TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

UO3 [1 record]

Record 1 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

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