1.05152

Potassium sulfate

99.999 Suprapur^®

• Synonym(s): Potassium sulfate, Potassium pyrosulfate
• Empirical Formula (Hill Notation): K₂O₄S
• CAS Number: 7778-80-5
• Molecular Weight: 174.26
• MDL number: MFCD00011388
• UNSPSC Code: 12352302
• EC Index Number: 231-915-5
• NACRES: NB.21

Properties

• grade: for inorganic trace analysis
• Quality Level: 100
• Assay: 99.999%
• form: solid
• potency: 6600 mg/kg LD₅₀, oral (Rat)
• pH: 5.5-8.5 (20 °C, 50 g/L in H₂O)
• bp: 1689 °C/1013 hPa
• mp: 1069 °C
• solubility: 111 g/L
• density: 2.66 g/cm³ at 20 °C
• bulk density: 800 kg/m³
• storage temp.: 2-30°C
• InChI: 1S/2K.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2
• InChI key: OTYBMLCTZGSZBG-UHFFFAOYSA-L

Description

Application

• Effect of salt modulators on the elution behavior of insulin and the separation of product-related impurities in reversed-phase chromatography.: The study examines how potassium sulfate and other salts affect the chromatography process, specifically focusing on insulin purification. The results are crucial for optimizing chromatographic methods in pharmaceutical production (Koch et al., 2023).

Analysis Note

Purity (metallic): ≥ 99.999 %
Assay (alkalimetric): ≥ 99.0
Chloride (Cl): ≤ 5 ppm
Total nitrogen (N): ≤ 5.0 ppm
Al (Aluminium): ≤ 0.050 ppm
Ba (Barium): ≤ 1.0 ppm
Bi (Bismuth): ≤ 0.01 ppm
Ca (Calcium): ≤ 0.10 ppm
Cd (Cadmium): ≤ 0.005 ppm
Ce (Cerium): ≤ 0.020 ppm
Co (Cobalt): ≤ 0.005 ppm
Cr (Chromium): ≤ 0.010 ppm
Cu (Copper): ≤ 0.020 ppm
Eu (Europium): ≤ 0.010 ppm
Fe (Iron): ≤ 0.050 ppm
Hg (Mercury): ≤ 0.05 ppm
La (Lanthanum): ≤ 0.010 ppm
Li (Lithium): ≤ 0.2 ppm
Mg (Magnesium): ≤ 0.10 ppm
Mn (Manganese): ≤ 0.020 ppm
Na (Sodium): ≤ 5.0 ppm
Ni (Nickel): ≤ 0.020 ppm
Pb (Lead): ≤ 0.050 ppm
Sc (Scandium): ≤ 0.010 ppm
Sm (Samarium): ≤ 0.010 ppm
Sr (Strontium): ≤ 0.10 ppm
Tl (Thallium): ≤ 0.01 ppm
Y (Yttrium): ≤ 0.010 ppm
Yb (Ytterbium): ≤ 0.010 ppm
Zn (Zinc): ≤ 0.050 ppm

Legal Information

SUPRAPUR is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable