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798592

Sodium sulfate

anhydrous, granular, free-flowing, Redi-Dri, ACS reagent, ≥99%

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500 g

Available to ship onAugust 05, 2026fromMILWAUKEE

$85.40
$72.59
1 kg

Available to ship onAugust 05, 2026fromMILWAUKEE

$135.00
2.5 kg

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$267.00
5 kg

Available to ship onAugust 05, 2026fromMILWAUKEE

$389.00
12 kg

Estimated to ship TODAYfromMILWAUKEE

$569.00

About This Item

Linear Formula:
Na2SO4
CAS Number:
Molecular Weight:
142.04
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
231-820-9
MDL number:
Assay:
≥99%
Grade:
ACS reagent, anhydrous
Form:
granular, powder

$72.59

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Quality Segment

grade

ACS reagent, anhydrous

product line

Redi-Dri

assay

≥99%

form

granular, powder

quality

free-flowing

impurities

≤0.01% insolubles, ≤5 ppm N compounds

loss

≤0.5% loss on ignition

pH

5.2-9.2 (25 °C, 5%)

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: ≤0.01%, Fe: ≤0.001%, K: ≤0.01%, Mg: ≤0.005%, heavy metals: ≤5 ppm (by ICP-OES)

storage temp.

room temp

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

General description

Sodium sulfate is an inorganic salt that is commonly used as a reagent as well as a catalyst in organic synthesis. Additionally, it is also used as a drying agent in organic synthesis due to its affinity for water and compatibility with most organic compounds. During the work-up, an organic phase is treated with anhydrous sodium sulfate for the removal of traces of water.

Application

Sodium sulfite can be used in aqueous two-phase partitioning systems along with polyethylene glycol for the purification of biomolecules.

Features and Benefits

  • Increased efficiency – Eliminates time and effort of loosening hardened powders      
  • Safety – Eliminates tools of force used to break up clumps
  • Ecology – Reduces waste as it does not stick to the packaging
  • Economy – Faster preparation and solvation increase productivity and reduce costs      
  • Assured Quality – Excellent, expert-tested quality with no anti-caking agents     
  • Flexible volumes – Available from research amounts to scale-up quantities

Legal Information

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

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1 of 1

This Item
13464746363106645
description

anhydrous, granular, free-flowing, Redi-Dri, ACS reagent, ≥99%

description

puriss., meets analytical specification of Ph. Eur., BP, USP, anhydrous, 99.0-100.5% (calc. to the dried substance)

description

anhydrous, free-flowing, Redi-Dri, ACS reagent, ≥99%

description

anhydrous, fine powder, EMPROVE® ESSENTIAL, Ph. Eur., BP, JPE, USP

form

granular, powder

form

crystalline

form

powder

form

fine powder

assay

≥99%

assay

99.0-100.5% (calc. to the dried substance)

assay

≥99%

assay

-

Quality Level

200

Quality Level

200

Quality Level

100

Quality Level

500

grade

ACS reagent, anhydrous

grade

-

grade

ACS reagent, anhydrous

grade

-

impurities

≤0.01% insolubles, ≤5 ppm N compounds

impurities

acidity or alkalinity, complies, residual solvents, complies, ≤0.001% heavy metals (as Pb), ≤0.04% free alkali (as NaOH), ≤0.05% free acid (as H2SO4)

impurities

≤0.01% insolubles, ≤5 ppm N compounds

impurities

-

pH

5.2-9.2 (25 °C, 5%)

pH

5.2-8 (20 °C, 50 g/L)

pH

5.2-9.2 (25 °C, 5%)

pH

5.2-8.0 (20 °C, 50 g/L in H2O)


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Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable



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