Gadolinium(III) nitrate

Gadolinium(III) nitrate

Identifiers
CAS Number	10168-81-7
ChemSpider	140078 Y
Jmol interactive 3D	Image
PubChem	159266
InChI InChI=1S/Gd.3NO3/c;3*2-1(3)4/q+3;3*-1 Y Key: MWFSXYMZCVAQCC-UHFFFAOYSA-N Y InChI=1/Gd.3NO3/c;3*2-1(3)4/q+3;3*-1 Key: MWFSXYMZCVAQCC-UHFFFAOYAX
SMILES [Gd+3].O=[N+]([O-])[O-].[O-][N+]([O-])=O.[O-][N+]([O-])=O
Properties
Chemical formula	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)
Solubility in water	Soluble
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Gadolinium(III) nitrate is an inorganic compound of gadolinium. It is used as a water-soluble neutron poison in nuclear reactors.^[1] Gadolinium nitrate, like all nitrates, is an oxidizing agent.

Use

Gadolinium nitrate was used at the Savannah River Site heavy water nuclear reactors and has to be separated from the heavy water for storage or reuse.^[2][3] 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

1. ↑ DOE Fundamentals Handbook: Nuclear Physics and Reactor Theory (PDF). U.S. Department of Energy. January 1993. p. 31. Retrieved 2007-09-26. 
2. ↑ E. Wilde and C. Berry. "Novel Method for Removing Gadolinium from Used Heavy Water Reactor Moderator". 
3. ↑ E.W. Wilde, M.B. Goli, C.J. Berry, J.W. Santo Domingo, and H.L. Martin. "Novel Method for Removing Gadolinium from Used Heavy Water Reactor Moderator" (PDF).