Gadolinium(III) nitrate

Chemical compound From Wikipedia, the free encyclopedia

Gadolinium(III) nitrate is an inorganic compound of gadolinium with the formula Gd(NO3)3. A hydrate with the formula [Gd(NO3)3(H2O)4]·2H2O exists.[2] This salt is used as a water-soluble neutron poison in nuclear reactors.[3] Gadolinium nitrate, like all nitrate salts, is an oxidizing agent.

Quick facts Identifiers, Properties ...
Gadolinium(III) nitrate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.030.385 Edit this at Wikidata
  • InChI=1S/Gd.3NO3/c;3*2-1(3)4/q+3;3*-1 checkY
    Key: MWFSXYMZCVAQCC-UHFFFAOYSA-N checkY
  • InChI=1/Gd.3NO3/c;3*2-1(3)4/q+3;3*-1
    Key: MWFSXYMZCVAQCC-UHFFFAOYAX
  • [Gd+3].O=[N+]([O-])[O-].[O-][N+]([O-])=O.[O-][N+]([O-])=O
Properties
Gd(NO3)3
Molar mass 343.26 g/mol
Appearance White crystalline solid
Density 2.3 g/cm3
Melting point 91 °C (196 °F; 364 K)
Soluble
Hazards
GHS labelling:[1]
GHS03: OxidizingGHS05: CorrosiveGHS07: Exclamation markGHS09: Environmental hazard
Danger
H272, H315, H318, H319, H335, H410
P210, P220, P261, P264, P264+P265, P271, P273, P280, P302+P352, P304+P340, P305+P351+P338, P305+P354+P338, P317, P319, P321, P332+P317, P337+P317, P362+P364, P370+P378, P391, P403+P233, P405, P501
Safety data sheet (SDS) External MSDS
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Use

Gadolinium nitrate was used at the Savannah River Site heavy water nuclear reactors and had to be separated from the heavy water for storage or reuse.[4][5] The Canadian CANDU reactor, a pressurized heavy water reactor, also uses gadolinium nitrate as a water-soluble neutron poison in heavy water.

Gadolinium nitrate is also used as a raw material in the production of other gadolinium compounds, for production of specialty glasses and ceramics and as a phosphor.

References

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