Iron(II) Sulfide Precipitation

FeSO₄ + Na₂S → FeS↓ + Na₂SO₄

نظرة عامة

Iron(II) sulfate reacts with sodium sulfide to form a black precipitate of iron(II) sulfide (Ksp = 6 × 10⁻¹⁸). FeS reacts with dilute acids to produce hydrogen sulfide gas with its characteristic rotten egg smell. The mineral form is troilite, found in meteorites.

المشاركون

الدور	المادة	المعامل	الحالة
منتج	Sodium Sulfate Na₂SO₄	1	(aq)

مثال من الحياة اليومية

The black spots in hard-boiled eggs at the yolk-white junction are iron sulfide, formed by reaction of iron in the yolk with sulfur from the egg white.

الأهمية الصناعية

Iron sulfide is encountered in the petroleum industry as a corrosion product in sour gas wells and is the mineral pyrrhotite in geological formations.

الخصائص

النوع: Precipitation
قابل للعكس: لا
الطاقة: طارد للحرارة
ΔH: -75,0 kJ/mol

التفاعلات ذات الصلة

Aluminum Hydroxide Precipitation Barium Sulfate Precipitation Cadmium Sulfide Precipitation (Yellow) Calcium Phosphate Precipitation (Bone Mineral) Chromium(III) Hydroxide Precipitation Lead Carbonate Precipitation Magnesium Hydroxide Precipitation Copper Sulfide Precipitation Cobalt(II) Hydroxide Precipitation Iron(III) Hydroxide Precipitation

Frequently Asked Questions

What is the equation for Iron(II) Sulfide Precipitation?

The balanced equation is: FeSO₄ + Na₂S → FeS↓ + Na₂SO₄.

What type of reaction is Iron(II) Sulfide Precipitation?

Iron(II) Sulfide Precipitation is a precipitation reaction.

Is Iron(II) Sulfide Precipitation exothermic or endothermic?

Iron(II) Sulfide Precipitation is exothermic (releases energy). The enthalpy change (ΔH) is -75.0 kJ/mol.