Iron(II) sulfate heptahydrate

FeO₄S · 7H₂O

278.01

MFCD00149719

231-753-5

Replaces: FX0260-1

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): ≤ 0.005 %
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): ≤ 0.005 %
Pb (Lead): ≤ 0.0005 %
Zn (Zinc): ≤ 0.005 %
Substance not precipitated by ammonium hydroxide: ≤ 0.1 %
Corresponds to ACS,ISO,Reag. Ph Eur

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

300

ACS reagent

reag. ISO
reag. Ph. Eur.

99.5-102.0% (manganometric)

solid

319 mg/kg LD₅₀, oral (Rat)

3-4 (20 ℃, 50 g/L in H₂O)

>60 ℃ (Elimination of water of crystallisation)

1.89 g/cm³ at 20 ℃

600 kg/m³

chloride (Cl^-): ≤0.0005%
phosphate (PO₄^3-): ≤0.001%

As: ≤ 0.0002%
Ca: ≤ 0.005%
Cr: ≤ 0.005%
Cu: ≤ 0.001%
Fe³⁺: ≤ 0.02%
K: ≤ 0.002%
Mg: ≤ 0.002%
Mn: ≤ 0.05%
N: ≤ 0.001%
Na: ≤ 0.02%
Ni: ≤ 0.005%
Pb: ≤ 0.0005%
Zn: ≤ 0.005%
heavy metals (as Pb): ≤ 0.005%

15-25℃

1S/Fe.H2O4S.7H2O/c;1-5(2,3)4;;;;;;;/h;(H2,1,2,3,4);7*1H2/q+2;;;;;;;;/p-2

SURQXAFEQWPFPV-UHFFFAOYSA-L

GHS07

Warning

H302 - H315 - H319

P264 - P270 - P280 - P301 + P312 - P302 + P352 - P305 + P351 + P338

Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2

13 - Non Combustible Solids

WGK 1