Thermal decomposition of dawsonite

X-ray diffraction, infrared spectroscopy, and thermal methods of analysis were used to resolve conflicting statements in the literature on the thermal decomposition of dawsonite (NaAl(OH)/sub 2/CO/sub 3/). By 350/sup 0/C the dawsonite structure collapses and water equivalent to the hydroxyl group and a large portion of the carbonate CO/sub 2/ are lost. This decomposition product then gradually loses the remainder of the CO/sub 2/ and remains amorphous until crystalline NaAlO/sub 2/ is formed at approximately 670/sup 0/C.

Data and Resources

Field Value
Citation "\"Huggins, C.W. Green, T.E.\""
Is NETL associated "\"Yes\""
NETL Point of Contact "\"Roy Long\""
NETL Point of Contact's Email "\"Roy.long@netl.doe.gov\""
NETL program or project "\"KMD\""
Publication Date "\"1/1/1973\""
Groups
  • AmeriGEOSS
  • Global Provider
Tags
  • amerigeo
  • amerigeoss
  • ckan
  • edx
  • energy
  • energy-data-exchange
  • geo
  • geoss
  • global
  • kmd
isopen True
license_id other-open
license_title Other (Open)
metadata_created 2025-11-25T23:10:24.286410
metadata_modified 2025-11-25T23:10:24.286415
notes X-ray diffraction, infrared spectroscopy, and thermal methods of analysis were used to resolve conflicting statements in the literature on the thermal decomposition of dawsonite (NaAl(OH)/sub 2/CO/sub 3/). By 350/sup 0/C the dawsonite structure collapses and water equivalent to the hydroxyl group and a large portion of the carbonate CO/sub 2/ are lost. This decomposition product then gradually loses the remainder of the CO/sub 2/ and remains amorphous until crystalline NaAlO/sub 2/ is formed at approximately 670/sup 0/C.
num_resources 1
num_tags 10
title Thermal decomposition of dawsonite