Upper portion of hot metal mixer are lined with mullite bricks, which helps in resisting the
washing action of metal.
corrosion by layer of slag.
both (a) & (b).
neither (a) nor (b).
A Foxoyo User
Phosphoric acid is produced in wet process from phosphate rock and
The fugacity of liquid water at 298 K is approximately 3171 Pa. Considering the ideal heat of vaporisation as 43723 J/gm mole, its fugacity at 300 K would be
Sodium tri poly phosphate (STPP) is manufactured by reaction of phosphoric acid with sodium