Strontium sulfate
| Names | |
|---|---|
| IUPAC name
Strontium sulfate
| |
| Other names
Celestine
Strontium sulphate | |
| Properties | |
| SrSO4 | |
| Molar mass | 183.68 g/mol |
| Appearance | White solid |
| Odor | Odorless |
| Density | 3.96 g/cm3 (at 25 °C) |
| Melting point | 1,606 °C (2,923 °F; 1,879 K) |
| Boiling point | Decomposes |
| 0.0135 g/100 ml (25 °C) 0.014 g/100 ml (30 °C) | |
| Solubility | Insoluble in alkalis, organic solvents |
| Vapor pressure | ~0 mmHg |
| Thermochemistry | |
| Std molar
entropy (S |
117.0 J·mol−1·K−1 |
| Std enthalpy of
formation (ΔfH |
-1453.1 kJ·mol−1 |
| Hazards | |
| Safety data sheet | Sigma-Aldrich |
| Flash point | Non-flammable |
| Related compounds | |
| Related compounds
|
Magnesium sulfate Calcium sulfate Barium sulfate |
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Strontium sulfate (SrSO4) is an inorganic chemical compound, the sulfate salt of strontium.
It is found in nature as the mineral celestine.
Contents
Properties
Chemical
Strontium sulfate can be roasted with carbon at high temperatures to give strontium carbonate.
Boiling strontium sulfate with a soluble carbonate salt, like potassium carbonate will also give strontium carbonate.
Physical
Strontium sulfate is a white solid, practically insoluble in water and most solvents.
Availability
Strontium sulfate is sold by various chemical suppliers. Can also be bought online.
Preparation
Strontium sulfate can be prepared via displacement of a soluble strontium salt, such as strontium nitrate or strontium chloride with another soluble sulfate salt, like ammonium sulfate.
Alternatively, one can add sulfuric acid to strontium hydroxide or carbonate, which causes strontium sulfate to form.
Projects
Handling
Safety
Strontium sulfate has low toxicity and doesn't require special handling.
Storage
In closed bottles.
Disposal
No special disposal is required, though it's better to try to recycle the compound if possible.
