POTASSIUM DISULFATE FOR ANALYSIS EMSURE (C005B-080287)

Linkage

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

Analysis Note

Assay (acidimetric, as K₂S₂O₇): 97.5 - 100.0 %
Acidity (as H₂SO₄): 37.5 - 38.6 %
Insoluble and by ammoniumhydroxide precipitated matter: ≤ 0.01 %
Chloride (Cl): ≤ 0.0005 %
Phosphate (PO₄): ≤ 0.001 %
Total nitrogen (N): ≤ 0.002 %
Heavy metals (as Pb): ≤ 0.001 %
Al (Aluminium): ≤ 0.001 %
As (Arsenic): ≤ 0.0005 %
Ca (Calcium): ≤ 0.002 %
Fe (Iron): ≤ 0.0005 %
Mg (Magnesium): ≤ 0.0005 %
Na (Sodium): ≤ 0.01 %
Water (H₂O): ≤ 2.5 %
Conforms ACS.

Legal Information

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

Molecular Weight: 254.32. Empirical Formula: K₂O₇S₂. grade: ACS reagent. Quality Level: 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. 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. 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. Pictograms: GHS05,GHS06. Signal Word: Danger. Hazard Statements: H314 - H330. Precautionary Statements: P260 - P271 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338. Hazard Classifications: Acute Tox. 2 Inhalation - Eye Dam. 1 - Skin Corr. 1A. Storage Class Code: 6.1B - Non-combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials. WGK: WGK 3.