dawsonite


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dawsonite

[′dȯs·ən‚īt]
(mineralogy)
NaAl(OH)2CO3 A white, bladed mineral found in certain oil shales that contains large quantities of alumina; specific gravity is 2.40.
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The peak shapes in Figure 3 do not change with the heating rate and this behavior implies that the decomposition mechanism of dawsonite does not change with the given heating rates [14].
Both dawsonite and nahcolite are members of the carbonate family.
2] on the decomposition of dawsonite and nahcolite at a fixed heating rate of 10[degrees]C/min.
Dawsonite synthesis and reevaluation of its thermodynamic properties from solubility measurements: Implications for mineral trapping of C[O.
Dawsonite in the Greta Coal Measures at Muswellbrook, New South Wales.
The hump near 300[degrees]C in Figure 3a and near 350[degrees]C in Figure 3b can be assigned to the dehydroxylation of gibbsite (y-Al(OH)3) present in the dawsonite sample [2, 13].
The IR bands associated with dawsonite clearly appeared at 1391, 1096 and 953 [cm.
These three bands are associated with the O-H and -CO3 vibrations of dawsonite.
The model of dolomite has a clear effect on dawsonite.
Addition of kerogen negligibly affects the dawsonite PCR model (Fig.
Analysis shows that for dawsonite, nahcolite and dolomite a five-principal-component model is adequate for acceptable prediction but quartz needs a four-principal-component model.
9) TOTAL 7900 215 Other resources Green River Basin, Wyoming Trona ~2800 57 115 Piceance Creek Basin, Colorado Dawsonite ~1300 26 Nahcolite 660 29 Natural gas >230 130 x [10.