Chemicals and their harmful effects
9. Carbon dioxide : is an atmospheric gas composed of one carbon and two oxygen atoms.
Use : Liquid and solid carbon dioxide are important refrigerants, especially in the food industry, where they are employed during the transportation and storage of ice cream and other frozen foods.
Health risks: Inhalation Asphyxiant (suffocating) can cause hyperventilation.
10. Chloroform : It is a colorless liquid with a pleasant, nonirritating odor and a slightly sweet taste.
Use: Chloroform was used as an inhaled anesthetic during surgery. However, safer, more flexible drugs have entirely replaced it in this role. The major use of chloroform today is in the production of the Freon refrigerant R-22.
Health risk: Inhalation In high concentration may cause dizziness, unconsciousness, coma, and possible heart failure.
11. Cyanide: Hydrogen cyanide is a colorless gas with a faint, bitter, almond-like odor.
Use: used in lectroplating, gold mining, metallurgy and jewellery for chemical gilding, buffing, and extraction of gold.