The BlackBoards Nemesis (Rael Cherry)
What products are Calcium Carbonate found in?
Physical properties of Calcium Carbonate?
Chemical Properties of Calcium Cabonate?
Calcium carbonate shares the typical properties of other carbonates. Notably: it reacts with strong acids, releasing carbon dioxide: it releases carbon dioxide on heating (to above 840 °C in the case of CaCO3), to form calcium oxide, commonly called quicklime, with reaction enthalpy 178 kJ / mole:
What uses are there for Calcium Carbonate?
Calcium carbonate also is used as an antacid to relieve heartburn, acid indigestion, and upset stomach. It is available with or without a prescription. This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.
The Impact Calcium Carbonate has on lives?
9 Things You May Not Know!!!!
1.Calcium carbonate – plant or animal or both?
Limestone is an inorganic, sedimentary rock formed from the remains of microscopic animals or foraminifera. Chalk was also thought to be derived from foraminifera but in 1953 was shown to be largely composed of coccoliths, a lime-secreting algae. So both.
2.The world's oldest building is made of calcium carbonateKhufu's Pyramid, usually referred to as the "Great Pyramid", is the world's oldest structure and consists of 2.5 million limestone blocks, each one weighing an average of 2.5 tonnes.
3.Chalk whiting – a Saxon connection
Ground Chalk has been commonly known for centuries as Whiting. It is believed 'whiting' is derived from the Saxon word, 'Hwíting-melu', which literally means 'whitening powder'.
4.Calcium is the fifth most abundant element in the body
Calcium is an important structural component of bones and teeth and also is necessary for the normal function of all muscles and nerves.
5.When pasta was made from chalk
Pasta, the Italian term for dough originally referred to how painters produced their pastel chalk. They kneaded chalk, pigment powder and an aqueous binder into uniform dough from which pencils were formed and finally dried.
6.Calcium carbonate exists only on Earth and possibly on Mars
In Shergotty, India a meteorite fell from the sky which is believed to have originated from Mars. The meteorite contained calcium carbonate, as well as traces of gypsum.
7.Blackboard chalk isn't chalk
The base of pastel chalks is not calcium carbonate but calcium sulphate (CaSO4), which is derived from gypsum (CaSO4-2H2O). Pastels also contain clays and oils for binding and strong pigments.
8.Chalk and Cheese – a scam in the Middle Ages
14th century Welsh market traders used to try to pass chalk off as a hard cheese on unsuspecting customers, hence the popular term 'like chalk & cheese'
9.The white cliffs of Dover are “rare”
Though white cliffs are fairly common in England the only other chalk cliffs in the world, are in Northern Ireland, France, Denmark and Germany. Chalk geology is rare in the World, confined to northwest Europe; thus it is of global importance.