Published 05/24/2022 at 971 × 708 in Strength of Salt Core Composed of Alkali Carbonate and Alkali Chloride Mixtures Made by Casting Technique Fig. 8 The X-ray diffraction pattern of NaCl–70 mol% Na2CO3. Fig. 8 The X-ray diffraction pattern of NaCl–70 mol% Na2CO3.