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Sigma-Aldrich

Sodium sulfate decahydrate

puriss. p.a., crystallized, ≥99.0% (calc. based on dry substance, T)

Synonym(s):

Glauber’s salt

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About This Item

Linear Formula:
Na2SO4 · 10H2O
CAS Number:
7727-73-3
Molecular Weight:
322.20
EC Number:
231-820-9
MDL number:
MFCD00149189
UNSPSC Code:
12352302
PubChem Substance ID:
329763671
NACRES:
NA.21

grade

puriss. p.a.

Quality Level

200

Assay

≥99.0% (calc. based on dry substance, T)

form

crystals

quality

crystallized

impurities

≤0.0005% total nitrogen (N)

loss

53-57% loss on drying, 130 °C

pH

5.0-8.0 (25 °C, 50 mg/mL in H2O)

density

1.46 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤10 mg/kg
phosphate (PO43-): ≤10 mg/kg

cation traces

Ca: ≤20 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤20 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

SMILES string

O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[O-]S([O-])(=O)=O

InChI

1S/2Na.H2O4S.10H2O/c;;1-5(2,3)4;;;;;;;;;;/h;;(H2,1,2,3,4);10*1H2/q2*+1;;;;;;;;;;;/p-2

InChI key

RSIJVJUOQBWMIM-UHFFFAOYSA-L

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General description

Sodium sulfate decahydrate (Glauber′s salt, mirabilite, Na2SO4·10H2O) is the decahydrate salt of sodium sulfate. Its crystal structure has been investigated by single-crystal neutron diffraction studies. Its crystallization enthalpy has been evaluated. It can be synthesized by reacting MnSO4, thiophene-2,5-dicarboxylic acid and sodium glutamate.

Application


  • Nanoscale Stabilization Mechanism of Sodium Sulfate Decahydrate at Polyelectrolyte Interfaces: Discusses the stabilization mechanisms at the nanoscale, providing insights into sodium sulfate decahydrate′s applications in polyelectrolyte-enhanced processes, relevant in materials science and engineering (Akamo et al., 2024).

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Hydrothermal Synthesis and Crystal Structure of A Special Sodium Sulfate Decahydrate (Na2SO4?10H2O).
Zhang L and He YX.
Asian Journal of Chemistry, 26(12) (2014)
Thermodynamics of crystallization of sodium sulfate decahydrate in H2O-NaCl-Na2SO4: application to Na2SO4?10H2O-based latent heat storage materials.
Marliacy P, et al.
Thermochimica Acta, 344(1), 85-94 (2000)
Crystal structures of sodium sulfate decahydrate (Glauber's salt) and sodium tetraborate decahydrate (borax). Redetermination by neutron diffraction.
Levy HA and Lisensky GC.
Acta Crystallographica Section B, Structural Science, Crystal Engineering and Materials, 34(12), 3502-3510 (1978)
Clément Cartier et al.
Water research, 47(2), 661-671 (2012-11-24)
Release of lead from 80% partially replaced service lines was compared to full lead service lines using harvested-stabilized lead pipes and field brass connectors. After more than a year of stabilization, lead release was consistent with field samples. Over the
Min-Jie Cao et al.
The Plant journal : for cell and molecular biology, 73(4), 607-616 (2012-10-26)
Plants play a prominent role as sulfur reducers in the global sulfur cycle. Sulfate, the major form of inorganic sulfur utilized by plants, is absorbed and transported by specific sulfate transporters into plastids, especially chloroplasts, where it is reduced and
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