Terbium chloride

A comparison of the decay times of the 5D4-+7F5 transitions for terbium chloride at room temperature are as follows ... 

It is interesting to note that the emission spectra of the terbium chlorides solvated with H20 and D20 show no discernible differences. Since the rare-earth chlorides solvated with D20 are isostructural with the chlorides solvated with H20 and since the emission spectra are essentially identical, Freeman et al believe that the variations in lifetime are not brought about by changes in the radiative-transition probabilities, but are a consequence only of changes in radiationless quenching efficiencies. They speculate that the decreased efficiency upon substitution of D20 for H20 must be related to the large changes in vibrational frequencies associated with substitution of the H atoms by the D atoms. 

H2S04, and of terbium chloride in H20. Data were collected on some gadolinium salts as well. 

Screening of ENRO, CIPRO, DAN, NOR, FLU, OXO, and NALA in pork muscle was based on HPTLC after the SPE procedure (195). Tissue samples were extracted with MeCN-NaOH, the supernatant dried, and the residues dissolved in dipotassium hydrogen phosphate buffer (pH 7.4) hexane was added. The aqueous phase was cleaned up using the SPE technique. After washing the cartridge, analytes were eluted with MeOH-ammonia solution (75 25). After the preparation step, extracts were spotted and eluted on silica gel plates. The plate is first inspected under UV illumination at 312 nm and then sprayed with terbium chloride. The method was validated at the levels of 15 yug/kg for ENRO, CPRO, DAN, and NOR and 5 yug/kg for FLU, 0X0, and NALA. 

The Terbium Chloride-Aluminum Chloride Vapor System. I. Absorption and Excitation Spectra, J.A. Caird, W.T. Camall, J.P. Hessler, and C.W. Williams, J. Chem. Phys. 74, 798-804 (1981). 

In this work, we present a new silylated ligand, which plays double roles, i.e., as a ligand for lanthanide ion and as an organic functional molecule to modify MCM-41. The luminescent mesoporous material is obtained first by grafting the silylated ligand to MCM-41, then coordinated with terbium chloride in ethanol. The luminescent properties of the hybrid mesoporou material will be described. 

SAFETY PROFILE Poison by intraperitoneal route. Moderately toxic by ingestion. An eye and severe skin irritant. When heated to decomposition it emits very toxic fumes of CP. See also TERBIUM, CHLORIDES, and RARE EARTHS. 

SmCl3H1206 samarium (iii) chloride hexahydrate 13465-55-9 25.00 2.3800 1 4554 TbCI3Hl206 terbium chloride hexahydrate 13798-24-8 25.00 4.3500 1... 

TbCls, Terbium chloride, 22 39 TbF,8N 06Pi2C72H72, Terbium(III), hexakis-(diphenylphosphinic amide)-, tris(hexa-iluorophosphate), 23 188 TbNsOuCjHrt, Terbium(ni), trinitrato-(1,4,7,10-tetraoxacyclododecane)-, 23 151... 

Smolyakova and Serebrennikov [78SMO/SER] measured the enthalpy change of the reaction between an aqueous solution of terbium chloride and Na2Se03(cr). The description of the experiments and calculations is somewhat meagre. Their data have been re-... 

TbCl3, Terbium chloride, 22 39 TbN402C4,H , Terbium, (2,4-pentanedion-ato)[5,10,15,20-tetraphenylpor-phyrinato(2-)]-, 22 160 TbN402C55H47, Terbium, (2,2,6,6-tetramethyl-... 

Yoshihara measured Tb in terbium oxide Tb O, and in terbium chloride solution by the sum peak pair method , and pointed out that the difference of the sum peak intensity ratio between two states could be enlarged by using comparison of a sum peak pair. This method has an advantage that the dependence of the sum peak pair ratio on the soun -detector distance is not as noticeable as that in the ordinary sum peak method. 

Fig. 2-15 [72] presents a chromatogram for analytical separation of radioactive zinc and indium chlorides (a) and indium and terbium chlorides (b) on an empty glass column (10 m x 1 mm). The separation was accomplished by using aluminum chloride vapors in a stream of helium as eluent. 

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