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Grade: 11
        What happens when hard water containing CaSO4 is treated with calgon
2 years ago

Answers : (1)

jitender
114 Points
							Calgon = Na6P6O18when hard water is treated with calgon CaSO4 is converted into CaCO3 which settle down as ppt and is removed from water so the hardness of water due to CaSO4 is removed  by Calgon by Ion-exchange method.
						
2 years ago
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