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Sodium sulfate

Name: Sodium sulfate
Brand: SIAL

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

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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:

329768661

UNSPSC Code:

12352302

EC Number:

231-820-9

MDL number:

MFCD00003504

Assay:

≥99%

Grade:

ACS reagent, anhydrous

Form:

granular, powder

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Properties

Quality Segment

200

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 (PO₄^3-): ≤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

Description

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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This Item	S5640	71963	204447
Sigma-Aldrich 798592 Sodium sulfate	Sigma-Aldrich S5640 Sodium sulfate	Sigma-Aldrich 71963 Sodium sulfate	Sigma-Aldrich 204447 Sodium sulfate
description anhydrous, granular, free-flowing, Redi-Dri^™, ACS reagent, ≥99%	description ≥99.0%, suitable for plant cell culture	description tested according to Ph. Eur., anhydrous	description ≥99.99% trace metals basis
form powder, granular	form powder	form crystalline	form powder
assay ≥99%	assay ≥99.0%	assay 99.5% dry basis	assay ≥99.99% trace metals basis
Quality Level 200	Quality Level 200	Quality Level 100	Quality Level 200
grade anhydrous, ACS reagent	grade -	grade anhydrous	grade -
density 2.68 g/mL at 25 °C (lit.)	density 2.68 g/mL at 25 °C (lit.)	density 2.68 g/mL at 25 °C (lit.)	density 2.68 g/mL at 25 °C (lit.)
impurities ≤5 ppm N compounds, ≤0.01% insolubles	impurities -	impurities -	impurities ≤100.0 ppm Trace Metal Analysis

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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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