Molecular Formula | I3Lu |
Molar Mass | 555.68 |
Density | 5.6g/mLat 25°C(lit.) |
Melting Point | 1050°C |
Solubility | Soluble in chloroform, carbon tetrachloride and carbon disulfide. |
Appearance | beads |
Specific Gravity | 5.6 |
Storage Condition | Room Temprature |
Sensitive | Hygroscopic |
MDL | MFCD00049970 |
Physical and Chemical Properties | Lutetium iodide is a lutetium iodide with the chemical formula LuI3. White powder or polycrystalline block, soluble in water and acid, easy to absorb moisture, need to be sealed. |
WGK Germany | 3 |
RTECS | ED2700000 |
TSCA | Yes |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Use | phosphonium iodide is used to prepare scintillation crystals. Cerium-doped phosphonium iodide crystals (LuI3:Ce3) are excellent scintillation materials. |
Application | rare earth ions doped phosphonium iodide crystal is a kind of material with excellent scintillation properties, since the strontium ion and the rare earth ion have comparable ionic radii and the same ionic valence, a large amount of a variety of rare earth ions can be doped. For example, cerium ion doped phosphonium iodide crystal has high light output, fast attenuation, good energy resolution, time resolution and linear response, it has higher luminous efficiency than rare earth ion doped fluoride crystal and oxide crystal, which can greatly improve the efficiency of scintillation detector. Europium Ion-doped phosphonium iodide crystals and terbium ion-doped phosphonium iodide crystals also have excellent scintillation properties, and can be used in security inspection, scintillation screen and other fields. |
preparation | phosphonium iodide can be obtained by heating reaction of the metal phosphonium and mercuric iodide: · 2 Lu 3 HgI2 → 2 LuI3 3 Hg · The Elemental Mercury formed in the reaction can be removed by distillation. · The phosphonium iodide hydrate crystallized from the solution can be heated with Ammonium iodide to obtain an anhydrous. |