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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: local link web link

TITLE: Ammonium_Chloride GDS77 DESCRIPT

DOCUMENTATION_FORMAT: Man_Made

SAMPLE_ID: GDS77

MATERIAL_TYPE: Chloride

MATERIAL: Ammonium_Chloride

FORMULA: NH4Cl

FORMULA_HTML: NH4Cl

COLLECTION_LOCALITY: Baker Analyzed Reagent

ORIGINAL_DONOR: Baker Chemical

CURRENT_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory

ULTIMATE_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory

SAMPLE_DESCRIPTION:

IMAGE_OF_SAMPLE:
Photo of sample

XRD_ANALYSIS:

40 kV - 30 mA, 6.5-9.5 keV
File: amchlr77_mdi
References: PDF2 #07-0007
Found: Salammoniac

Comments: Peaks have sharp tops but are slightly broadened; resolution of the alpha1-alpha2 components is only fair. Search-match confirms the identification as salammoniac (NH4Cl). The sample is primitive cubic with cell edge 3.87 angstroms, the same end member composition. The (110) at 2.73 angstroms has an unexplained, but very weak, shoulder extending to 2.83 angstroms.

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:

END_SPECTROSCOPIC_DISCUSSION.

SPECTRAL_PURITY: 1a2_3_4_ # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns