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Barium oxide Structure

Barium oxide

Chemical Properties

Melting point 1920 °C
Boiling point 2000 °C
Density  5.72 g/mL at 25 °C(lit.)
refractive index  1.98
solubility  soluble in dilute acid solutions, ethanol; insoluble in acetone
form  Powder
Specific Gravity 5.72
color  Light yellow-greenish to grayish
Water Solubility  Sparingly soluble in water. Soluble in ethanol, dilute mineral acids and alkali.
Sensitive  Moisture Sensitive
Crystal Structure NaCl type
crystal system Cube
Merck  14,986
Space group Fm3m
Lattice constant
a/nmb/nmc/nmα/oβ/oγ/oV/nm3
0.55050.55050.55059090900.1668
Exposure limits ACGIH: TWA 0.5 mg/m3
NIOSH: IDLH 50 mg/m3; TWA 0.5 mg/m3
Stability Stable. Incompatible with strong acids, water. Protect from moisture.
CAS DataBase Reference 1304-28-5(CAS DataBase Reference)
EPA Substance Registry System Barium oxide (1304-28-5)

Safety Information

Hazard Codes  T
Risk Statements  20-25-34
Safety Statements  26-36/37/39-45
RIDADR  UN 1884 6.1/PG 3
WGK Germany  1
RTECS  CQ9800000
3-9-34
TSCA  Yes
HazardClass  6.1
PackingGroup  III
HS Code  28164000
Toxicity mouse,LD50,intraperitoneal,146mg/kg (146mg/kg),Current Toxicology. Vol. 1, Pg. 39, 1993.

MSDS

Usage And Synthesis

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