اکسید لوتتیم (III)

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Lutetium(III) oxide
شناساگرها
شماره ثبت سی‌ای‌اس 12032-20-1 ✔Y
پاب‌کم 159406
خصوصیات
فرمول مولکولی Lu2O3
جرم مولی 397.932 g/mol
دمای ذوب 2490 °C
دمای جوش
‎3980 °C
انحلال‌پذیری در other solvents moderate
ساختار
شکل مولکولی N/A
گشتاور دوقطبی N/A<
به استثنای جایی که اشاره شده‌است در غیر این صورت، داده‌ها برای مواد به وضعیت استانداردشان داده شده‌اند (در 25 °C (۷۷ °F)، ۱۰۰ kPa)
 ✔Y (بررسی) (چیست: ✔Y/N؟)
Infobox references

اکسید لوتتیم(III) (به انگلیسی: Lutetium(III) oxide) با فرمول شیمیایی Lu۲O۳ یک ترکیب شیمیایی است. که جرم مولی آن ۳۹۷٫۹۳۲ g/mol می‌باشد.

جستارهای وابسته[ویرایش]

منابع[ویرایش]

  • «IUPAC GOLD BOOK». دریافت‌شده در ۱۸ مارس ۲۰۱۲.
Lutetium(III) oxide
Names
Other names
Lutetium oxide, Lutetium sesquioxide
Identifiers
ECHA InfoCard 100.031.591
Properties
Lu2O3
Molar mass 397.932 g/mol
Melting point 2,490 °C (4,510 °F; 2,760 K)
Boiling point 3,980 °C (7,200 °F; 4,250 K)
Solubility in other solvents Insoluble
Band gap 5.5 eV[1]
Structure
N/A
N/A
Related compounds
Other anions
Lutetium(III) chloride
Other cations
Ytterbium(III) oxide
Supplementary data page
Refractive index (n),
Dielectric constantr), etc.
Thermodynamic
data
Phase behaviour
solid–liquid–gas
UV, IR, NMR, MS
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is ☑Y☒N ?)
Infobox references

Lutetium(III) oxide, a white solid, is a cubic compound of lutetium sometimes used in the preparation of specialty glasses. It is also called lutecia. It is a lanthanide oxide, also known as a rare earth.[2][3] [4]

History

In 1879, Jean Charles Galissard de Marignac (1817–1894), a French chemist, claimed to have discovered ytterbium, but he had found a mixture of elements. In 1907, a French chemist Georges Urbain (1872–1938) reported that ytterbium was a mixture of two new elements and was not a single element. Two other chemists also extracted Lutetium(III) oxide around the same time. They were from Germany, Carl Auer von Welsbach (1858–1929) and America Charles James (1880–1926). All three scientists successfully separated Marignac's ytterbia into oxides of two elements which were eventually named ytterbium and lutetium). None of these chemists were able to isolate pure lutetium. James' separation was of very high quality, but Urbain and Auer von Welsbach published before him.[5][6]

Uses

Lutetium(III) oxide is an important raw material for laser crystals.[7] It also has specialized uses in ceramics, glass, phosphors, and lasers. Lutetium(III) oxide is used as a catalyst in cracking, alkylation, hydrogenation, and polymerization.[2] The band gap of lutetium oxide is 5.5 eV.[1]

References

  1. ^ a b Ordin, S. V.; Shelykh, A. I. (2010). "Optical and dielectric characteristics of the rare-earth metal oxide Lu2O3". Semiconductors. 44 (5): 558–563. Bibcode:2010Semic..44..558O. doi:10.1134/S1063782610050027.
  2. ^ a b Lutetium Oxide. 1997-2007. Metall Rare Earth Limited. http://www.metall.com.cn/luo.htm
  3. ^ Macintyre, J. E. (1992). Dictionary of Inorganic Compounds Volumes 1–3. London: Chapman & Hall.
  4. ^ Trotman-Dickenson, A. F. (1973). Comprehensive Inorganic Chemistry. Oxford: Pergamon.
  5. ^ "Separation of Rare Earth Elements by Charles James". National Historic Chemical Landmarks. American Chemical Society. Retrieved 2014-02-21.
  6. ^ Weeks, Mary Elvira (1956). The discovery of the elements (6th ed.). Easton, PA: Journal of Chemical Education.
  7. ^ Parsonage, Tina L.; Beecher, Stephen J.; Choudhary, Amol; Grant-Jacob, James A.; Hua, Ping; MacKenzie, Jacob I.; Shepherd, David P.; Eason, Robert W. (2015). "Pulsed laser deposited diode-pumped 7.4 W Yb:Lu2O3 planar waveguide laser" (PDF). Optics Express. 23 (25): 31691–7. Bibcode:2015OExpr..2331691P. doi:10.1364/oe.23.031691. PMID 26698962.