Sodium sulfate anhydrousFor use as an inert drying agent

Sodium sulfate anhydrous (CAS 7757-82-6)

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Synonym: Disodium sulfate; Disodium sulphate; Bisodium sulfate
Application: For use as an inert drying agent
CAS Number: 7757-82-6
Purity: ≥99%
Molecular Weight: 142.04
Molecular Formula: Na2SO4
* Refer to Certificate of Analysis for lot specific data (including water content).
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Sodium Sulfate, Anhydrous is chemically very stable, and is unreactive toward most oxidizing or reducing agents at normal temperatures. It is a neutral salt and will form aqueous solutions with a ph of ~7. Anhydrous sodium sulfate occurs in arid environments as the mineral thenardite; however the decahydrate (sc-203405) is the most abundant natural form and is derived from the mineral, mirabilite, often found in lake beds. Anhydrous sodium sulfate is used in the laboratory as an inert drying agent for removing traces of water from organic solutions. It is only effective below 30°C, but is fairly inert and can be used with a variety of materials.


References

1. Milne, J. 1947. J. Biol. Chem. 169: 595-599. PMID: 20259092
2. Alha, A.L. 1949. Ann Chir Gynaecol Fenn Suppl. 38: 6-17. PMID: 15394523
3. Cocchetto, D.M. and Levy, G. 1981. J Pharm Sci. 70: 331-333. PMID: 7264905
4. Oswald, I.D., et al. 2008. J. Am. Chem. Soc. 130: 17795-17800. PMID: 19053442
5. Nichols, M.D., et al. 2009. Biomaterials. 30: 5283-5291. PMID: 19615738

Appearance :
Powder
Physical State :
Solid
Solubility :
Soluble in water (162 mg/ml at 20° C), glycerol, and hydrogen iodide. Insoluble in alcohol.
Storage :
Desiccate at room temperature
Melting Point :
884° C
Boiling Point :
>1700° C (dec.)
Density :
2.68 g/cm3 at 25° C
Refractive Index :
n20D 1.48 (lit.)
Ki Data :
Helicobacter pylori beta-carbonic anhydrase : Ki= 0.57 mM; CA I: Ki= 63 mM (human); Astrosclerin-3: Ki= 76.3 mM (Astrosclera willeyana); CA II: Ki>200 mM (human); CA V: Ki= 680 mM (human)
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
WGK Germany :
1
RTECS :
WE1650000
PubChem CID :
24436
Merck Index :
14: 8680
MDL Number :
MFCD00003504
EC Number :
231-820-9
SMILES :
[O-]S(=O)(=O)[O-].[Na+].[Na+]

Download SDS (MSDS)

Certificate of Analysis

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Date published: 2015-09-28
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