Difference between revisions of "Strontium chloride"
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Latest revision as of 22:14, 8 November 2021
| Names | |
|---|---|
| IUPAC name
Strontium chloride
| |
| Other names
Strontium dichloride
| |
| Properties | |
| SrCl2 (anhydrous) SrCl2·H2O (hexahydrate) | |
| Molar mass | 158.53 g/mol (anhydrous) 266.62 g/mol (hexahydrate) |
| Appearance | Colorless hygroscopic solid |
| Odor | Odorless |
| Density | 3.052 g/cm3 (anhydrous, monoclinic form) 2.672 g/cm3 (dihydrate) 1.930 g/cm3 (hexahydrate) |
| Melting point | 874 °C (1,605 °F; 1,147 K) (anhydrous) 61 °C (141.8 °F; 334 K) (hexahydrate) |
| Boiling point | 1,250 °C (2,280 °F; 1,520 K) |
| anhydrous: 53.8 g/100 ml (20 °C) hexahydrate: 106 g/100 ml (0 °C) 206 g/100 ml (40 °C) | |
| Solubility | Slightly soluble in alcohols Insoluble in liq. ammonia |
| Vapor pressure | ~0 mmHg |
| Hazards | |
| Safety data sheet | Sigma-Aldrich (anhydrous) Sigma-Aldrich (hexahydrate) |
| Flash point | Non-flammable |
| Lethal dose or concentration (LD, LC): | |
| LD50 (Median dose)
|
2.000 mg/kg (rat, oral) |
| Related compounds | |
| Related compounds
|
Magnesium chloride Calcium chloride Barium chloride |
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Strontium chloride is an inorganic compound, the salt of strontium and chlorine with the formula SrCl2. It is often encountered as hexahydrate, SrCl2·6H2O
Contents
Properties
Chemical
Strontium chloride can be used to prepare various strontium salts, such as strontium carbonate or strontium dichromate, via double displacement with their respective sodium salts.
- SrCl2 + Na2CrO4 → SrCrO4 + 2 NaCl
- SrCl2 + Na2CO3 → SrCO3 + 2 NaCl
Physical
Strontium chloride is a colorless hygroscopic solid, very soluble in water.
Availability
Delete this section if not applicable
Preparation
Strontium chloride can be prepared by treating strontium oxide, strontium hydroxide or strontium carbonate with hydrochloric acid:
- Sr(OH)2 + 2 HCl → SrCl2 + 2 H2O
Crystallization from cold aqueous solution gives the hexahydrate, SrCl2·6 H2O. Dehydration of this salt occurs in stages, commencing above 61 °C. Full dehydration occurs at 320 °C.
Projects
- Make strontium metal
- Desiccant
- Make red flame
Handling
Safety
Strontium chloride has low toxicity.
Storage
In airtight closed bottles, away from moisture. Can also be kept in a desiccator.
Disposal
No special disposal is required.
