Calcium chloride anhydrous
| Formula | CaCl2 |
| Chemical formula | CaCl2 |
| Molar mass | 110.99 g/mol |
| CAS number | 10043-52-4 |
| HS Code | 28272000 |
| EC number | 233-140-8 |
| Storage | Without limitations |
| SDS | available |
| RTECS | EV9800000 |
| R phrase | R 36 |
| S phrase | S 22-24 |
| Odour | odourless |
| Form | solid |
| Color | white |
| p H value | ~8- 10(100 g/l 20°c) |
| Solubility in water | 740 g/l (25°c) |
| Solubility in ethanol | soluble (25°c) |
| Boiling point | >1600 °C |
| Melting point | 773 °C |
| Assay | ≥ | 90 | % |
| Description | Conforms | ||
| Solubility | Conforms | ||
| Identification | Conforms | ||
| Free alkali | ≤ | 0.2 | % |
| Water absorption capacity | ≥ | 20 | % |
Calcium Chloride Anhydrous is a white, hygroscopic, inorganic salt widely used in pharmaceuticals, laboratory applications, and industrial processes. It serves as a desiccant, electrolyte source, and a reagent in various chemical reactions.
🏭⚗️ Production
Anhydrous calcium chloride is typically produced by dehydrating hydrated calcium chloride using heat or by reacting calcium hydroxide with hydrochloric acid followed by crystallization and drying. Industrial production ensures high purity suitable for pharmaceutical, laboratory, and food-grade applications.
🔬 Properties
Calcium chloride anhydrous appears as a white crystalline powder. It is highly soluble in water, releasing heat upon dissolution (exothermic reaction), and is hygroscopic, absorbing moisture from the air. Chemically, it is stable under normal conditions but reacts with strong acids to release hydrogen chloride gas and with certain metals under specific conditions.
🧪 Applications
In pharmaceuticals, calcium chloride is used as an electrolyte replenisher, in intravenous solutions, and as a coagulant in certain formulations. In laboratories, it serves as a drying agent, reagent, and in buffer preparations. Industrially, it is used in de-icing, dust control, and as a stabilizer for concrete and brines.
⚠️ Safety
Calcium chloride anhydrous is corrosive to skin, eyes, and mucous membranes. Direct contact can cause irritation or burns, and inhalation of dust can irritate the respiratory tract. Proper handling includes wearing gloves, goggles, and protective clothing, and working in a well-ventilated area. Storage should be in tightly sealed containers, in a cool, dry place away from moisture and incompatible materials such as strong acids and alkalis. In case of contact, affected areas should be flushed with plenty of water immediately.
