Product type
Quick lime, also known as calcium oxide, is a white, caustic, alkaline crystalline solid at room temperature. It is produced by heating limestone in a process called calcination, which drives off carbon dioxide. Quick lime is highly reactive and can absorb moisture and carbon dioxide from the environment, forming hydrated lime or calcium carbonate. It is primarily used in various industrial processes, including steel manufacturing, water treatment, and as a pH regulator in soil and agriculture.
| Chemical formula | CaO |
| Purity | Typically 90% to 99% |
| Appearance | White powder or granules |
| Bulk density | Approximately 0.5 to 1.0 g/cm┬│ |
| Melting point | 2572 ┬░C |
| Solubility in water | Reacts vigorously with water |
When selecting quick lime, buyers should consider the purity level required for their specific applications, as higher purity may be necessary for certain industrial processes. It is also important to specify the form needed, whether powder or granules, and to inquire about moisture content and packaging options. Certifications and compliance with industry standards may be relevant depending on the application, so be sure to ask about these when requesting a quote.
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Quick lime is used in steel manufacturing, water treatment, and soil stabilization.
Yes, it is caustic and can cause burns; proper safety precautions should be taken.
It should be stored in a dry, cool place, away from moisture and acids.
Yes, it is often used to adjust soil pH and improve soil quality.
It produces heat and forms calcium hydroxide, also known as slaked lime.
Quick lime is calcium oxide, while hydrated lime is calcium hydroxide, produced by adding water to quick lime.