Cotinine is the compound that is produced when the body metabolizes nicotine. Because nicotine is found almost exclusively in cigarette smoke, testing the body for cotinine levels is an accurate and dependable method for gauging a subject's exposure to secondhand smoke.otinine is the compound that is produced when the body metabolizes nicotine. Because nicotine is found almost exclusively in cigarette smoke, testing the body for cotinine levels is an accurate and dependable method for gauging a subject's exposure to secondhand smoke.
Linen fiber is a cellulosic fiber and cellulose is the principle element of linen. Followings are the chemical composition of linen fiber. Cellulose: 92%. Hemi-Cellulose: 2%. Lignin: 4%. Others: 2%. This is calculated in 100%. The fabric which is produced from the linen fiber that is comfortable to wear.
Whatâs Going On. A chemical reaction has occurred! (A chemical reaction is the combination of two reactants to form something entirely new.) A penny is made of copper. The vinegar on the paper towel helps the copper in the penny easily react with the oxygen in the air to form a blue-green colored compound called malachite. This is similar to why the Statue of Liberty (which is covered with a layer of copper) has turned greenish-blue. The statue would naturally turn greenish-blue due to exposure to the oxygen in the air.