Deioniser Flashcards
Simple Definition of deioniser
-To chemically remove electrolytes from tap water by passing through column of ion exchange resin
-used in pharmaceuticals and lab
Components
1,receiving end (inlet)
2,resin column(body)
3,flow circuit
Water flow and regenerate flow
4,water pressure monitoring device
5,eluting end(outlet)
6,filter
Simple working procedure
1,receiving end connect to tapwater
2,open tap,allow water toflow slow
3,purifying water by removing electrolyte through resin column
4,passing through eluting end connected to closed chamber where purified water is collected
Advantage
-for electrolyte determination
-no heating so no fuel and electricity consumption takes place
Principle
-cations exchanged by cations
-hydrogen ions released by sulphate,bicarbonate ,resins which is released by exchange resin
-Hydrogen ions +hydroxyl ions =h20
Purity checking tests of deionised water
-chloride test
-sulphate test