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How can iron and sulphur be seperated?

Updated: 8/10/2023
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12y ago

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The separation technique, magnetic separation is used to separate a solid-solid mixture. But WHAT IS A SOLID-SOLID MIXTURE ? It is a mixture made up of solids that are physically combined. Like..

SULFUR &IRON FILLINGS

The iron fillings are magnetic. That is why a magnet is used to separate the mixture. Want to know how?

Here are the steps !

1. Grab a magnet and hold it above the mixture to attract the iron fillings.

2. Gather the extracted iron fillings in another container.

3. Use the magnet again on the newly gathered iron fillings in the container to ensure that we obtain pure iron fillings only.

4. And woila ! We've separated the mixture !

What have we obtained ?

When the magnet was moved through the mixture, it attracted the iron filling but not the sand. This is how magnetic separation is used to separate mixtures.

Magnetic separation is also used in the real world.

REFLECTION !

I think magnetic separation is a very handy technique ! Imagine accidentally mixing iodine and sand. Everyones first reaction would be 'Oh no! How on earth am I to separate these now? Might as well buy a new one.' . But with this technique, we can separate the mixture faster than you can say butterscotch !

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12y ago
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12y ago

A temporary magnet (i.e. an electromagnet) can be used to separate elemental sulphur from elemental iron. When the magnet is switched on, the magnetic iron particles are attracted to the magnet, pulling them out of the iron-sulphur mixture. The non-magnetic sulphur particles are left behind. The iron can be collected from the electromagnet by moving it to another place, then switching it off, dropping the iron particles.

Iron-sulphur compounds, such as pyrite (FeS2) can be separated by a process known as electrolysis. In this process, the compound to be separated is melted or dissolved. Then, direct current electricity is passed through it. At the negative electrode, or cathode, where electrons enter the compound, positively charged iron ions are neutralized by adding electrons, forming iron metal. At the positive electrode, or anode, where electrons leave the compound, negatively charged sulphide ions are neutralized by stripping them of excess electrons, forming elemental sulphur.

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12y ago

You cannot separate it with a magnet because during the chemical reaction, the iron has lost its magnetic attraction. the only way to separate them out again is to perform another chemical reaction.

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11y ago

Magnetically remove iron powder followed by dissolving sulfur powder in carbon disulfide (!flammable!) and filtering off the leftover iron sulfide.

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13y ago

Use another chemical reaction, which one I am not sure.

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13y ago

the magenet lifts all the iron up and then they can be separated

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11y ago

Magnetic Separation is used as magnet attracts iron and sulphur is left behind.

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Q: How can iron and sulphur be seperated?
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