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Calcium chloride (CaCl2) is a deliquescent salt, which means that it turns to water by absorbing moisture in the air.
Its ability to absorb moisture makes it useful in several commercial applications. It is used as a desiccant, a drying agent, to prevent liquids from freezing, in salt water aquariums and in fire-extinguishers. It is also used in prepared foods to enhance salt flavour without increasing sodium.
Calcium chloride breaks down easily in water, forming calcium and chloride ions. Calcium promotes plant growth and chloride is an important micronutrient for plants and plays a role in photosynthesis.
Calcium chloride is not hazardous and can be disposed of in the trash or down the drain.
If calcium chloride is dissolved in water, after being used as a container desiccant for example, dilute it down to 1% or less. Turn on the faucet and pour the diluted solution down the drain. Follow with water for five minutes.
Nordic Power Desiccant uses calcium chloride as an absorbent. It is therefore non-toxic and environmentally friendly.