Why there is a difference in Analysis method for determination of CaO , Mgo and Chloride in Cement and Water .
In determining of CaO in water used Eriochrome Black T (EBT) indicator and Murexide indicator for MgO whereas In determination of CaO in water used Patton Reeder indicator and EBT for MgO in cement.
Also see method for Chloride determination in water and cement