Copper aspirinate Copper aspirinate Copper(II) aspirinate is an aspirin chelate of copper(II) cations (Cu). It is used to treat rheumatoid arthritis. Copper aspirinate can be prepared by several methods. In one route of preparation, an excess of acetylsalicylic acid is dissolved in aqueous sodium carbonate. Sodium hydroxide is not suitable for this purpose, because it will hydrolyse acetylsalicylic acid ("ASA") into salicylic acid and sodium acetate. The resulting solution is then filtered to remove any undissolved acetylsalicylic acid and is mixed with a solution containing Cu cations (copper(II) sulfate is suitable), precipitating bright blue crystals of copper aspirinate immediately. The crystals can
Cupboard love by physiologist, Ivan Pavlov. It supports assumptions that form the foundation of behaviorism. These basic ideas suggest that all learning occurs through interactions within the environment, and that environment shapes behavior. Various similarities exist between cupboard love and classical conditioning. Pavlov, known for Pavlov's dog experiment, discovered that his dog would salivate at the sound of a bell, associating the ringing with food. Eventually, the dog would salivate each time he heard the bell ring. When there was no food, the dog would still show affection to Pavlov in an attempt to be fed. Similarly, the cupboard love theory suggests