Calcium Chloride

Calcium chloride s exothermic properties are exploited in many self heating food products where it is activated (mixed) with water to start the heating process, providing a non-explosive, dry fuel that is easily activated. The chloride ions enhance flavour and give a perception of sweetness and fuller flavour, whereas the sulphate ions in Gypsum, which is also used to add calcium ions to brewing water, tend to impart a drier, crisper flavour with more bitterness. Aided by the intense heat evolved during its dissolution, calcium chloride is also used as an ice -melting compound. When distributed for this use, it usually takes the form of small white balls a few millimetres in diameter, called prills (see picture at top of page). 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. Calcium chloride can serve as a source of calcium ions in solution, for instance for precipitation because many calcium compounds are insoluble : Small children are more susceptible than adults (who generally have had experience trying to eat hot food, and can react accordingly) so calcium chloride pellets should be kept out of their reach. It is even found in snack foods, including Cadbury Caramilk chocolate bars (purpose unknown).

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