Fig. 6 Vickers hardness of the system NaCl–Na2CO3 and the system KCl–
K2CO3. Solid and dotted lines connect average hardness value of each
composition, respectively.
Fig. 6 Vickers hardness of the system NaCl–Na2CO3 and the system KCl–
K2CO3. Solid and dotted lines connect average hardness value of each
composition, respectively.