Calcium Chloride is used in drilling mud to cool and lubricate the bit and to remove cuttings from the hole. also it helps add density to the mud to overcome formation pressures and keep oil, gas, and water in place. Calcium Chloride inhibits clay and shale hydration, adds needed weight to overcome formation pressure, aids in carrying cuttings to the surface, and is easily diluted from more concentrated solution. CaCl2 additive decreases thickening time, increases ‘early strength, and shortens the time wasted at the wellsite as operators wait for cement properties to take hold. Our CaCl2 additive can be adjusted to meet specific conditions and requirements. Mixes with low concentrations decrease slurry viscosity, while mixes with higher concentrations increase slurry viscosity. Calcium chloride is not toxic in normal amounts and is used in foods. However, its main hazard is due to its desiccating (drying) property and exothermic reaction when it dissolves in water. Thus, when the solid comes into contact with wet skin or eyes, it can cause severe irritation and mild burns. Swallowing large amounts can result in nausea, vomiting and abdominal pain.
Calcium chloride prevents spoilage of food and is popularly used as a preservative in packed foods. It also helps to keep the food healthy and fresh for a longer duration. The use of calcium chloride as a food additive and preservative has one more advantage. It helps to increase calcium content in the food, thereby contributing to boost nutritional value of the food item. In addition to being a preservative, it also acts as an excellent firming agent. Canned vegetables and fruits are likely to become soft if firming agents like calcium chloride are not added to them. In other words, to maintain firmness and keep canned foods away from softening, use of calcium chloride is essential. Although calcium chloride does not contain sodium, it is yet salty, hence is used as a flavor enhancer for pickles. Being an electrolyte and also a source of calcium, it is not surprising that calcium chloride is also found in sports drinks. As pasteurization of milk greatly diminishes calcium content, calcium chloride is added in small amounts to aid coagulation and form quality yogurt. Calcium chloride is also an important cheese making additive. The water solution of calcium chloride is used in refrigerators. The solution is an essential cooling agent for making ice.
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 (capable of absorbing moisture), 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 -67 degree Fahrenheit, 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.