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Merck

403008

Sodium sulfate decahydrate

ACS reagent, ≥99.0%

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
NACRES:
NB.24
PubChem Substance ID:
329755975
UNSPSC Code:
12352302
EC Number:
231-820-9
MDL number:
MFCD00149189
Assay:
≥99.0%
Grade:
ACS reagent
Form:
crystals
Solubility:
water: soluble 322.2 g/L at 20 °C

Key Documents

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InChI key

RSIJVJUOQBWMIM-UHFFFAOYSA-L

InChI

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

SMILES string

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

grade

ACS reagent

assay

≥99.0%

form

crystals

impurities

≤0.01% insolubles

pH

5.2-9.2 (25 °C, 5%)

mp

32.4 °C

solubility

water: soluble 322.2 g/L at 20 °C

density

1.46 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤5 ppm, phosphate (PO43-): ≤5 ppm

cation traces

Ca: ≤0.005%, Fe: ≤5 ppm, K: ≤0.005%, Mg: ≤0.003%, heavy metals (as Pb): ≤3 ppm

Quality Level

200

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General description

Sodium sulfate decahydrate is also called as Glauber′s salt. It shows promising characteristics as phase change material (PCM) due to its high solar thermal energy storage ability.

Application

Sodium sulfate decahydrate may be used to deepen the color while dyeing cotton fabrics.6

Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
MKCZ9687
MKCX2638
MKCV8290
0000224974
0000224974

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Curbing global warming with phase change materials for energy storage.
Anisur MR, et al.
Renewable and Sustainable Energy Reviews, 18, 23-30 (2013)
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, 34(12), 3502-3510 (1978)
Enhancement of solar thermal energy storage performance using sodium thiosulfate pentahydrate of a conventional solar water-heating system.
Canbazoglu S, et al.
Energy and Buildings, 37(3), 235-242 (2005)
Jia-ying Zhu et al.
Zhongguo wei zhong bing ji jiu yi xue = Chinese critical care medicine = Zhongguo weizhongbing jijiuyixue, 24(6), 346-348 (2012-10-02)
To investigate the effect of nasal tube feeding of rhubarb solution and umbilical compress of Glauber's salt for purgation in the treatment of patients with severe acute organophosphorus pesticide poisoning (AOPP). A retrospective study was conducted. Eighty patients with severe
Shijie Liu et al.
The Journal of biological chemistry, 288(13), 8794-8803 (2013-02-09)
Lgr4/Gpr48 is one of the newly identified R-spondins receptors and potentiates Wnt signaling, which regulates intestinal homeostasis. We used a hypomorphic mouse strain to determine the role of Lgr4 in intestinal inflammation and recovery. Intestinal inflammation was induced with dextran
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