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Sigma-Aldrich

Sodium sulfate

ACS reagent, ≥99.0%, anhydrous, granular

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Linear Formula:
Na2SO4
CAS Number:
Molecular Weight:
142.04
EC Number:
MDL number:
PubChem Substance ID:

grade

ACS reagent
anhydrous

Assay

≥99.0%

form

granular

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

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Application

Sodium sulfate (anhydrous) can be used as a catalyst in the synthesis of 1,3-diaryl-2-propen-1-one oxime by condensation of 1,3-diaryl-2-propen-1-one with hydroxylamine hydrochloride in ethanol.
NaSO4 can also be used as a drying agent in organic synthesis for the removal of traces of water from organic extracts. It is used for drying almost all compounds including fatty acids, aldehydes, ketones, and alkyl and aryl halogenides.

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


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Synthesis of 3-and 5-Alkyl-6-alkyl (aryl) tetrahydropyran-2, 4-diones by the Condensation of ?-Oxo Acid Esters with Aldehydes and Ketones
Lokot, IP, et al.
Chemistry of Heterocyclic Compounds, 37(6), 707-714 (2001)
Improved Synthesis of 1, 3-Diaryl-2-propen-1-one Oxime in the Presence of Anhydrous Sodium Sulfate
Xu Xiaoya, et al.
Chin. J. Chem., 29(12), 2781-2784 (2011)
Chromatographic characterization of the crambe (Crambe abyssinica Hochst) oil and modeling of some parameters for its conversion in biodiesel
Silveira EV, et al.
Industrial Crops and Products, 97, 545-551 (2017)
Eagleson M.
Concise Encyclopedia Chemistry, 405-405 (1994)
The use of sodium sulfate as the globulin precipitant in the determination of proteins in blood.
Howe PE.
The Journal of Biological Chemistry, 49(1), 93-107 (1921)

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