Calcium chloride is a chemical compound with the formula CaCl₂. It's a white solid at room temperature and is commonly found in various forms, including:

1. Granular Calcium Chloride: This is a common form used for:

* De-icing: Sprinkled on roads and sidewalks to melt ice and snow.

* Dust Control: Used to bind dust on dirt roads and construction sites.

* Concrete Mixing: Added to concrete mixes to accelerate setting time.

2. Liquid Calcium Chloride: A solution of calcium chloride in water, often used for:

* De-icing: Applied to roads and runways in liquid form.

* Agricultural Use: Used as a fertilizer to provide calcium to plants.

3. Calcium Chloride Flakes: A form used for:

* Dehumidification: Absorbs moisture from the air, often used in commercial dehumidifiers.

4. Calcium Chloride Tablets: Small tablets used for:

* Pool Water Treatment: Helps maintain the calcium level in swimming pools.

5. Calcium Chloride Brine: A concentrated solution of calcium chloride used for:

* Refrigeration: Used as a refrigerant in industrial cooling systems.

* Oil & Gas Exploration: Used in drilling fluids to control well pressure.

Important Note: While calcium chloride is widely used, it's important to handle it with care. It can be irritating to the skin and eyes, and ingestion can be harmful.