Sample Description USGS Spectral Library Version 7

USGS Spectral Library Version 7 Sample Description

Kokaly, R.F., Clark, R.N., Swayze, G.A., Livo, K.E., Hoefen, T.M., Pearson, N.C., Wise, R.A., Benzel, W.M., Lowers, H.A., Driscoll, R.L., and Klein, A.J., 2017, USGS Spectral Library Version 7: U.S. Geological Survey Data Series 1035, 61 p., https://doi.org/10.3133/ds1035
_{For more information on the library, see:
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TITLE: Cyanide_Nickel_Potassium DESCRIPT

DOCUMENTATION_FORMAT: Man_Made

SAMPLE_ID: None

MATERIAL_TYPE: Cyanide

MATERIAL: Nickel Potassium Cyanide

FORMULA: K2Ni(CN)4.H2O

FORMULA_HTML: K₂Ni(CN)₄.H₂O

COLLECTION_LOCALITY: Chemical Supplier, Unknown

ORIGINAL_DONOR: Trude King

CURRENT_SAMPLE_LOCATION: Unknown

ULTIMATE_SAMPLE_LOCATION: Unknown

SAMPLE_DESCRIPTION:

Chemical reagent powder.

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 has a strong absorption edge centered at 0.54 microns. Beyond 1.5 microns it slopes downward toward longer wavelengths. There is a broad symmetrical absorption centered at 2.049 microns and three narrow absorptions at 2.3460, 2.3573, and 2.3634 microns. There are strong composite absorptions at 3.84, 3.95, and 4.75 microns in the MIR.

END_SPECTROSCOPIC_DISCUSSION.

SPECTRAL_PURITY: 1a2a3_4_ # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns