Uranate

J. L. Woolfrey, Preparation and Caldnation of Ammonium Uranates—-A Eiterature Survey, AEC/TM-476, AustraUm Atomic Energy Commission, Lucas Heights, Austraha, Sept. 1968. [Pg.208]

By suitable adjustment of the proportions of the reaetants, An speeies (An = U Am) are obtained of whieh the uranates are the best known. These are of the types M2U2O7, M2UO4, M4UO5 and MjUOg in eaeh of whieh the U atoms are eoordinated by 6 O atoms disposed oetahedrally but distorted by the presenee of 2 short trans U-O bonds, eharaeteristie of the uranyl U02 group. In view of the earlier inelusion of U in Group 6 it is interesting to note that, unlike Mo and W U apparently does... [Pg.1269]

Oleg N. Chupakhin (261), Department of Organic Chemistry, Urals State Technical University, Ekaterinburg 620002, Russia, e-mail chupahin ios.uran.ru... [Pg.307]

Pech-stein, m. pitchstone. -steinkohle,/, pitch coal, -tanne, /. pitch pine, -torf, m. pitch peat, blaek peat, -uran, n. pitchblende. Pegel, n. level water gage, pegmatitisch, a. (Patrog.) pegmatitic. [Pg.334]

Uran-metail, n. uranium metal, -nitrat, n. uranium nitrate. [Pg.472]

Urano-. uranous, uranoso-, specif. uranium(IV). Uranocker, m. uranium ocher, uraconite (variety of uranopilite). [Pg.472]

Urano-hydroxyd, n. uranous hydroxide, ura-nium(IV) hydroxide, -reihe, /. uranous series, -salz, n. uranous salt, -uranat, n. uranous uranate, uranium(IV,VI) oxide, UaOa. -verbindung, /. uranous compound, Uran-oxyd, n. uranium oxide, specif, uranic oxide, uranium(VI) oxide, UOa. -ozydhydrat, n. uranium hydroxide, -oxydoxydul, n. = Uranoxyduloxyd. -oxydrot, n. uranium oxide red- -oxydul, n. uranous oxide, ura-nium(IV) oxide, UO2. -oxyduloxyd, n. uranoso-uranic oxide, uranium (I V,VT) oxide, UaOa. -oxydulsalz, n. uranous salt, uranium-(IV) salt, -pechblende, /., -pecherz, n. pitchblende, -phosphat, n, uranium phosphate. -rot, n. uranium red. -salz, n. uranium salt. [Pg.472]

Uran-saure, /. uranic acid, -strahlen, m.pl. uranium rays, -tonbad, n. (Photog.) uranium toning bath, -tonung, /. uranium toning, uranuranig, a. uranoso-uranic, uranium(IV,VI). Uran-verbindung, /. uranium compound, -ver-starker, m. uranium intensifier. -vitriol, n. (Aftn.) johannite. [Pg.472]

Dimethoxytetrahydrofuran from Eastman Kodak Company was used without further purification. This material also can be prepared by catalytic hydrogenation2 of 2,5-dimethoxy-2,5 -dihy drof uran. 3... [Pg.81]

Polybutylene terephdialate (PBT) has been produced from PET scrap by transesterification widi 1,4-butanediol.1 In die process, classified and cleaned polymer Bake from postconsumer PET bottles is reacted witit 1,4-butanediol in an extruder. PBT is used as an engineering plastic. Ethylene glycol and tetrahydrol uran produced as by-products are recovered by distillation. [Pg.545]

Mit Uran(III)-Salzen werden aromatische Aldehyde iiber Radikale zu den entspre-chenden Alkoholen reduziert ... [Pg.525]

Uran(IV)-Komplexe in Nitromethan eignen sich zur Herstellung von stabilen Radi-kal-Kationen aus Phenazinen4 ... [Pg.525]

Blauer G (1974) Optical Activity of Conjugated Proteins. 18 69-129 Bleijenberg KC (1980) Luminescence Properties of Uranate Centres in Solids. 42 97-128 Boca R, Breza M, Pelikan P (1989) Vibronic Interactions in the Stereochemistry of Metal Complexes 71 57-97... [Pg.242]

This brings us to U(VI) as an electron acceptor in MMCT transitions. A few examples were mentioned above already. Krol et al. have shown and used the U(V)-U(VI) MMCT transition in oxygen-deficient uranates [78]. It is situated in the near-infrared. This transition plays an important role in the quenching of the luminescence of uranates. The luminescence of U(VI)02 in solution is quenched by Mn(II) and it has been shown by flash photolysis that this is due to an excited MMCT state Mn(III)U(V) [79]. [Pg.172]

Figure 2. Solubility of maninite as a function of pH at 25°C for different fluoride concentrations. Formation of uranous fluoride complexes greatly enhances maninite solubility below pH 3-4. The increase of maninite solubility at higher pH results from the formation of uranous hydroxyl complexes. [Used with permission of Elsevier Science, fromLangmuir (1978) Geochim Cosmochim Acta, Vol. 42, Fig. 4, p. 555].

See also in sourсe #XX -- [ Pg.170 ]

See also in sourсe #XX -- [ Pg.21 , Pg.166 ]

See also in sourсe #XX -- [ Pg.21 , Pg.166 ]

See also in sourсe #XX -- [ Pg.21 , Pg.166 ]

See also in sourсe #XX -- [ Pg.21 , Pg.166 ]

See also in sourсe #XX -- [ Pg.21 , Pg.166 ]

See also in sourсe #XX -- [ Pg.21 , Pg.166 ]

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