What is Lime Water?

• Lime water is the common name for a dilute aqueous solution of calcium hydroxide.

• Calcium hydroxide, Ca(OH)₂, is sparsely soluble at room temperature in water.

• "Pure" limewater is clear and colourless, with a slight earthy smell and an astringent/bitter taste. It is basic in nature with a pH of 12.4.

• Lime water is basic in nature because of the presence of Calcium Hydroxide in Lime water. As Calcium Hydroxide is a strong base and gives off two hydroxyl ions in, so lime water becomes basic in nature.

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Updated on: 10-Oct-2022

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