iridium in Dutch

iridium [iridiəm] iridium

Sentence patterns related to "iridium"

1. During a snowball Earth, iridium would accumulate on the ice sheets, and when the ice melted the resulting layer of sediment would be rich in iridium.

2. Silver, gold, platinum, osmium, iridium, rhodium and ruthenium and their alloys

3. Iridium is separated from the other platinum group metals as crystalline ammonium hexachloroiridate, (NH4)2, which can be reduced to iridium metal in a stream of hydrogen.

4. A method for preparing iridium carboxylates by reacting at least one iridium chloride or bromide with an alkali metal or alkaline-earth metal carboxylate in a medium containing a carboxylic acid.

5. Organoiridium compounds contain iridium–carbon bonds where the metal is usually in lower oxidation states.

6. These extreme difficulties in melting the metal limited the possibilities for handling iridium.

7. Iridium: Metallic chemical element, one of the transition elements, chemical symbol Ir, atomic number

8. It decomposes in water and is reduced to IrF 4, a crystalline solid, by iridium black.

9. Consequently, Iridium will need to rely on more lucrative business customers than it had envisioned.

10. A member of the platinum group metals, iridium is white, resembling platinum, but with a slight yellowish cast.

11. Iridium (or sometimes platinum alloys or osmium) and mostly iridium alloys have a low wear and are used, for example, for multi-pored spinnerets, through which a plastic polymer melt is extruded to form fibers, such as rayon.

12. An off-the-shelf chiral iridium catalyst Allylates both ends of 1,3-propanediol with essentially perfect diastereo- and enantiocontrol

13. Iridium metal dissolves in molten alkali-metal cyanides to produce the Ir(CN)3+ 6 (hexacyanoiridate) ion.

14. The mirrors of the Chandra X-ray Observatory are coated with a layer of iridium 60 nm thick.

15. This increase in iridium consumption is predicted to saturate due to accumulating stocks of crucibles, as happened earlier in the 2000s.

16. Iridium proved to be the best choice for reflecting X-rays after nickel, gold, and platinum were also tested.

17. He had tubes made with Anticathodes of Platinum, Osmium, and Iridium, of Palladium and Rhodium, and of Copper and Nickel

18. Iridium trichloride, IrCl 3, which can be obtained in anhydrous form from direct oxidation of iridium powder by chlorine at 650 °C, or in hydrated form by dissolving Ir 2O 3 in hydrochloric acid, is often used as a starting material for the synthesis of other Ir(III) compounds.

19. Iridium-based light emitting compound having picolinic acid-n-oxide as auxiliary ligand and organic light emitting diode comprising the same

20. Koper-nikkel Bougies dienen ongeveer na elke 20 000 – 30 000 kilometer vervangen te worden, en iridium en platina na 60 000 – 120 000 km

21. Iridium hard wear-resisting, the iraurita pen tip is more durable than the ordinary pen nib, key in this "small dot" on.

22. The Anodize process for Iridium does not use a heavy dye and because of this the finish tends to be a very slick silvery metallic

23. The Iridium satellite constellation was conceived in the early 1990s, as a way to reach high Earth latitudes with reliable satellite communication services.

24. Iridium can also be found in crystals in computer memory devices, deep-water pipes, X-ray telescopes and the equipment that makes rayon fibers.

25. Especially, the ionic iridium complex of the phosphine oxazoline ligand obtains excellent reactional activity and enantioselectivity in the asymmetric hydrogenation of imine and olefin.

26. A vinyl Cyclopropane rearrangement embedded in an iridium‐catalyzed hydrogen borrowing reaction enabled the formation of substituted stereo‐defined cyclopentanes from Ph* methyl ketone and cyclopropyl alcohols

27. Iridium is the most corrosion-resistant metal known: it is not attacked by almost any acid, aqua regia, molten metals, or silicates at high temperatures.

28. From 1944 onward, the famous Parker 51 fountain pen was fitted with the "RU" nib, a 14K gold nib tipped with 96.2% ruthenium and 3.8% iridium.

29. Finally, a pill of radioactive iridium 192—a powerful isotope—no bigger than a pencil eraser, is cranked into the tube to expose the X-ray film.

30. The effect of varying the silicate degree of the flux on the collection of iridium by copper has also been studied; maximum recovery being achieved with acid slags whose silicate degree was 3.0.

31. Bulbs having nickel, tungsten, or iridium Anticathodes have not so far been found convenient; the former two because their homogeneous radiations are relatively weak, the last because it is of much the same wave-length as the heterogeneous rays which the bulb emits, while it …

32. The method for preparing the hydroxyl arene compound, according to the present invention, is economical because the method does not require any metal catalyst, such as palladium or iridium, and does not require demanding processes such as strong acid or base conditions, low temperature reactions, or reactions of anhydrous conditions.

33. A Conceptionally new strategy for the asymmetric (2R‐selective) synthesis of α‐tocopherol (vitamin E) was developed.In the stereocontrolled key step, a prochiral spiro[chromane‐2,3′‐cyclobutanol] unit is effectively desymmetrized under C−C bond activation in an unprecedented iridium‐catalyzed transformation using (S)‐DTBM‐SegPhos as a chiral ligand (e.r

34. BriskRacing.com is the preferred dealer for BriskUSA.com and offers Brisk Premium LGS Spark Plugs, Brisk Premium Multi-Spark Plugs, Brisk Silver Racing Spark Plugs, Brisk Iridium Racing Spark Plugs, Brisk Yttrium Spark Plugs and other performance spark plugs and products for use in stock, modified, and/or forced induction, turbo, supercharged

35. Brachytherapy Implant radiation, internal radiation, intracavitary therapy, interstitial radiation therapy Radiation oncology RT in which radioactive materials–iridium-192, radium-226, and other radioisotopes, sealed in needles, seeds, wires, or catheters are placed in direct contact with certain carcinomas to deliver locally intense ionizing radiation–eg, as needed in invasive CA of the

36. The present invention leaches platinum groups from industrial waste containing platinum group metals (platinum (Pt), ruthenium (Ru), osmium (Os), rhodium (Rh), iridium (Ir), palladium (Pd)), adsorbs onto an absorbent platinum group metal ions inside a leachate, desorbs the platinum group metal ions attached to the adsorbent using a desorbent to recover high concentration platinum group metal ion mixed solution, and also, recover the platinum group metal ions in the metallic form by ashing the adsorbent having the platinum group metal ions attached thereto.