Cat Number: API7778805

Potassium Sulfate

CAS Number

7778-80-5

Description

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.

MolecularWeight

174.259

MolecularFormula

K2O4S

SMILEs

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

Appearance

Powder or granules

Solubility

Soluble in water (120.48 mg/ml at 25℃), and glycerol (13.33 mg/ml). Insoluble in alcohol, acetate, and carbon disulfide.

Storage

Store at room temperature

MeltingPoint

1067℃

BoilingPoint

1689℃

Density

2.66 g/cm³ at 20℃

FlashPoint

1689℃

PreparationUse

an osmotic laxative used to cleanse the colon before a colonoscopy.

QualitySpecification

EP/JP

Standard

EP/JP

HOURS

Daily: 9.30 AM–6.00 PM
Sunday : 9.30 AM–1.00 PM
Holidays: Closed

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