|Other Name:||Xenon Isotope||Package:||0.5L Steel Cylinder|
colorless odorless gas,
periodic table gases
0.5L Cylinders Isotopic Gases Xe - 131 / Xenon Isotope Nonflammable
131Xe is a heavy, colorless, odorless, high pressure, noble gas.
Nuclei of two of the stable isotopes of xenon, 129Xe and 131Xe, have non-zero intrinsic angular momenta (nuclear spins, suitable for nuclear magnetic resonance). The nuclear spins can be aligned beyond ordinary polarization levels by means of circularly polarized light and rubidium vapor. The resulting spin polarization of xenon nuclei can surpass 50% of its maximum possible value, greatly exceeding the thermal equilibrium value dictated by paramagnetic statistics (typically 0.001% of the maximum value at room temperature, even in the strongest magnets). Such non-equilibrium alignment of spins is a temporary condition, and is called hyperpolarization. The process of hyperpolarizing the xenon is called optical pumping (although the process is different from pumping a laser).
Under adverse conditions, relatively high concentrations of radioactive xenon isotopes may be found emanating from nuclear reactors due to the release of fission products from cracked fuel rods, or fissioning of uranium in cooling water.
|Physical and Chemical Properties|
|Isotopic Enrichment||≥81 atom%, or ≥86 atom%|
|Atomic Mass||128.904779435 amu|
|Melting Point||(101.325 kPa) 161.4 K-169.1 ° F -111.7 ° C|
|Boiling point)||-162.62 ° F -108.12 ° C, (101.325 kPa) 165.03 K|
Xenon-133 is an isotope of xenon. It is a radionuclide that was inhaled to assess pulmonary function, and to image the lungs. It is also used to image blood flow, particularly in the brain. 133Xe is also an important fission product.
|Chemical formula||131 Xe|
|CAS Register Number||7440-59-7|
|DOT Classification||Nonflammable gas|
|DOT Label||Nonflammable gas|
|UN Number||UN 1046|
|Hazards||High Pressure and suffocation|
|Flammability Range (in air)||Nonflammable gas|