describe how you would produce pure samples of iron and sulphur powders from a mixture of the two.

Sulfur (note the spelling) is soluble in a solvent like carbon disulfide, whereas iron is not. So

1. stir the mixture in to a small volume of CS2,
2. filter to recover the iron powder
3. evaporate the CS2 to recover the sulfur
4. grind the sulfur to a powder

An alternative is to slowly allow the poweder mixure to slide down a slope of say paper under which is a magnet. The iron powder sticks to the paper above the magnet and the sulfur powder continues on. This not give a particularly efficient separation.

To produce pure samples of iron and sulfur powders from a mixture of the two, you can follow a process called magnetic separation. Here's a step-by-step explanation of how to do it:

1. Obtain a magnet: You will need a strong magnet for the separation process.

2. Prepare the mixture: Mix the iron and sulfur powders thoroughly. You can do this by grinding them together using a mortar and pestle.

3. Attract the iron: Place the magnet near the mixture and slowly move it along the bottom of the container. The iron particles will be attracted to the magnet and stick to it, separating them from the sulfur particles.

4. Collect the iron: Once you have attracted a sufficient amount of iron particles, carefully remove the magnet from the container. Use a piece of filter paper or a small brush to scrape off the iron particles from the magnet and collect them in a separate container.

5. Separate the remaining sulfur: The sulfur particles that were not attracted to the magnet will still be mixed with the remaining mixture. To separate them, you can use a process called filtration. Pass the mixture through a filter paper, which will trap the sulfur particles while allowing the remaining powder to pass through.

6. Collect the sulfur: Once you have filtered out the remaining powder, carefully remove the filter paper with the trapped sulfur particles. Transfer the sulfur to a separate container.

By following this method, you will obtain two separate pure samples: one of iron powder and another of sulfur powder. It is important to note that the success of the process depends on the magnet's strength and the thorough mixing of the powders.