A known weight of the cement sample is treated with acid and the insoluble residue mainly, containig silica is removed by filtration. Iron and aluminum in the filtrate are precipitated as their hydroxides and filtered. The resulting solution containing calcium magnesium is diluted to 250cm3 and supplied for estimation.
Answers & Comments
Answer:
A known weight of the cement sample is treated with acid and the insoluble residue mainly, containig silica is removed by filtration. Iron and aluminum in the filtrate are precipitated as their hydroxides and filtered. The resulting solution containing calcium magnesium is diluted to 250cm3 and supplied for estimation.