POTASSIUM DISULFATE FOR ANALYSIS EMSURE

Code: 1051079050 D2-231

Analysis Note

Assay (acidimetric, as K2S2O7): 97.5 - 100.0 ¬idity (as H2SO4): 37.5 - 38.6 %Insoluble and by ammoniumhyd...


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Analysis Note

Assay (acidimetric, as K2S2O7): 97.5 - 100.0 ¬idity (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 Ê (Calcium): ≤ 0.002 þ (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

Linkage

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

Packaging

1, 5 kg in Plastic bottle

anion tracesphosphate (PO43-): ≤0.001%, chloride (Cl-): ≤0.0005%
assay97.5-100.0% (K2S2O7 basis, acidimetric)
bulk density830 kg/m3
cation tracesFe: ≤0.0005%, Na: ≤0.01%, Ca: ≤0.002%, Mg: ≤0.0005%, Al: ≤0.001%, heavy metals (as Pb): ≤0.001%, N: ≤0.002%, As: ≤0.0005%
formsolid
gradeACS reagent
impurities≤0.01% Insoluble and by ammoniumhydroxide precipitated matter, 37.5-38.6% Acidity (as H2SO4), ≤2.5% Water
InChI keyKAQHZJVQFBJKCK-UHFFFAOYSA-L
InChI1S/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
mp325 °C
pH0.8 (20 °C, 50 g/L in H2O)
product lineEMSURE®
Quality Level300
storage temp.no temp limit
Cas Number7790-62-7
Hazard Class8
Un Number2923
Pack GroupI
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