Question

formulae of zeolite and explain how can permanent hardness be removed by using zeolite and also write its equations​

Answer 1

=> Zeolite is micro-porous mineral which is used as catalyst in many industrial purposes such as water purification and air purification. The zeolites are hydrated aluminosilicates and general composition AlxSiyO2(x+y) (without water molecules). Zeolites are two types natural and synthetic or artificial. The natural zeolite that is used for water softening is gluconites or greensand. Permutit is the synthetic zeolite that is most used in water softening and its chemical formula is Na2O, Al2O3, nSiO2, xH2O. These are used as ion exchanger and odor removal in water softener. Permutit are more porous, glassy, and have higher softening capacity than greensand.

=> Zeolite can be easily regenerated. When Ca2+ and Mg2+ ions containing hard water is passes through a bed of sodium zeolite, the sodium ions are replace by the calcium and magnesium ions.

Na2Ze + Ca(HCO3)2 → 2NaHCO3 + CaZe

Na2Ze + Mg(HCO3)2 → 2NaHCO3 + MgZe

Na2Ze + CaSO4 → Na2SO4 + CaZe

Na2Ze + MgSO4 → Na2SO4 + MgZe

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Answer 2

Answer:

NaAlSi2O6-H2O is the formula

Explanation:

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