40Ar ; Argon, isotope of mass 40 ; Argon-40 ; Khladon R 740 ; R 740
CAS:
7440-37-1
EINECS:
231-147-0
Molecular Formula:
Ar
MDL:
Properties
Molecular Weight:
39.95 g·mol−1
Density:
1.784 ( 0°C )
Melting point:
-189 °C
Boiling point:
-186 °C
Solubility:
slight Stability Stable. Inert. Toxicology Not hazardous according to Directive 67/548/EEC. The gas presents a risk of asphyxiation if a largequantity is released into a room of small volume.