1.05107

Kaliumdisulfat (Kaliumpyrosulfat)

for analysis EMSURE^® ACS

• Synonym(e): Kaliumdisulfat (Kaliumpyrosulfat)
• Empirische Formel (Hill-System): K₂O₇S₂
• CAS-Nummer: 7790-62-7
• Molekulargewicht: 254.32
• UNSPSC Code: 12352302
• EC Index Number: 232-216-8
• NACRES: NA.21
• MDL number: MFCD00011385
• Assay: 97.5-100.0% (K₂S₂O₇ basis, acidimetric)
• Grade: ACS reagent
• Form: solid
• Solubility: water: soluble (ca.25.4 g/l at 20 °C (68 °F))

Eigenschaften

• grade: ACS reagent
• Quality Segment: 300
• product line: EMSURE^®
• assay: 97.5-100.0% (K₂S₂O₇ basis, acidimetric)
• form: solid
• impurities: ≤0.01% Insoluble and by ammoniumhydroxide precipitated matter, ≤2.5% Water, 37.5-38.6% Acidity (as H₂SO₄)
• pH: 0.8 (20 °C, 50 g/L in H₂O)
• mp: 325 °C
• solubility: water: soluble (ca.25.4 g/l at 20 °C (68 °F))
• bulk density: 830 kg/m³
• anion traces: chloride (Cl^-): ≤0.0005%, phosphate (PO₄^3-): ≤0.001%
• cation traces: Al: ≤0.001%, As: ≤0.0005%, Ca: ≤0.002%, Fe: ≤0.0005%, Mg: ≤0.0005%, N: ≤0.002%, Na: ≤0.01%, heavy metals (as Pb): ≤0.001%
• storage temp.: no temp limit
• SMILES string: [K+].[K+].[S](=O)(=O)([O-])O[S](=O)(=O)[O-]
• InChI: 1S/2K.H2O7S2/c;;1-8(2,3)7-9(4,5)6/h;;(H,1,2,3)(H,4,5,6)/q2*+1;/p-2
• InChI key: KAQHZJVQFBJKCK-UHFFFAOYSA-L

Beschreibung

Analysis Note

Gehalt (acidimetrisch, als K₂S₂O₇): 97,5 - 100,0 %
Acidität (als H₂SO₄): 37,5 - 38,6 %
Unlösliche und durch Ammoniumhydroxid ausgefällte Anteile: ≤ 0,01 %
Chlorid (Cl): ≤ 0,0005 %
Phosphat (PO₄): ≤ 0,001 %
Gesamtstickstoff (N): ≤ 0,002 %
Schwermetalle (als Pb): ≤ 0,001 %
Al (Aluminium): ≤ 0,001 %
As (Arsen): ≤ 0,0005 %
Ca (Calcium): ≤ 0,002 %
Fe (Eisen): ≤ 0,0005 %
Mg (Magnesium): ≤ 0,0005 %
Na (Natrium): ≤ 0,01 %
Wasser (H₂O): ≤ 2,5 %
Entspricht ACS.

Other Notes

Ersetzt: PX1581; PX1581-1; PX1581-3; PX1581-20; PX1581-5W; PX1581-5

Legal Information

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

Sicherheitshinweise

• Piktogramme: GHS06,GHS05
• Signalwort: Danger
• Gefahrencodes: H314,H331
• Sicherheitshinweise: P260 - P271 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 3 Inhalation - Eye Dam. 1 - Skin Corr. 1A
• Lagerklasse: 6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• WGK: WGK 1