Merck 1051071000 二硫酸钾, Emsure 分析适用 (K₂O₇S₂, 塑料瓶 1 kg)
制造商: Merck Model: 1051071000 - 报价要求
- 报价要求
Price (exclude VAT) 5,388,900 VND Price (include VAT) 5,927,790 VND
CAS number: 7790-62-7
EC number: 232-216-8
Hill Formula: K₂O₇S₂
Molar Mass: 254.33 g/mol
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 %
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