Calcium chloride dihydrate CAS#10035-04-8
Strong Moisture Absorption Capacity: Highly hygroscopic, making it an effective desiccant for moisture control and drying applications.
Multi-Functional Industrial Applications: Widely used for deicing, dust suppression, road surfacing, refrigeration brine, and cement processing.
Versatile Food and Water Treatment Uses: Functions as a food additive and helps increase water hardness in swimming pools.
Medical and Biotechnology Utility: Used in the treatment of hypocalcemia for rapid calcium supplementation and enhances cell membrane permeability to support genetic transformation processes.
Calcium Chloride Dihydrate (CAS#10035-04-8)
Calcium chloride dihydrate (CaCl₂·2H₂O) is the hydrated form of calcium chloride, an inorganic compound composed of calcium and chloride ions.
It offers a wide range of applications. Owing to its strong hygroscopic nature, it is commonly used as a desiccant for moisture absorption. It is also applied in deicing, dust suppression, and road surfacing. Additionally, it serves as a refrigeration brine in cooling systems and is utilized in ice and cement processing.
In other applications, it helps increase water hardness in swimming pools and functions as a food additive. In biotechnology, it enhances cell membrane permeability to facilitate genetic transformation. Medically, it is used to treat hypocalcemia when a rapid elevation of blood plasma calcium levels is required.
Calcium chloride dihydrate can be produced directly from limestone, obtained as a by-product of the Solvay process, or purified from natural brine sources.
Calcium chloride dihydrate Chemical Properties
| Melting point | 30 °C |
| Density | 1.71 g/mL at 25 °C(lit.) |
| Vapor pressure | 0.01 mm Hg ( 20 °C) |
| Refractive index | ~1.358 |
| Storage temp | Store at +15°C to +25°C. |
| Solubility | H2O: 1 M at 20 °C, clear, colorless |
| Form | Solid |
| Color | White to white-grayish |
| Specific Gravity | 0.835 |
| Odor | Odorless |
| PH | 4.5-8.5 (50g/l, H2O, 20℃) |
| PH Range | 46150 |
| Water Solubility | 1000 g/L (0 ºC) |
| λmax | λ: 260 nm Amax: 0.015 |
| λ: 280 nm Amax: 0.012 | |
| Sensitive | Hygroscopic |
| Merck | 141659 |
| Stability | Stable. Hygroscopic. Incompatible with vinylmethyl ether. |
| InChI | 1S/Ca.2ClH.2H2O/h;2*1H;2*1H2/q+2;;;;/p-2 |
| InChIKey | LLSDKQJKOVVTOJ-UHFFFAOYSA-L |
| SMILES | O.O.Cl[Ca]Cl |
| LogP | -1.380 (est) |
| CAS DataBase Reference | 10035-04-8(CAS DataBase Reference) |
| EPA Substance Registry System | Calcium chloride, dihydrate (10035-04-8) |
Safety Information
| Hazard Codes | Xi,Xn |
| Risk Statements | 36-36/37/38-22-20/21/22 |
| Safety Statements | 26-24-22-36 |
| WGK Germany | 1 |
| RTECS | EV9830000 |
| F | 3 |
| TSCA | Yes |
| HS Code | 28272000 |
| Storage Class | 13 - Non Combustible Solids |
| Hazard Classifications | Eye Irrit. 2 |
