Table 2 Measured fractions of β-NaNdF4, NdF3, and NaF phases after volatilization of the water of crystallization from the samples at 500 °C

From: Rare earth metals production using alternative feedstock that eliminates HF

Heated fluoride salt

Weight % of phases in the samples after drying at 500 °C

NdF3

β-NaNdF4

NaF

NNF-A

35 ± 1

64 ± 2

1 ± 0

NNF-C

54 ± 2

41 ± 2

5 ± 1

NNF-N

46 ± 1

48 ± 2

6 ± 1

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