We present the structure of anhydrous sodium carbonate at room temperature (phase gamma) and 110K (phase .delta.) based on X-ray data. The incommensurate phase was determined 30 years ago in harmonic approximation, the commensurate phase at 110K is presented for the first time.
We present the structure of anhydrous sodium carbonate at room temperature (phase gamma) and 110K (phase .delta.) based on X-ray data. The incommensurate phase was determined 30 years ago in harmonic approximation, the commensurate phase at 110K is presented for the first time. (en)