Calcium Chloride Granular
Silica Gel Directs CaCl2, is a salt of calcium and chlorine. It behaves as a typical ionic halide, and is soild at room tempreture.
Applications for calcium chloride
Calcium chloride remains in solid state at room temperature. It readily dissolves in water and ethanol at a very low temperature. As it is hygroscopic, calcium chloride is always stored in air-tight (sealed) containers. Because of its strong affinity for atmospheric moisture, this chemical compound forms a liquid solution if exposed to oxygen. It can be used to dry other organic liquids; hence, it is sometimes also called a drying agent. Being strongly hygroscopic, a layer of calcium chloride is applied on roads and in mines to minimize dust problems. It is also widely used as an additive in the paper making industry and in the manufacturing of dyes. Calcium chloride is also often used as a dehydrating agent in the petrochemical industry, due to its ability to deprive a chemical compound of its water content.
Calcium chloride helps in lowering the freezing or melting point of water. Ice covered roads is a common problem in cold regions of the world. To make these roads usable, melting this ice is very important. Its ability to bring down the freezing point of water is what works to free winter roads from accumulated ice. For instance, the freezing point of water containing approximately 30% concentration of calcium chloride solution is around -55 degree Celsius, which is significantly lower than its normal freezing point. Calcium chloride melts ice faster than any other chemical compound and that is why in extremely cold conditions, the highway department applies it in a powder form on the roads and sidewalks.
Correcting Calcium Hardness
Low calcium content in water also referred as low calcium hardness can damage the swimming pool concrete and deck surfaces. These swimming pool problems can be avoided by increasing the calcium hardness of water. This can be easily achieved by adding calcium chloride to pool water.
Reduces Concrete Setting Time
Calcium chloride is often added to concrete mixes as it has been proved that concrete containing this chemical compound hardens rapidly, thus reducing the time of setting. This chemical compound also provides greater concrete strength. Unlike other chemical compounds, it does not damage the concrete.
Effective Exothermic Agent
Calcium chloride is exothermic (heat-producing). When added in liquids to remove dissolved water, a huge amount of heat is released and the temperature can rise up to 60 degree Celsius. This property is often used to start the heating process required for industrial purposes.
The unique properties of calcium chloride such as the ability to attract moisture from air, quick dissolving and exothermic qualities have indeed made it a popular industrial chemical.
Storage of Calcium Chloride
Calcium chloride is highly hygroscopic and deliquescent. For this reason, protecting solid calcium chloride from excessive moisture exposure is the primary requirement to maintain product quality while in storage.
Opened packages should be tightly resealed after each use to prevent caking and liquid brine formation that may result from exposure to humid air. They should be stored in a dry place and not above anything that can be damaged from a corrosive product like calcium chloride.