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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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SDS & Certificate of Analysis

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 :

n²⁰_D 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+]

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Certificate of Analysis

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Potassium sulfate (CAS 7778-80-5)

QUICK LINKS

References

Download SDS (MSDS)

Certificate of Analysis

Potassium sulfate (CAS 7778-80-5)

QUICK LINKS

References

Download SDS (MSDS)

Certificate of Analysis

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