titanium

(noun)

A strong, corrosion-resistant transition metal with the atomic number 22.

Related Terms

  • stainless steel

Examples of titanium in the following topics:

  • Titanium, Chromium, and Manganese

    • Titanium is a strong, lustrous transition metal.
    • Titanium was discovered in Cornwall, Great Britain, in 1791, by William Gregor.
    • In its unalloyed condition, titanium is as strong as some steels, but 45% lighter.
    • Titanium is one of the least dense, strong, and corrosion-resistant elements.
    • Titanium is commonly used in airplanes, golf clubs, and other objects that must be strong but lightweight.
  • Ziegler-Natta Catalytic Polymerization

    • The catalyst formed by reaction of triethylaluminum with titanium tetrachloride has been widely studied, but other metals (e.g.
    • Polymerization of propylene through action of the titanium catalyst gives an isotactic product; whereas, a vanadium based catalyst gives a syndiotactic product.
  • Molar Mass of Compounds

    • For example, the atomic mass of titanium is 47.88 amu or 47.88 g/mol.
    • In 47.88 grams of titanium, there is one mole, or 6.022 x 1023 titanium atoms.
  • Epoxidation

    • Sharpless, Scripps Research Institute, has transformed this general epoxidation reaction into a powerful enantioselective procedure, by the addition of a chiral tartrate ester ligand to a titanium alkoxide catalyst.
    • When mixed with one equivalent of diethyl tartrate, titanium tetraisopropoxide forms a dimeric complex with the loss of two isopropyl alcohol molecules.
    • A proposed structure for this complex is shown in the first diagram below, with the titanium atoms colored green.
  • Occurrence of Metals

    • Metals that can be found as native deposits singly and/or in alloys include antimony, arsenic, bismuth, cadmium, chromium, cobalt, indium, iron, nickel, selenium, tantalum, tellurium, tin, titanium, and zinc.
    • Other significant metallic alloys are those of aluminium, titanium, copper, and magnesium.
    • The alloys of aluminium, titanium, and magnesium are valued for their high strength-to-weight ratios, and magnesium can also provide electromagnetic shielding.
  • 1:3-Diastereoselection in Reactions with Chiral Aldehydes

    • As expected, the E-borinates give α:β-anti diastereomers exclusively, and the Z-titanium enolates strongly favor the α:β-syn family of isomers.
    • Other combinations show diminished β:γ-syn selectivity, and in the case of the Z-titanium enolates anti-Felkin-Ahn selectivity narrowly predominates.
  • Carbides

  • Trihalides: Boron-Halogen Compounds

    • The synthesis is analogous to the Kroll process for the conversion of titanium dioxide to titanium tetrachloride.
  • Functionalized Organometallic Reagents

    • The resulting dialkylzinc reagent tolerates some functional substituents (e.g. esters and nitriles), and undergoes carbonyl addition reactions with aldehydes and ketones provided a titanium(IV) catalyst is present.
  • General Properties of Metals

    • As a result, they retain their shiny appearance and good conductivity for many decades (like aluminium, magnesium, some steels, and titanium).
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