Lime is a mineral with formula of CaO. The IMA symbol is Lm.
Corrosive
Irritant
⚠️ For information only; not a substitute for the official Safety Data Sheet (SDS).
Lime is a mineral with formula of CaO. The IMA symbol is Lm.
| Physical Description | Calcium oxide appears as an odorless, white or gray-white solid in the form of hard lumps. A strong irritant to skin, eyes and mucous membranes. Used in insecticides and fertilizers. |
| Color/Form | Grey-white, cubic crystals |
| Odor | Odorless |
| Melting Point | 4662 °F (NIOSH, 2024) |
| Boiling Point | 5162 °F at 760 mmHg (NIOSH, 2024) |
| Flash Point | Not flammable |
| Density | 3.3 at 68 °F (USCG, 1999) - Denser than water; will sink |
| Solubility | Reacts with water (NIOSH, 2024) |
| Vapor Pressure | 0 mmHg (approx) (NIOSH, 2024) |
| Stability/Shelf Life | Readily absorbs carbon dioxide and water from air, becoming airslaked. |
| IUPAC Name | oxocalcium |
| Molecular Formula | CaO |
| Molecular Weight | 56.08 g/mol |
| CAS | 1305-78-8 |
| SMILES | O=[Ca] |
| InChIKey | ODINCKMPIJJUCX-UHFFFAOYSA-N |
| Catalog No | KC.310056 |
| Pack sizes | 500GM · 5KG |
⚠️ For information only; not a substitute for the official SDS.