Arthritis means joint inflammation.. It causes pain and swelling in the body's joints, such as the knees or hips. There are many types of arthritis, but osteoarthritis is the most common. Also known as degenerative joint disease or age-related arthritis, osteoarthritis is more likely to develop as people get older.
Hydrogen cyanide (HCN), sometimes called prussic acid, is a chemical compound with the chemical formula HCN. It is a colorless, extremely poisonous and inflammable liquid that boils slightly above room temperature, at 25.6 Â°C (78.1 Â°F).
Cyanide is the agent used in âgas chambersâ in which a cyanide salt is dropped into an acid to produce HCN. These chemicals âan acid and a cyanide salt-were found in several subway restrooms in Tokyo, Japan, in March 19953.