20281-00-9
CESIUM OXIDE
CAS: 20281-00-9
Molecular Formula: Cs2O
20281-00-9 - Names and Identifiers
| Name | CESIUM OXIDE |
| Synonyms | Oxydicesium CESIUM OXIDE dicesium oxide Dicesium oxide Einecs 243-679-0 Cesium oxide (Cs2O) Cesium oxide (cs2o) dicesium oxygen(-2) anion |
| CAS | 20281-00-9 |
| EINECS | 243-679-0 |
| InChI | InChI=1/2Cs.O/q2*+1;-2 |
20281-00-9 - Physico-chemical Properties
| Molecular Formula | Cs2O |
| Molar Mass | 281.8103 |
| Density | 4.650 |
| Melting Point | 490°C |
| Water Solubility | very soluble H2O; soluble acids [HAW93] |
| Appearance | yellow-orange hexagonal crystals |
20281-00-9 - Risk and Safety
| UN IDs | 3180 |
| Hazard Class | 4.1 |
| Packing Group | II |
20281-00-9 - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| category | water burning articles |
| explosive hazard characteristics | reaction with water to form strong corrosive Cesium hydroxide solution |
| flammability hazard characteristics | contact with water, ethanol, carbon dioxide, water mist halogen, hot sulfur dioxide above 150 ℃ spontaneous combustion, burning to white-hot |
| storage and transportation characteristics | warehouse low temperature ventilation and drying; Waterproof, moisture-proof, with halogen, carbon dioxide, separate storage of ethanol |
| fire extinguishing agent | foam, dry powder |
Last Update：2024-04-10 22:29:15
