Thallium I nitrate

The aim of this work is the development of pyrene determination in gasoline and contaminated soils. For this purpose we used room temperature phosphorescence (RTP) in micellar solutions of sodium dodecylsulphate (SDS). For pyrene extraction from contaminated soils hexane was used. Then exttacts earned in glass and dried. After that remains was dissolved in SDS solution in the presence of sodium sulphite as deoxygenation agent and thallium (I) nitrate as heavy atom . For pyrene RTP excitation 337 nm wavelength was used. To check the accuracy of the procedures proposed for pyrene determining by RTP, the pyrene concentrations in the same gasoline samples were also measured by GC-MS. 

The reaction mixture first turns muddy brown, due to the hydrolysis of thallium(III) nitrate to thallium(III) hydroxide and thallium(III) oxide, and then yellow with the separation of colorless thallium(I) nitrate. 

The procedure for producing thallium 0-alumina from sodium 0-alumina is the same as that used above for silver 0-alumina. Thallium(I) nitrate is used in place... 

Reactions of thallium(I) ions To study these reactions a 0 025m solution of thallium(I) sulphate, T12S04, or a 0-05m solution of thallium(I) nitrate, T1N03, should be used. All these compounds are HIGHLY POISONOUS. 

Place a drop of saturated thallium(I) nitrate solution upon drop-reaction paper, add a drop of the test solution and then another drop of the thallium(I) nitrate solution. Wash the precipitate with ammonia solution, and add a drop of strongly acid tin(II) chloride solution. A yellow or orange spot remains. Sensitivity 0 5 pg Pt. Concentration limit 1 in 80,000. 

Thallium(I) nitrate (0 05m). Dissolve 13-32 g thallium(I) nitrate, T1N03, in water and dilute to 1 litre. 

Oxidation of cyclohexanone. Oxidation of cyclohexanone with TTN in acetic acid at room temperature proceeds rapidly to give adipoin (5) in 84% yield. If the oxidation is performed at first at room temperature, the thallium(I) nitrate removed hy filtration, and then the filtrate heated to about 40° for a few minutes, the product is cyclopentanecarboxylic acid (4), obtained in 84% yield. McKillop et al. propose that both products are derived from a common precursor, an epoxy enol (3). 

Deoximatiou. Oximes arc converted into aldehydes and ketones in yields of 70-95% when treated with TTN in methanol ai room temperature. The reaction is complete within a few minutes. The precipitated thallium(I) nitrate is removed, the filtrate shaken with dilute sulfuric acid, and the aldehyde or ketone extracted with ether or chloroform. The process is formulated as shown. One limitation is that the method... 

Regarding titrants, cationic substances (for example, protonized alkaloids, compounds containing quaternary nitrogen, etc.) are usually titrated with sodium tetraphenylborate, the exact concentration of which is determined titrimetrically against a standard substance such as thallium(I) nitrate or pure copper(II) or nickel(II) salts in the presence of 1,10-phenanthroline. For titrations of anionics, substituted quaternary ammonium or pyridinium salts are applied. The procedures are simple and represent an ecologic alternative to so-called two-phase titrations. ... 

U084. Propene, 1,3-dichloro- U217. . Thallium (I) nitrate... 

Sodium cyanide CNNa 562 8.79 Thallium(I) nitrate NOJl 206 9.6... 

In spite of the high yields and simplicity of this reaction, I can t recommend its use. That s because this procedure uses thallium(ni) nitrate to oxidize the propenylbenzene to the corresponding phenylacetone. The thallium(III) nitrate gets reduced to thallium(I) nitrate. Both of these heavy-metal compoimds are very poisonous and, unlike organic chemicals, the heavy metals persist forever in the environment, and accumulate in the body. You want a bunch of thaUium around the house about like you want to be kicked in the teeth with a heavy pair of boots. 

This method can be found in Tetrahedron Letters No. 60, pages 5275-80 (1970). To produce a one mole batch, dissolve one mole of propenylbenzene in some methanol, and put it into a one-gallon glass jug. In a beaker, dissolve one mole (448 grams) of thallium(III) nitrate trihydrate in methanol. Then pour the thallium solution into the jug with the propenylbenzene, and stir at room temperature for 5 minutes. The thallium(I) nitrate formed by the reaction comes out of solution. It is removed by filtration. 

Thallium(I) nitrate (saturated). Shake Ig thallium(I) nitrate TINO3 with 10 ml water. Use the clear supernatant liquid for tests. 

Clay-supported reagent. Thallium(III) nitrate adsorbed on K-10, a mont-inorillonite clay, is a remarkably effective reagent for oxidation. Generally oxidations proceed more cleanly than with TTN in methanol. The thallium(I) nitrate formed is also bound to the support. TTN itself is a trihydrate, but (he. supported reagent appears to be nonhydrated. 

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