Titanium sulfide

Titanium Sulfides. The titanium sulfur system has been summarized (4). Titanium subsulftde [1203-08-6] Ti2S, forms as a gray soHd of density 4600 kg/m when titanium monosulftde [12039-07-5], TiS, is heated at 1000°C with titanium ia a sealed tube. It can also be formed by heating a mixture of the two elements at 800—1000°C. The sulfide, although soluble ia concentrated hydrochloric and sulfuric acids, is iasoluble ia alkaUes. 

The principal use of titanium sulfides is as a cathode material ia high efficieacy batteries (11). In these appHcations, the titanium disulfide acts as a host material for various alkafl or alkaline-earth elements. 

The titanium sulfide is able to act as a lithium reservoir. On iatercalation with lithium, the titanium lattice expands from ca 570 to 620 pm as the iatercalation proceeds to completion on formation of TiI iS2. Small button cells have been developed, incorporating lithium perchlorate ia propyleae carboaate electrolyte, for use ia watches and pocket calculators (see Batteries). 

An optimal reaction-temperature of 65°C was claimed. The blackish brown TiSCl is very sensitive to oxygen and humidity. As no X-ray measurements have been made, additional work is needed. Titanium sulfide halides have also been claimed as catalysts for the polymerization of propylene (363). 

The strontium titanium sulfides, SrvTiSwhich exist between the x values of 1.05 and 1.22, contain interpenetrating rods of structure, both of which are modulated. In idealized Sr,TiS i, face-sharing TiS6 octahedra (Fig. 4.38a) form columns with a repeat... 

A sample of a strontium titanium sulfide Sr TiS3 was found to have a unit cell in which the repeat distance of the T1S3 chains, cTis, was found to be 0.30 nm and that of the Sr chains, cSr, was found to be 0.54 nm (Fig. 4.38). It is found that 5.5 Sr units fit with 10 TiS3 units. What is (a) the composition and (b) the approximate unit cell c parameter Another preparation has a composition Srj i2TiS3. (c) What is the new approximate unit cell c parameter ... 

U.S. consumption of, 24 847-848 world production of, 24 860, 861t Titanium subsulfide, 25 57 Titanium sulfates, 25 58-59 Titanium sulfides, 25 57-58 Titanium sulfinates, 25 119—120 Titanium sulfur compounds, 25 57-59... 

Poster 10. Young-Ah Jeon, Yang-Soo Kim and Kwangsoo No (Korea Advanced Institute of Science and Technology, Korea Basic Science Institute) Theoretical Study of Lithium Intercalation in Titanium Sulfides and Titanium Oxides... 

TiOjCaHjo, Titanium, dicarbonylbis(ti -pen-tamethylcyclopentadienyl)-, 24 152 TisSn, Titanium sulfide preparation in liquid tin, 23 161 TIC4H5, Thallium(I), cyclopentadienyl-24 97... 

The bis-Cp titanium bis(/-butanethiolato) and bis(ethanethiolato) complexes have been used as a single-source precursors for the preparation of thin films of titanium sulfides by metal-organic chemical vapour deposition (MOCVD). The crystal and molecular structures of the precursor complexes have been determined for comparison with homologous complexes of the general formula Cp2Ti(SR)2.1618... 

A variety of metal sulfides and their mixtures have been employed to improve the friction stability, wear, and noise characteristics of friction materials. Commonly used sulfides are antimony trisulfide, molybdenum disulfide, tin sulfides, zinc sulfide, copper sulfides, titanium sulfide, and bismuth trisulfide. Sulfide lubricants are usually used to complement carbonaceous lubricants. Fluoride and molybdate additives are sometimes used to enhance the action of carbonaceous and sulfide lubricants. Examples of fluorides are calcium fluoride and cryolite. Sodium and calcium molybdates have been used in small amounts. 

It was quite interesting to observe the sulfidation behaviour of TiAl. Narita et al. [60] found that the sulfidation of TiAl in a gaseous mixture of H2S and H2 results in the formation of titanium sulfides. As the sulfide scale grew by the outward diffusion of Ti. Al was enriched on the substrate surface as TiAl3 with a small amount of TiAl2 as shown in Fig. 10 [60]. After removing the sulfide scale they oxidised the specimen to show a very excellent oxidation resistance. A similar idea may apply to nitridation of TiAl, if preferential nitridation of Ti takes place. 

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