Re-refinement of sodium ammonium sulfate dihydrate at 170 K
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The title compound, sodium ammonium sulfate dihydrate (SASD), NaNH4SO4·2H2O, a synthetic analogue of the mineral lecontite, is a well known ferroelectric. The crystal structure of the paraelectric phase has been re-refined at 170 K on the basis of single-crys... ...
