Calcium Carbonate - Disintegrating Quicklime
When water is added to quicklime, a fierce exothermic reaction takes place as calcium hydroxide, slaked lime, is formed. To prepare this demo Dr Peter Wothers ordered Calcium Carbonate blocks...
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[MUSIC PLAYING] Earth. Billions of years ago, it was just a hot jumble of elements, which over time have solidified into the very rocks that we stand on. Right? OK. These rocks have come from a quarry in Portland, and they're made of limestone, which is a type of calcium carbonate. Masons would use these blocks pretty much as they are in the construction industry. These rocks have been formed over millions of years from shells like this. So these have just collected at the bottom of the ocean and been compressed, and we can actually even see some of the shells in this rock here. Because the shell and the rock are made of the same chemical substance, calcium carbonate, they have the same chemical properties. So here we have some hydro...
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[MUSIC PLAYING] Earth. Billions of years ago, it was just a hot jumble of elements, which over time have solidified into the very rocks that we stand on. Right? OK. These rocks have come from a quarry in Portland, and they're made of limestone, which is a type of calcium carbonate. Masons would use these blocks pretty much as they are in the construction industry. These rocks have been formed over millions of years from shells like this. So these have just collected at the bottom of the ocean and been compressed, and we can actually even see some of the shells in this rock here. Because the shell and the rock are made of the same chemical substance, calcium carbonate, they have the same chemical properties. So here we have some hydro...
