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Synthesis and Characterization of Dawsonite.

PB211949

Publication Date	1972
Personal Author	Jackson, J.; Huggins, C. W.; Ampian, S. G.
Page Count	22
Abstract	Synthetic dawsonite has been prepared with crystallinity similar to that found in oil shale deposits of the Piceance Creek area of Colorado. Optimum experimental conditions were: an atomic ratio of 43 for Na/Al; temperatury 175 - 200C; pCO2 - 15 psig; and a reaction time of five hours. Chemical and spectrographic analysis revealed that the synthetic dawsonite (NaAl (OH)2CO3) was of high purity, and essentially stoichiometric. Similarity of the synthetic to natural dawsonite, demonstrated by X-ray diffraction, infrared spectrophometry, and electron microscopy, suggest its suitability as a standard. (Author)
Keywords	Aluminum ores Synthesis(Chemistry) X ray diffraction Electron microscopy Infrared spectra Oil shale Differential thermal analysis Carbonate minerals Dawsonite
Source Agency	Invalid Source Agency Code
NTIS Subject Category	84F - Space Safety
Corporate Authors	BUREAU OF Mines, Washington, D.C.
Supplemental Notes	Prepared in cooperation with College Park Metallurgy Research Center, Md.
Document Type	Technical Report
Title Note	Rept. of Investigations.
NTIS Issue Number	197221

Synthesis and Characterization of Dawsonite.

Synthesis and Characterization of Dawsonite.
PB211949

Publication Date	1972
Personal Author	Jackson, J.; Huggins, C. W.; Ampian, S. G.
Page Count	22
Abstract	Synthetic dawsonite has been prepared with crystallinity similar to that found in oil shale deposits of the Piceance Creek area of Colorado. Optimum experimental conditions were: an atomic ratio of 43 for Na/Al; temperatury 175 - 200C; pCO2 - 15 psig; and a reaction time of five hours. Chemical and spectrographic analysis revealed that the synthetic dawsonite (NaAl (OH)2CO3) was of high purity, and essentially stoichiometric. Similarity of the synthetic to natural dawsonite, demonstrated by X-ray diffraction, infrared spectrophometry, and electron microscopy, suggest its suitability as a standard. (Author)
Keywords	Aluminum ores Synthesis(Chemistry) X ray diffraction Electron microscopy Infrared spectra Oil shale Differential thermal analysis Carbonate minerals Dawsonite
Source Agency	Invalid Source Agency Code
NTIS Subject Category	84F - Space Safety
Corporate Authors	BUREAU OF Mines, Washington, D.C.
Supplemental Notes	Prepared in cooperation with College Park Metallurgy Research Center, Md.
Document Type	Technical Report
Title Note	Rept. of Investigations.
NTIS Issue Number	197221