Description

Calcium chloride dihydrate is used in industrial processing deicing and chemical manufacturing.

Calcium Chloride Dihydrate powder is a white, crystalline, highly water-soluble compound used across various applications including as a desiccant, de-icing agent, and food additive (E509). It is available from scientific and chemical suppliers in South Africa. 

Product Information & Specifications
Calcium Chloride Dihydrate has the chemical formula CaCl₂·2H₂O and a molecular weight of 147.01 g/mol. It is hygroscopic, meaning it readily attracts and absorbs moisture from the air, and dissolves in water in an exothermic reaction (releasing heat). 

Key Applications
Laboratory Reagent: Used as a source of calcium ions and in various chemical analyses.
De-icing and Dust Control: Its ability to lower the freezing point of water makes it an effective de-icing agent on roads and sidewalks, even at low temperatures, and for controlling dust on unpaved surfaces.
Food Industry: As a food additive (E 509), it acts as a firming agent in canned fruits and vegetables and improves milk coagulation in cheese production.
Dehumidification: In powder form, it can be used in non-electric dehumidifiers to protect against mould and rust in damp spaces like basements and garages.
Water Treatment: Used to adjust water hardness in drinking water treatment and aquariums to support optimal coral growth. 

Safety and Handling Precautions
Hazards: May cause irritation to the eyes, skin, and respiratory tract. It releases heat when dissolved in water, which requires careful handling. Harmful if ingested in large quantities.
Precautions: Wear protective gloves and safety goggles when handling to avoid contact with skin and eyes. Use in a well-ventilated area to avoid inhalation of dust.
Storage: Store in a tightly closed container in a cool, dry place to prevent it from absorbing moisture from the air and clumping.