lanthanum in English
It belongs to the family known as the lanthanides, named after the first member of that series, lanthanum .
Use "lanthanum" in a sentence
1. Synonym: Lanthanum Boride, Lanthanum hexaBoride Linear Formula: LaB 6
2. Lanthanum carbonate, La2(CO3)3, is the salt formed by lanthanum(III) cations and carbonate anions.
3. The n-type ohmic electrode is provided to comprise an alloy of aluminum and lanthanum or comprises lanthanum at the junction interface with the n-type group III nitride semiconductor.
4. APTech is a top producer of LaB6 Cathodes (lanthanum hexaboride)
5. Images of Anhydrously synthesized cerium-doped lanthanum fluoride/undoped lanthanum fluoride core/shell colloidal NCs with 50 nm, 10 nm, 5 nm, and 2 nm scale-bars
6. The method comprising forming a lanthanum-aluminum alloy layer at 300°C or less to form an n-type ohmic electrode enriched in lanthanum at the junction interface.
7. Lanthanum chloride Bidirectionally influences calcification in bovine vascular smooth muscle cells
8. Disclosed are catalysts comprising copper chromite, palladium and lanthanum having hydrogenation activity.
9. Applied Physics Lanthanum and Cerium Hexaboride (LaB 6 and CeB 6) Filaments / Cathodes
10. Pure lanthanum oxide, obtained by calcining oxygen-containing lanthanum salts at temperatures of at least 700°C, is used as a heterogeneous catalyst in the aldol condensation of citral and acetone to pseudoionone; pseudoionone is prepared by a process of aldol condensation of citral and acetone in liquid phase, using pure lanthanum oxide.
11. Zero the absorbence scale using the solution containing # g of lanthanum per litre
12. The chemical behaviour of Actinium is similar to that of the rare earths, particularly lanthanum
13. Lanthanum-La203 serves as an additive to improve alkali resistance of optical glass and photographic lenses
14. The first element of the actinides, actinium gave the group its name, much as lanthanum had done for the lanthanides.
15. The experimental results showed that nanometer sized lanthanum oxide could catalyze the decomposition reaction of NC/NG effectively. The mechan...
16. Owing to the close similarity of actinium and lanthanum and low abundance, pure actinium could only be produced in 1950.
17. When heated, the white allotrope can be converted into a red powder. 5. Series of transition elements between lanthanum (La) and hafnium (Hf).
18. Results with tracers such as colloidal iron and lanthanum have also shown that exines of microspores are permeable across areas lacking obvious channels.
19. Actinium has similar chemical properties to lanthanum and other lanthanides, and therefore these elements are difficult to separate when extracting from uranium ores.
20. Three different Auermetalls were developed: the first was iron and cerium, the second also included lanthanum to produce brighter sparks, and the third added other heavy metals.
21. In addition to those of the alkali metals and the alkaline-earth metals mentioned above, lanthanum (La) forms two different Acetylides, and copper (Cu), silver (Ag), and gold (Au) form explosive Acetylides
22. A microlithography projection objective is proposed with optical elements, i.e. lenses or planar-parallel plates (used as end-closure plates) of crystalline magnesium fluoride, quartz, lanthanum fluoride, sapphire and Alpha-aluminium oxide.
23. Bastnaesite, also spelled Bastnäsite, a cerium fluoride carbonate, CeCO 3 (OH,F), found in contact metamorphic zones and pegmatites; cerium is commonly substituted by light rare earths, lanthanum, yttrium, and thorium
24. Definition of Actinium : a radioactive trivalent metallic element that resembles lanthanum in chemical properties and that is found especially in pitchblende — see Chemical Elements Table First Known Use of Actinium 1900, in the meaning defined above
25. The Conductances, transference numbers, and activity coefficients of lanthanum chloride, samaric chloride, europic chloride, and ytterbic chloride were determined in order to test the present theories of electrolytic solutions as well as to make available accurate …
26. Lanthanum hexaboride (LaB 6) and cerium hexaboride (CeB 6) Cathodes are ideal for many small spot size applications such as SEM, TEM, surface analysis and metrology, and for high current applications such as microwave tubes, lithography
27. As a result of the optimized composition of tantalum, aluminum, titanium and the addition of hafnium, zirconium, lanthanum and optionally cerium, a welding material is proposed which can be easily welded and has good mechanical properties.
28. Sintered corundum with a microcrystalline structure, consisting of aluminium oxide (CAS RN 1344-28-1), magnesium aluminate (CAS RN 12068-51-8) and the rare earth aluminates of yttrium, lanthanum and neodymium, with a content by weight (calculated as oxides) of:
29. Sintered corundum with a micro crystalline structure, consisting of aluminium oxide (CAS RN 1344-28-1), magnesium aluminate (CAS RN 12068-51-8) and the rare earth aluminates of yttrium, lanthanum, and neodymium, with a content by weight (calculated as oxides) of:
30. The catalyst according to the present invention is manufactured by a method comprising the steps of: 1) manufacturing a zirconia and alumina support coated with lanthanum and cerium by wet or dry ball milling; and 2) mixing and firing a powder of the support in step 1) and a nickel powder.
31. Conductances, transference numbers and activity coefficients of some rare earth halides Abstract The Conductances, transference numbers and activity coefficients of aqueous sblutions at 25.0°C of lanthanum, praseodymium, neodymium, gadolinium and erbium bromides and of gadolinium chloride were determined for concentrations up to 0.1 normal.
32. Bacteriophagic instinct phrasing nucleació almires, lusóng, dikdikan maravilla 伤脑筋 [shang-nao-jin] zdravica ofsetni tisak vintner talk round espesso indicadores atrasados Finish not detailed (Geology) type of brown mineral (contains phosphate, cerium, lanthanum, and thorium), reddish-brown mineral witternd rumianek ostor-הילוך
33. The first superactinide, unbiunium (element 121), should be a congener of lanthanum and actinium and should have similar properties to them: its main oxidation state should be +3, although the closeness of the valence subshells' energy levels may permit higher oxidation states, just as in elements 119 and 120.
34. A method for regenerating a metal oxide fluidized bed catalyst containing molybdenum, bismuth and iron, which has been deteriorated by the use in reaction in the production of acrylonitrile through ammoxidation of propylene, which method comprises impregnating the deteriorated oxide catalyst separately with a solution of a molybdenum compound and a solution of at least one compound containing at least one element selected from the group consisting of iron, chromium, lanthanum and cerium, or impregnating with a mixed solution of those compounds which has been prepared in advance, followed by drying, and calcinating the resulting catalyst at a temperature of 500 to 700 °C.