توضیحات

آمونيوم سولفيد محلول 1 ليتر كد 105442 كمپاني مرك آلمان

1.05442 Supelco

Ammonium sulfide solution

GR for analysis

Analysis Note

Assay (as (NH₄)₂S from sulphide): ≥ 20 %
Chloride (Cl): ≤ 0.05 %
Ca (Calcium): ≤ 0.003 %
Cu (Copper): ≤ 0.0005 %
Fe (Iron): ≤ 0.0005 %
K (Potassium): ≤ 0.001 %
Mg (Magnesium): ≤ 0.0005 %
Na (Sodium): ≤ 0.005 %
Pb (Lead): ≤ 0.0005 %
Residue on ignition (800 °C as sulfate): ≤ 0.05 %