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1.1

Minor Versionm

by Vishal Bhatt

Introduction

We can separate the mixture of salt and sand by sedimentation, filtration and evaporation.

Video Overview

    • Although sand and salt aren't volatile chemicals, it will hurt if you let any of it get in your eyes.

    • Exercise caution when handling Bunsen Burner.

    • Do not touch the hot beaker.

    • Wash your hands after conducting the experiment.

  1. Collect sufficient amount of sand and salt in different glasses. Transfer two tablespoon of salt to the glass containing sand. Stir the Salt-Sand mixture well with a spoon .
    • Collect sufficient amount of sand and salt in different glasses.

    • Transfer two tablespoon of salt to the glass containing sand.

    • Stir the Salt-Sand mixture well with a spoon .

  2. Remove the bottle cap and cut the bottle in half using a cutter. Place the upper half of the bottle inverted on the lower half. Place a filter paper in the inverted part of the bottle. This acts like a funnel.
    • Remove the bottle cap and cut the bottle in half using a cutter.

    • Place the upper half of the bottle inverted on the lower half.

    • Place a filter paper in the inverted part of the bottle. This acts like a funnel.

  3. Add water to the sand-salt mixture. Wait till the sand settles down (Sedimentation). Gently pour the mixture into the empty bottle through the funnel (Filtration).
    • Add water to the sand-salt mixture. Wait till the sand settles down (Sedimentation).

    • Gently pour the mixture into the empty bottle through the funnel (Filtration).

  4. Salt solution gets filtered down the funnel and is collected at the bottom of the bottle leaving the sand particles in the filter paper. Collect the sand in a beaker and keep it aside. Take the salt solution (filtrate) in a beaker and heat it.
    • Salt solution gets filtered down the funnel and is collected at the bottom of the bottle leaving the sand particles in the filter paper.

    • Collect the sand in a beaker and keep it aside.

    • Take the salt solution (filtrate) in a beaker and heat it.

  5. Heat until the water evaporates leaving the salt behind.
    • Heat until the water evaporates leaving the salt behind.

    • Heat the salt solution until all the water gets evaporated.

    • Stir the Salt-Sand mixture in water well. Wait till all the sand particles settle at the bottom.

    • How much time does it require for the water to evaporate?

    • Is the amount of salt and sand, before and after the experiment the same?

Finish Line

Procheta Mallik

Member since: 05/02/2017

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