1.03965

Iron(II) sulfate heptahydrate

for analysis EMSURE^® ACS,ISO,Reag. Ph Eur

• Synonym(s): Iron(II) sulfate heptahydrate, Iron
• Empirical Formula (Hill Notation): FeO₄S · 7H₂O
• CAS Number: 7782-63-0
• Molecular Weight: 278.01
• MDL number: MFCD00149719
• UNSPSC Code: 12352302
• EC Index Number: 231-753-5
• NACRES: NA.21

Properties

• grade: ACS reagent
• Quality Level: 300
• Agency: reag. ISO; reag. Ph. Eur.
• product line: EMSURE^®
• Assay: 99.5-102.0% (manganometric)
• form: solid
• potency: 319 mg/kg LD₅₀, oral (Rat)
• impurities: ≤0.01% Insoluble matter
• pH: 3-4 (20 °C, 50 g/L in H₂O)
• mp: >60 °C (Elimination of water of crystallisation)
• density: 1.89 g/cm³ at 20 °C
• bulk density: 600 kg/m³
• anion traces: chloride (Cl^-): ≤0.0005%; phosphate (PO₄^3-): ≤0.001%
• cation traces: As: ≤0.0002%; Ca: ≤0.005%; Co: ≤0.0025%; Cr: ≤0.0050%; Cu: ≤0.001%; Fe³⁺: ≤0.02%; K: ≤0.002%; Mg: ≤0.002%; Mn: ≤0.05%; N: ≤0.001%; Na: ≤0.02%; Ni: ≤0.0050%; Pb: ≤0.0005%; Zn: ≤0.0050%; heavy metals (as Pb): ≤0.005%
• storage temp.: 15-25°C
• InChI: 1S/Fe.H2O4S.7H2O/c;1-5(2,3)4;;;;;;;/h;(H2,1,2,3,4);7*1H2/q+2;;;;;;;;/p-2
• InChI key: SURQXAFEQWPFPV-UHFFFAOYSA-L

Description

Linkage

Replaces: FX0260-1

Analysis Note

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 %
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 %
Co (Cobalt): ≤ 0.0025 %
Substance not precipitated by ammonium hydroxide: ≤ 0.1 %
Corresponds to ACS,ISO,Reag. Ph Eur

Legal Information

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

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Statements: H302 - H315 - H319
• Precautionary Statements: P264 - P270 - P280 - P301 + P312 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2
• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable