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DOCUMENTATION_FORMAT: Man_Made
SAMPLE_ID: 12917 Stock No.
MATERIAL_TYPE: Chemical Reagent
MATERIAL: Rare Earth Nitrate Hydrate
FORMULA: Gd(NO3)3.xH2O (x~6)
FORMULA_HTML: Gd(NO3)3•xH2O (x~6)
COLLECTION_LOCALITY: Alfa Aesar, A Johnson Matthey Company, Massachusetts, USA
ORIGINAL_DONOR: Steve Wilson USGS
CURRENT_SAMPLE_LOCATION: USGS Denver Bld. 20 Room G1509
ULTIMATE_SAMPLE_LOCATION: USGS Denver Bld. 20 Room G1509
SAMPLE_DESCRIPTION:
Gadolinium nitrate hydrate chemical reagent 99.9% pure.
END_SAMPLE_DESCRIPTION.
XRD_ANALYSIS:
END_XRD_ANALYSIS.
COMPOSITIONAL_ANALYSIS_TYPE: None # XRF, EPMA, ICP(Trace), WChem
COMPOSITION_TRACE: None
COMPOSITION_DISCUSSION:
END_COMPOSITION_DISCUSSION.
MICROSCOPIC_EXAMINATION:
END_MICROSCOPIC_EXAMINATION.
SPECTROSCOPIC_DISCUSSION:
The spectrum lacks detectable f-f transition absorptions present in spectra of other Lanthanide series elements over the 0.35 to 2.5 micron wavelength range at the spectral resolution of the ASD spectrometer. Otherwise, the spectrum shows absorptions typical of water near 1, 1.2, and between 1.4 and 1.5 microns. The water content is apparently high enough to saturate the 2 to 2.5 micron region. G. Swayze.
END_SPECTROSCOPIC_DISCUSSION.
SPECTRAL_PURITY: 1a2_3_4_ # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns