Potassium sulfateCAS: 7778-80-5
MF: K2SO4
MW: 174.26
A standard laboratory reagent useful in an array of research applications.

Potassium sulfate (CAS 7778-80-5)

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Synonym: Dipotassium sulfate
Application: A standard laboratory reagent useful in an array of research applications
CAS Number: 7778-80-5
Purity: >99%
Molecular Weight: 174.26
Molecular Formula: K2SO4
* Refer to Certificate of Analysis for lot specific data (including water content).
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Potassium sulfate is a standard laboratory agent used in a variety of research applications. It is used to determine nitrogen and protein in food in the Kjeldahl method. It has been used to research electrostatic effects on pKa values of amino acid residues in the staphylococcal nuclease. When a buffer with a high zwitterionic salt concentration is used, Potassium sulfate can be used to improve protein separation via capillary zone electrophoresis. It has been reported to be useful to adsorb immune complexes on agarose derivative adsorbents.


References

1. Bushey, M.M., et al. 1989. J. Chromatogr. 480: 301-310. PMID: 2592485
2. Lehrer, S.S., et al. 1998. J. Struct. Biol. 122: 176-179. PMID: 9724618
3. Thompson, M., et al. 2002. Analyst. 127: 1666-1668. PMID: 12537377
4. Lee, K.K., et al. 2002. Biochemistry. 41: 5656-5667. PMID: 11969427

Appearance :
Powder or granules
Physical State :
Solid
Solubility :
Soluble in water (120.48 mg/ml at 25° C), and glycerol (13.33 mg/ml). Insoluble in alcohol, acetate, and carbon disulfide.
Storage :
Store at room temperature
Melting Point :
1069° C (lit.)
Boiling Point :
1689° C (lit.)
Density :
2.66 g/cm3 at 20° C
Refractive Index :
n20D 1.50
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
WGK Germany :
1
RTECS :
TT5900000
PubChem CID :
24507
Merck Index :
14: 7674
MDL Number :
MFCD00011388
EC Number :
231-915-5
SMILES :
[O-]S(=O)(=O)[O-].[K+].[K+]

Download SDS (MSDS)

Certificate of Analysis

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