Calcium chloride is commonly used in various industries due to its versatile properties. The percentages you mentioned, 77% and 94%, usually refer to the concentration of calcium chloride in a solution or the purity of the solid form. Here are some typical uses for calcium chloride in different industries:
- Construction and Road Maintenance: Calcium chloride is often used for dust control on unpaved roads and as a de-icing agent to melt ice on roads and sidewalks. Its hygroscopic nature helps it attract moisture, making it effective in these applications.
- Agriculture: It is used to improve soil structure and as a supplement in animal feed.
- Food Industry: Calcium chloride is used as a firming agent in canned vegetables and cheese production, and as a preservative in some food products.
- Chemical Industry: It is used as a drying agent in various chemical processes and as a reactant in the production of other chemicals.
- Water Treatment: Calcium chloride is used to increase the hardness of water in various water treatment processes.
- Oil and Gas Industry: It is used in drilling fluids to control the density and viscosity of the fluids.
The concentration of the calcium chloride solution or its purity will determine its suitability for specific applications. For example, higher concentrations (like 94%) might be used in more demanding applications or where a more concentrated solution is needed.