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UO3 [4 records]

Record 1 - external organization data 2011-02-07

English

Subject field(s)
  • Chemistry
  • Atomic Physics
  • Compartment - Canadian Nuclear Safety Commission
Universal entry(ies)
UO2
formula, see observation
CONT

"uranium oxide": any of a series of oxides of uranium that are usually regarded as definite compounds but are better considered phases with a range of compositions: as a) the dioxide UO2 ... obtained as a brown to black crystalline powder by heating uranium trioxide or tri-uranium oct-oxide in hydrogen or carbon monoxide and formerly used in gas mantles and in ceramic glazes....

CONT

Uranium refining wastes... are produced as a result of refining the yellow cake received from uranium mine mills to uranium trioxide(UO3), and from the conversion of UO3 to either uranium hexafluoride or uranium dioxide.

OBS

Chemical formula: UO2

French

Domaine(s)
  • Chimie
  • Physique atomique
  • Tiroir - Commission canadienne de sûreté nucléaire
Entrée(s) universelle(s)
UO2
formula, see observation
CONT

On connaît plusieurs oxydes d'uranium : l'oxyde uraneux UO2 est un solide noir, à propriétés basiques, résultant de la calcination de nombreux sels d'uranium [...]

OBS

Formule chimique : UO2

Spanish

Campo(s) temático(s)
  • Química
  • Física atómica
  • Compartimiento - Comisión Canadiense de Seguridad Nuclear
Entrada(s) universal(es)
UO2
formula, see observation
DEF

Polvo negro, de elevado punto de fusión. Combustible de los reactores nucleares. Tóxico, riesgo de radiación. Inflamable en forma de polvo.

OBS

Fórmula química: UO2

Save record 1

Record 2 2010-06-08

English

Subject field(s)
  • Chemistry
CONT

"uranium oxide": any of a series of oxides of uranium that are usually regarded as definite compounds but are better considered phases with a range of compositions: as ... c: the trioxide UO3 that is obtained as a light yellow to orange to brick-red amorphous or crystalline substance usually by heating uranyl nitrate or ammonium di-uranate, that loses oxygen on heating to form tri-uranium oct-oxide, and that is sometimes used as a pigment for green-yellow colors in glass.

OBS

Uranium refining wastes ... are produced as a result of refining the yellow cake received from uranium mine mills to uranium trioxide (UO3), and from the conversion of UO3 to either uranium hexafluoride or uranium dioxide.

OBS

UO3

French

Domaine(s)
  • Chimie
CONT

On connaît plusieurs oxydes d'uranium : [...] l'anhydride uranique UO3, obtenu par calcination de l'uranate d'ammonium, de couleur orangée, est amphotère et peut donner des sels d'uranyle et des uranates.

CONT

La purification [des concentrés d'uranium] consiste à traiter l'uranate par l'acide nitrique pour le transformer en nitrate d'uranyle, qui est purifié par extraction à l'aide de solvants organiques. Dans l'élaboration, on décompose par la chaleur le nitrate d'uranyle pur en trioxyde d'uranium UO3, qui, par réduction à l'hydrogène, conduit au dioxyde UO2.

OBS

UO3

Spanish

Campo(s) temático(s)
  • Química
OBS

UO3

Save record 2

Record 3 1999-09-29

English

Subject field(s)
  • Mineralogy
DEF

A variety of uraninite containing a large percentage of UO3, and also rich in helium. Contains about 10 percent of the yttrium earths.

French

Domaine(s)
  • Minéralogie
DEF

Variété d'uraninite contenant des terres rares (surtout du cérium).

Spanish

Save record 3

Record 4 1976-06-19

English

Subject field(s)
  • Chemistry
OBS

UO3

French

Domaine(s)
  • Chimie
OBS

T.I. - A8

Spanish

Save record 4

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