Ground-level ozone is an air pollutant with harmful effects on the respiratory systems of animals and humans. Ozone in the upper atmosphere filters potentially damaging ultraviolet light from reaching the Earth's surface.
Corundum is the most common naturally-occurring crystalline form of aluminium oxide. Much less-common rubies and sapphires are gem-quality forms of corundum with their characteristic colors due to trace impurities in the corundum structure.
Aka: Sal Volatile. When crushed is used as smelling salts.
A highly corrosive and toxic strong acid. Common uses include as a cleaning agent and in explosives (e.g dynamite), and as one of the key components of Nitroglycerin.
It is prepared industrially from lead(II) acetate and carbon dioxide. It occurs naturally as the mineral cerussite
Used as a rising agent in baking. Also known as Sodium Bicarbonate, bread soda, cooking soda, bicarbonate of soda.
Aka: Limestone; calcite; aragonite; chalk and marble. A common substance found in rock in all parts of the world, and is the main component of shells of marine organisms, snails, pearls, and eggshells. Calcium carbonate is the active ingredient in agricultural lime, and is usually the principal cause of hard water. It is commonly used medicinally as a calcium supplement or as an antacid
Baking Soda. Used as a rising agent in baking. Also known as bread soda, cooking soda, bicarbonate of soda.
Aka: Pearl Ash and Potash. Potassium carbonate is used in the production of soap and glass.