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238597

Sigma-Aldrich

Sodium sulfate

ACS reagent, ≥99.0%, anhydrous, powder

Linear Formula:
Na2SO4
CAS Number:
Molecular Weight:
142.04
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

Quality Level

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 (PO43-): ≤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

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Related Categories

Packaging

12, 25 kg in fiber drum
1, 2.5, 5 kg in poly bottle
25, 500, 36×500 g in poly bottle

Legal Information

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

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

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Certificate of Origin

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