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Evaluation of Methods for Determining Nahcolite and Dawsonite in Oil Shales.

Authors
Huggins-CW; Green-TE; Turner-TL
Source
NTIS: PB 223 786 :21 pages
Link
NIOSHTIC No.
10009046
Abstract
To determine the nahcolite and dawsonite content in oil shales, the Bureau of Mines compared x-ray diffraction, infrared spectroscopy, thermal methods, and a previously published method by smith and young based on the selective solubility of sodium compounds. The smith and young method and a new method based on the weight of carbon dioxide produced by thermal decomposition are recommended for determining nahcolite. X-ray diffraction and the smith and young method are recommended for determining dawsonite. X-ray diffraction, infrared spectroscopy, and differential thermal analysis were useful for identifying other minerals in the samples.
Publication Date
19730101
Document Type
IH; Report of Investigation;
Fiscal Year
1973
NTIS Accession No.
PB-223786
NTIS Price
A03
Identifying No.
RI 7781
NIOSH Division
CPRC;
Source Name
NTIS: PB 223 786
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