Iron (II) Sulphate 7-Water

What is Iron (II) Sulphate 7-Water? Also known as Ferrous Sulphate or Iron (II) Sulphate Heptahydrate, it is a crystalline compound that consists of iron, sulphur, and water molecules. It is typically found in its heptahydrate form, meaning it contains seven water molecules per formula unit.

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Assay: >98.1%
Molecular Formula: FeSO4•7H2O
Molecular Weight: 278.01g/mol
Iron: 20.0%m/m
Appearance AT 20˚C: Damp green crystals
Form & order: Light green with a slight acidic odour
Moisture: 2.4 % m/m approx. in excess of water of crystallisation
Sulphur: 11.6%m/m
Loss of weight at 105˚C (48hr): 38.4%m/m
Approx moisture in excess of water of crystalline: 1.3%mm
Water insoluble matter: < 0.1%m/m
Dilute acid in soluble matter: < 0.1%m/m
Chloride: < 0.1%m/m
Aluminium: 20mg/kg
Arsenic: < 0.3mg/kg
Boron: 70mg/kg
Barium: < 4mg/kg
Beryllium: < 0.5mg/kg
Calcium: 200mg/kg
Cadmium: < 0.03mg/kg
Cobalt: 5.2mg/kg
Chromium: 25mg/kg
Copper: 1mg/kg
Mercury: < 1mg/kg
Potassium: < 60mg/kg
Lithium: < 5mg/kg
Magnesium: 33mg/kg
Manganese: 1100mg/kg
Molybdenum: 1.4mg/kg
Sodium: 20mg/kg
Nickle: 38mg/kg
Phosphorous: < 100mg/kg
Lead: < 1mg/kg
Antimony: < 1mg/kg
Selenium: 2mg/kg
Silicon: 40mg/kg
Tin: < 0.8mg/kg
Titanium: 11mg/kg
Thallium: < 0.007mg/kg
Vanadium: 1.7mg/kg
Zinc: 20mg/kg
pH of 10% m/m solution: 2.58
pH of 30% m/m solution: 2.25

Retained on 2mm: 0.0%
Retained on 1mm: 65.6%
Retained on 0.5mm: 33.8%
Retained on 0.25mm: 0.6%
Retained on 0.125mm: < 0.01%
Retained on 0.036mm: < 0.01%
Passing 0.063mm: < 0.01%

Cas Number: 7782-63-0

Einecs Number: 231-753-5

HS Code / Commodity Code: 2833298080

Hazard Phrases: H302,H315,H319

Prec Phrases: P301+P312,P330,P305+P351+P338