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Calcium chloride is an inorganic compound with the formula CaCl2. It is a white crystalline solid that is highly soluble in water, releasing heat upon dissolution. This hygroscopic salt is typically produced through the reaction of hydrochloric acid with calcium carbonate or calcium hydroxide. Calcium chloride is widely used for various applications due to its properties as a desiccant, freezing point depressant, and dust control agent.
| Chemical formula | CaCl2 |
| Appearance | White crystalline solid |
| Solubility | Highly soluble in water |
| Melting point | 772 °C |
| Density | 2.15 g/cm³ |
When purchasing calcium chloride, consider the specific application to determine the appropriate grade and form (flakes, pellets, or solution). Buyers should specify the desired purity level and any relevant certifications, especially for food or pharmaceutical applications. Additionally, indicate the required quantity and packaging preferences to ensure proper delivery and handling.
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It is used for de-icing, dust control, desiccation, and food preservation.
Yes, but ensure it meets food-grade standards.
Store in a cool, dry place away from moisture.
Yes, it is commonly used to adjust water hardness.
It is available in flakes, pellets, and liquid solutions.
It is generally considered safe, but excessive use can affect soil and water.