Titane trichloride

Reduction. Triaryknethane dyes are reduced readily to leuco bases with a variety of reagents, including sodium hydrosulfite, 2inc and acid (hydrochloric, acetic), 2inc dust and ammonia, and titanous chloride in concentrated hydrochloric acid. Reduction with titanium trichloride (Knecht method) is used for rapidly assaying triaryknethane dyes. The TiCl titration is carried out to a colorless end point which is usually very sharp (see Titanium COMPOUNDS, inorganic). 

Assay Methods. A Na carbonate fusion prod is currently used for assay of mil grade AP (see below under Specifications), but recently attempts have been made to replace it with a method which is faster and simpler to carry out. Two procs have been proposed a) Titanous Chloride Titration. A measured excess of Ti trichloride is added to a known weight of AP which reacts according to the equation ... 

Bis(acetylacetone) titanate, 25 90, 91 Bis(antimony pentafluoride)iodide, 3 63 Bis(antimony trichloride)tricarbonyliron, 3 62t... 

Titanous chloride (titanium trichloride) is applied in aqueous solutions, sometimes in the presence of solvents increasing the miscibility of organic compounds with the aqueous phase [199, 200]. Its applications are reduction of nitro compounds [201] and cleavage of nitrogen-nitrogen bonds [202] but it is also an excellent reagent for deoxygenation of sulfoxides [203] and amine oxides [199] (Procedure 38, p. 214). 

Titanium forms three series of salts in which the element is respectively tetra-, tri-, and mono-valent. Thus, titanium and chlorine form titanium tetrachloride, TiCl4, titanium trichloride, TiCl3, and titanium monochloride, TiCl. The two last are unstable and readily pass into the higher chloride. Titanium tetrachloride shows a marked resemblance to tin tetrachloride it unites easily with hydrochloric acid in solution, with formation of the complex acid, ehloro-titanic acid, [TiCl6]tI2, and forms many crystalline products with other chlorides. It also unites with ammonia, forming ammines. 

Stable selenium sols may be obtained by the reducing action of quadrivalent titanium. If a solution of titanium trichloride (1-5 per cent.) is boiled for some time, hydrolysis and oxidation occur on addition of this solution to one of selenium dioxide (0-2 per cent.) reduction to selenium occurs and any unchanged titanic acid, Ti(OII)4, remains in colloidal solution and exerts a protective action.4... 

The first process was that of P. Spence and Sons1 in 1903, in which the sulphite was reduced by mixing it with titanium trichloride. The mixture was subsequently poured into caustic soda solution and stable sodium hydrosulphite formed, whilst the titanium was precipitated as titanic hydroxide Ti(OH)4. This hydroxide was afterwards dissolved in hydrochloric acid and reduced by electrolysis... 

Titanium trichloride is an extremely easily oxidized material which dissolves in water to form a violet solution. On oxidation, it is converted to the colorless titanic acid, Ti(OH)4. Using a titanium trichloride solution of known strength, it is possible to reduce quantitatively dyes of various classes, the endpoint being taken as the point where the color of the dye disappears. 

GHLORIDE TITANIUM TRICHLORIDE MIXTURES -(UN 2869) (DOT) TITANIUM TRIGHLORIDE MIXTURES, pyrophoric (UN 2441) (DOT) TITANIUM TRIGHLORIDE, pyrophoric (UN 2441) (DOT) TITANOUS CHLORIDE TRICHLOROTITANIUM... 

In every experiment, a polymer of cyclopentadienyl titanate [(C5H5)Ti(OH)O]n is recovered as a by-product, which can be reconverted to the trichloride and then recycled. The other by-product, diacetone glucose, can also be recovered but is generally of little value. 

Die Umsetzung von Acylfluoriden mit Silicium(IV)- Oder Titan(IV)-chlorid in Gegenwart von Aluminium-trichlorid gibt unter Halogen-Austausch Acylchloride123. 

Barium iodate 1-hydrate, synthesis 4 Indium(I) bromide, synthesis 6 Hexachlorodisiloxane, synthesis 7 Trichlorosilanethiol, synthesis 8 Tris(acetylacetonato)silicon chloride, synthesis 9 Titanium(III)chloride, synthesis 11 Bis[tris(acetylacetonato)titanium(IV)] hexachloro-titanate(IV), synthesis 12 Zirconium(IV) iodide, synthesis 13 (Triphenyl) aminophosphonium chloride, synthesis 19 (Dimethylamido)phosphoryl dichloride, synthesis 20 Bis(dimethylamido)phosphoryl chloride, synthesis 21 Trimeric and tetrameric phosphonitrilic bromides, synthesis 23 Phosphorus(V) chloride-boron trichloride complex, synthesis 24... 

To a cooled (-25°C) 100-ml flask previously flame-dried and blanketed with nitrogen is added via a syringe a solution of 0.17 gm (0.4 mmole) of tetraphenyl titanate and 0.02 ml (0.2 mmole) vanadyl trichloride in 55 ml of chlorobenzene. Then a 3-ml portion (3.0 mmole) of a 1 M solution of di-ethylaluminum chloride in heptane to which a molar equivalent of anisole has been added is injected into the flask. Then 5 ml (0.045 mole) hexatriene is added via a syringe and stirred at -25°C for 24 hr. The resulting viscous solution is carefully quenched by pouring into cold, acidified (3% HCl) ethanol to precipitate the polymer. The polymer is washed with cold, acidified ethanol, absolute ethanol, and then dissolved in benzene to remove insolubles. The polymer (2.75 gm 78%) is stable in the benzene solution ([ /]inh 0-5% in benzene at 30°C of 0.61). The polymer on drying becomes crosslinked but is stable in solution. The infrared spectrum of 1,6-polyhexatriene is shown in Fig. 1. 

Synonyms Titanium chloride Titanium (III) chloride Titanium trichloride, pyrohoric Titanous chloride Trichlorotitanium... 

Titanous chloride. See Titanium trichloride Titanoxy sulfate. See Titanium sulfate Titanylacetylacetonate. See Titanium acetylacetonate... 

Perchloric acid Phosphomolybdic acid Phosphorus oxychloride Phosphorus pentachloride Phosphorus trichloride y-Picoline Polyphosphoric acid Potassium silicate Rhodium Selenium Selenium dioxide Silica gel Silver oxide (ous) Sodium borohydride Sodium silicate Strontium carbonate Sulfur dioxide Tantalum Tellurium Tetraisopropyl di (dioctylphosphito) titanate Titanocene dichloride Trichloromethylphosphonic acid Tristriphenylphosphine rhodium carbonyl hydride Tungsten carbide Vermiculite Ytterbium oxide Zinc chloride Zinc dust Zinc 2-ethylhexanoate Zirconium potassium hexafluoride... 

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