Making a compound

[Rickerby]

Does anyone have an alternative to heating iron and sulfur to make a compound?

[lada]

Burning Mg in crucible produces MgO,
testing for H2 with lighter to make a "Pow" sound produces H2O, which you can test with Co paper
thats all I can think of this late in a week.
Lada

[smeee]

Magnesium ( in crucible ) and Oxygen gives Magnesium oxide

[vlclabbie]

Hmmmmm a campsite with fencing & hippies or nudists gives a compound..... but I fear nudists may have been listed on the banned list of experiments?! So hippies it is.... now where did I put them.......


Oooh I crack myself (& probably nobody else!!!) up!!

[rodannt]

You crack me up
Must be a "Victorian" sense of humor

[Jen2]

Does anyone have any other suggestions?
We never have much success with the iron and sulphide and were looking for a second demonstration after doing the Mg and O2 one.

[Graham Kemp]

The iron and sulfur experiment is a classic for a reason. I can't think of anything else that would do the job.

Both elements are solids at room temperature, as is the product. They do react well when heated, as long as you mixed them throughly beforehand. The change is clearly visible.

In addition, iron is magnetic, so powdered iron and sulfur mixtures are (somewhat) easily seperated. Iron sulfide is not magnetic, so you can demonstrate that a chemical change took place.

The main downside is that you have to use cheap, disposable test tubes because about the only way to get the lump out is to smash the glass. I've never liked that.