Calcium chloride CAS#10043-52-4
Versatile Applications – Widely used in medicine, food, pharmaceuticals, construction, and de-icing.
Effective Dehydrating Agent – Efficient for drying gases, liquids, and as a desiccant.
Strong De-icing and Dust Control – Melts snow and ice, controls dust, and thaws building materials.
Concrete Performance Enhancer – Acts as a hardening accelerator in concrete applications.
Rewritten Paragraph (without changing the original meaning):
Calcium chloride (CaCl₂) is a colorless, deliquescent solid that dissolves readily in both water and ethanol. It is typically produced through the reaction of calcium carbonate with hydrochloric acid or from calcium hydroxide and ammonium chloride. This compound finds applications in medicine, as an antifreeze, and as a coagulant.
In terms of chemical compatibility, aqueous calcium chloride is a weak base. It reacts with zinc in the presence of moisture, releasing highly flammable hydrogen gas. The dissolution in water is highly exothermic. It is incompatible with substances such as bromine trifluoride, 2-furan, and percarboxylic acids, and may corrode certain building materials and metals when moisture is present.
Calcium chloride Chemical Properties
Melting point | 772 °C (lit.) |
Boiling point | 1935 °C/1 atm (lit.) |
Density | 1.086 g/mL at 20 °C |
Vapor pressure | 0.01 mm Hg ( 20 °C) |
Refractive index | n20/D 1.358 |
Fp | >1600°C |
Storage temp | Store at +5°C to +30°C. |
Solubility | H2O: soluble |
Form | |
Color | White to gray |
Specific Gravity | 2.15 |
PH | 8-10 (100g/l, H2O, 20℃) |
Water Solubility | 740 g/L (20 ºC) |
Sensitive | Hygroscopic |
λmax | λ: 260 nm Amax: 0.04 |
Crystal Structure | CaCl2 type |
Crystal system | Nogata |
Merck | 14,1659 |
Space group | Pnnm |
Lattice constant | a/nmb/nmc/nmα/oβ/oγ/oV/nm30.6240.6430.429090900.1685 |
Stability | Stable. Incompatible with zinc, water, strong acids, methyl vinyl ether, bromine trifluoride, boron oxide, calcium oxide. Hygroscopic. |
InChIKey | UXVMQQNJUSDDNG-UHFFFAOYSA-L |
CAS DataBase Reference | 10043-52-4(CAS DataBase Reference) |
NIST Chemistry Reference | Calcium dichloride(10043-52-4) |
EPA Substance Registry System | Calcium chloride (10043-52-4) |
Safety Information
Hazard Codes | Xi |
Risk Statements | 36/37/38-36-36/38-41-22 |
Safety Statements | 26-39-24-22-36 |
WGK Germany | 1 |
RTECS | EV9810000 |
F | 3 |
TSCA | Yes |
HS Code | 28272000 |
Hazardous Substances Data | 10043-52-4(Hazardous Substances Data) |
Toxicity | LD50 i.v. in mice: 42.2 mg/kg (Syed, Hosain) |
Calcium chloride serves a wide range of purposes. It functions as a desiccant, is commonly used for de-icing roads and highways, helps in dust control, and is employed to thaw building materials such as sand, gravel, and concrete. Additionally, it is utilized in the food and pharmaceutical sectors and can act as a fungicide.
Classified with tumorigenic and mutagenic potential and noted for hormonal activity in human data, calcium chloride is also applied as road salt, a drying agent in desiccators, and a dehydrating medium for organic liquids and gases. It is used in refrigeration brines, antifreeze solutions, food additives, concrete hardening, and more.
