20281-00-9

Name CESIUM OXIDE
CAS 20281-00-9
EINECS(EC#) 243-679-0
Molecular Formula Cs2O
MDL Number MFCD00010958
Molecular Weight 281.81
MOL File 20281-00-9.mol
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Chemical Properties

Melting point  490°C
density  4.650
solubility  very soluble in H2O
form  yellow-orange hexagonal crystals
color  yellow-orange hexagonal, hexane crystals, crystalline
Water Solubility  very soluble H2O; soluble acids [HAW93]
Crystal Structure Reverse CdCl2 type
crystal system Three sides
Space group R3m
Lattice constant
a/nmb/nmc/nmα/oβ/oγ/oV/nm3
0.42560.42561.89990901200.2979
InChI InChI=1S/2Cs.O/q2*+1;-2
InChIKey KOPBYBDAPCDYFK-UHFFFAOYSA-N
SMILES [Cs+].[Cs+].[O-2]
CAS DataBase Reference 20281-00-9
EPA Substance Registry System Cesium oxide (Cs2O) (20281-00-9)

Safety Data

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H319-H314-H315-H318-H411
Precautionary statements  P260-P264-P280-P301+P330+P331-P303+P361+P353-P363-P304+P340-P310-P321-P305+P351+P338-P405-P501-P264-P280-P302+P352-P321-P332+P313-P362-P280-P305+P351+P338-P310-P264-P280-P305+P351+P338-P337+P313P
RIDADR  3180
TSCA  TSCA listed
HazardClass  4.1
PackingGroup  II

Hazard Information

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