, ≤5 ppm N compounds

loss

≤0.5% loss on ignition

pH

5.2-9.2 (25 °C, 5% in water), 5.2-9.2

mp

884 °C (lit.)

density

2.68 g/mL at 25 °C (lit.)

anion traces

chloride (Cl^-): ≤0.001%, phosphate (PO₄^3-): ≤0.001%

cation traces

Ca: ≤0.002%, Fe: ≤0.001%, K: ≤0.002%, Mg: ≤0.001%, heavy metals: ≤5 ppm (by ICP-OES)

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

Description

Application

Sodium sulfate can be used as a catalyst:

In the Suzuki-Miyaura cross-coupling reactions of aryl halides with arylboronic acids to synthesize biaryl compounds in the presence of PdCl₂.
For the aminolytic depolymerization of PET (polyethylene terephthalate) bottle waste.

It can also be used as an additive in the Pd-catalyzed Sonogashira reaction of terminal alkynes with aryl halides to synthesize polyfunctional alkynes.

Other Notes

Go to Redi-Dri^™ Product Listing 746363

Legal Information

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

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Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c