Calcium oxide
SIGALD/248568 - reagent grade
Synonym: Lime; Quicklime
CAS Number: 1305-78-8
Empirical Formula (Hill Notation): CaO
Molecular Weight: 56.08
EC Number: 215-138-9
MDL Number: MFCD00010911
Linear Formula: CaO
Product Type: Chemical
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: 248568-500G
This image depicts SKU: 248568-500G
| bp | 2850 °C (lit.) |
| concentration | ≥68.0% Ca (EDTA titration) |
| density | 3.3 g/mL at 25 °C (lit.) |
| form | powder |
| grade | reagent grade |
| InChI | 1S/Ca.O |
| InChI key | ODINCKMPIJJUCX-UHFFFAOYSA |
| loss | 10% loss on ignition, 1000°C (absorbed H2O and CO2) |
| pH | 12.6 (20 °C) |
| Quality Level | 200  |
| SMILES string | O=[Ca] |
| Application: | Calcium oxide is used: • As a catalyst during the transesterification of palm oil to produce biodiesel. • In the inactivation of Cryptosporidium spp. oocysts and Giardia spp. Cysts from WTS (water treatment sludge). • In combination with PAA (peracetic acid) to increases the biogas production potential of cow manure and maize straw. |
| General description: | Calcium oxide (CaO) is an alkaline earth metal oxide that has many industrial applications. Calcium oxide receives great attention in catalysis because it is affordable, environmentally friendly, and characterized by a strong basic nature, abundantly available, low methanol solubility and non-toxic compound. |
| Packaging: | 2.5 kg in poly drum |
| Packaging: | 500 g in poly bottle |
| Symbol |   GHS05,GHS07 |
| Signal word | Danger |
| Hazard statements | H315 - H318 - H335 |
| Precautionary statements | P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338 |
| Hazard Codes | Xi |
| Risk Statements | 37/38-41 |
| Safety Statements | 26-39 |
| RIDADR | UN1910 - class - PG 8 - Calcium oxide |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| bp | 2850 °C (lit.) |
| Density | 3.3 g/mL at 25 °C (lit.) |
| UNSPSC | 12352300 |