Molecular formula: CaCl2 2H2O
This is Vital Minerals Calcium chloride 77% (E509) - premium food grade supplied in a aluminium doypack pouch with grip and heat seal, not a clear plastic bag unlike other sellers.
USES
Dessicant - Calcium Chloride is used in drying tubes to remove moisture from the surrounding air. The solid can be added to a solution to extract the water within it.
Marine Aquariums - Calcium Chloride is used to provide a vital source of calcium in marine aqauriums. The solid is added and dissolves, increasing the natural calcium levels in the water, essential for mollusks and cnidarians.
De-icing - Calcium Chloride is often used to lower the freezing point of water and prevent icy road conditions. It is more effective at lowering the frezzing temperature of water than sodium chloride.
Water Treatment - Calcium Chloride is used to increase the hardness of the water in swimming pools which helps to reduce the ware to the concrete walls.
Concrete - Calcium Chloride can be added to a concrete mix to speed up the setting time.
Brewing Beer - Calcium Chloride is sometimes added to the brewing water to increase hardness and correct mineral deficiencies.
USED IN FOOD Calcium chloride can be injected as intravenous therapy for the treatment of hypocalcaemia (low serum calcium). It can be used for insect bites or stings (such as Black Widow Spider bites).
It can help to protect the myocardium from dangerously-high levels of serum potassium in hyperkalemia. Calcium chloride can be used to quickly treat Calcium Channel Blocker toxicity, from the side effects of drugs such as Diltiazem (Cardizem)—helping avoid potential heart attacks.
The aqueous form of calcium chloride is used in genetic transformation of cells by increasing the cell membrane permeability, inducing competence for DNA uptake (allowing DNA fragments to enter the cell more readily).
Aquarium
It can be used in the reef aquarium hobby for adding bio-available calcium in solution for calcium-using animals such as snails, hard tube worms, and corals although the use of calcium hydroxide (kalkwasser mix) or a calcium reactor is the preferred method of adding calcium. However, calcium chloride is the quickest method to increase calcium levels as it dissolves readily in water.