Preparing Crystals of Copper Sulphate

To prepare crystals of copper sulphate, also known as blue vitriol or blue copperas, the following steps can be followed:

Materials Required:
- Copper sulphate powder
- Distilled water
- Beaker or glass container
- Stirring rod or glass rod
- Filter paper
- Funnel
- String or thread
- Pencil or stick

Procedure:
1. Start by measuring the desired amount of copper sulphate powder. The amount can vary depending on the size of the crystals you want to grow, but generally, a small amount such as 10 grams would be sufficient for a simple experiment.

2. Pour distilled water into a beaker or glass container. The amount of water should be enough to dissolve the copper sulphate powder completely. Generally, a ratio of 1:1 water to copper sulphate is used.

3. Slowly add the copper sulphate powder into the water while stirring continuously with a stirring rod or glass rod. Continue stirring until all the powder is dissolved. The solution should turn into a bright blue color.

4. Once the copper sulphate is completely dissolved, set the beaker aside and allow the solution to cool down. This step is important as it helps in the formation of larger and more defined crystals.

5. Prepare a filter paper and a funnel to filter out any impurities or undissolved particles from the solution. Place the filter paper inside the funnel and carefully pour the solution through it into another clean container. This will help remove any unwanted particles that may hinder the growth of crystals.

6. Now it's time to grow the crystals. Take a clean beaker or glass container and pour the filtered solution into it. Make sure to leave some space at the top to prevent overflowing.

7. Attach a string or thread to a pencil or stick, making sure it is long enough to hang into the solution without touching the sides or bottom of the container. Lower the string into the solution, allowing it to hang freely.

8. Place the container in a location where it won't be disturbed, and where there is minimal air movement. This will help prevent disturbances that may disrupt crystal growth.

9. Over time, crystals will start to form on the string as the water evaporates. The length of time required for crystal formation can vary depending on factors such as temperature and humidity. Generally, it may take a few days to a week for visible crystals to appear.

10. Once the desired size and number of crystals have formed, carefully remove the string from the container. You can gently rinse the crystals with distilled water to remove any excess solution or impurities.

11. Finally, allow the crystals to air dry completely before handling or displaying them. They can be stored in a dry place for future observation or used for various educational purposes.

Note: It is important to handle copper sulphate with care as it can be harmful if ingested or comes in contact with the skin or eyes. Always wear gloves and goggles while working with chemicals.

Crystallization is the process by which we can obtain crystals of copper sulphate. In this process, a few drops of dilute sulphuric acid is added to water. The water is then boiled & as it starts boiling, copper sulphate powder is added with stirring. ... After some time the crystals of copper sulphate separate out.