Strontium Sulfate Precipitation
SrCl2 + Na2SO4 → SrSO4↓ + 2NaCl
Overview
Strontium chloride reacts with sodium sulfate to form a white precipitate of strontium sulfate (Ksp = 3.4 × 10⁻⁷). SrSO₄ is moderately insoluble, less so than BaSO₄ but more than CaSO₄. The mineral form is celestine, the primary source of strontium.
Participants
| Role | Substance | Coefficient | State |
|---|---|---|---|
| Reactant | Sodium Sulfate Na₂SO₄ | 1 | (aq) |
| Product | Sodium Chloride NaCl | 2 | (aq) |
Everyday Example
Strontium compounds give fireworks their characteristic red color. The element is named after Strontian, a village in Scotland.
Industrial Importance
Strontium sulfate (celestine) is mined as the primary source of strontium for fireworks, ceramic ferrite magnets, and zinc refining.
Properties
- Type
- Precipitation
- Reversible
- No
- Energy
- Exothermic
- ΔH
- -9.5 kJ/mol
Related Reactions
Aluminum Hydroxide Precipitation
Barium Carbonate Precipitation
Barium Sulfate Precipitation
Cadmium Sulfide Precipitation (Yellow)
Calcium Carbonate Precipitation
Calcium Fluoride Precipitation (Fluorite)
Calcium Oxalate Precipitation (Kidney Stones)
Calcium Phosphate Precipitation (Bone Mineral)
Calcium Sulfate Precipitation (Gypsum)
Chromium(III) Hydroxide Precipitation
Frequently Asked Questions
What is the equation for Strontium Sulfate Precipitation?
The balanced equation is: SrCl₂ + Na₂SO₄ → SrSO₄↓ + 2NaCl.
What type of reaction is Strontium Sulfate Precipitation?
Strontium Sulfate Precipitation is a precipitation reaction.
Is Strontium Sulfate Precipitation exothermic or endothermic?
Strontium Sulfate Precipitation is exothermic (releases energy). The enthalpy change (ΔH) is -9.5 kJ/mol.