2. Proposed Species after Each Decomposition Step upon Heating.

	mass loss
decomposition step and temperature	actual (%)	theoretical (%)	primary species present at end of decomposition step
1 (<200 °C)	14.51	N/A	neodymium citrate, residual organics (e.g., HMTA, urea)
2 (∼225 °C)	22.95	N/A	neodymium citrate, residual HMTA and urea decomposition products
3 (∼320 °C)	25.06	N/A	neodymium aconitate (possibly some residual neodymium citrate)
4 (∼420 °C) and 5 (∼550 °C)	9.30	9.34	neodymium carbonate
6 (>570 °C)	7.01	7.90	neodymium oxide