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Update to Avantor’s response to the coronavirus (COVID-19) pandemic

Potassium sulfate, anhydrous ≥99.0%, powder ACS

Supplier: E. Becker & Co. GmbH

0215256490 0215256491
IC15256490EA 160.33 USD InStock
IC15256490 IC15256491
Potassium sulfate, anhydrous ≥99.0%, powder ACS
Potassium sulphate
Soluble in water (1 g/8.3 mL at 25 °C; 1 g/4 mL boiling water) or glycerol (1 g/75 mL); insoluble in ethanol; the solubility in water is decreased in the presence of KCl or (NH4)2SO4 and is practically insoluble in a saturated solution of the latter.

Analytical applications include the Kjeldahl method for the determination of nitrogen and protein in foodstuffs. 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.

Soluble in water (1 g/8.3 ml at 25 °C; 1 g/4 ml boiling water) or glycerol (1 g/75 ml); insoluble in ethanol; the solubility in water is decreased in the presence of KCl or (NH₄)₂SO₄ and is practically insoluble in a saturated solution of the latter.


Formula: K₂SO₄
 MDL Number: MFCD00011388
CAS Number: 7778-80-5
https://qa.digitalassets.avantorsciences.com/adaptivemedia/rendition?id=afa6be23df8de4e9bbbec2f815e5cf73337e7bb8&vid=afa6be23df8de4e9bbbec2f815e5cf73337e7bb8&prid=web&clid=SAPDAM
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Specification Test Results
Assay ≥99,0% K2SO4
Heavy Metals Lead (as Pb): ≤5 ppm; Iron (Fe): ≤5 ppm
Insoluble Matter ≤0,01%
pH 5,5 - 8,5 (5% soln, 25 °C)
Chloride (Cl) ≤0,001%
Nitrogen Compounds (as N) ≤5 ppm
Calcium (Ca) ≤0,01%
Magnesium (Mg) ≤0,005%
Sodium (Na) ≤0,02%

 

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