Merck 1039650500 七水合硫酸亚铁，分析适用 (FeO₄S * 7H₂O, Plastic bottle 500g)

CAS number: 7782-63-0

EC index number: 026-003-00-7

EC number: 231-753-5

Grade: ACS,ISO,Reag. Ph Eur

Hill Formula: FeO₄S * 7H₂O

Chemical formula: FeSO₄ * 7H₂O

Molar Mass: 278.01 g/mol

Assay (manganometric): 99.5 - 102.0 %

Identity: passes test

Appearance of solution: passes test

Insoluble matter: ≤ 0.01 %

pH-value (5 %; water): 3.0 - 4.0

Chloride (Cl): ≤ 0.0005 %

Phosphate (PO₄): ≤ 0.001 %

Total nitrogen (N): ≤ 0.001 %

Heavy metals as Pb: ≤ 0.005 %

As (Arsenic): ≤ 0.0002 %

Ca (Calcium): ≤ 0.005 %

Cr (Chromium): ≤ 0.0050 %

Co (Cobalt): ≤ 0.0025 %

Cu (Copper): ≤ 0.001 %

Fe III (Iron III): ≤ 0.02 %

K (Potassium): ≤ 0.002 %

Mg (Magnesium): ≤ 0.002 %

Mn (Manganese): ≤ 0.05 %

Na (Sodium): ≤ 0.02 %

Ni (Nickel): ≤ 0.0050 %

Pb (Lead): ≤ 0.0005 %

Zn (Zinc): ≤ 0.0050 %

Substance not precipitated by ammonium hydroxide: ≤ 0.1 %

Corresponds to ACS,ISO,Reag. Ph Eur