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
The Indian in the Cupboard all to life with the cupboard to serve as Little Bear's army. They also buy plastic miniatures of modern guns to give to the Iroquois, as well as a miniature Royal Marine figurine (who turns out to be a British corporal named Fickits) to instruct the Iroquois in their use. After Little Bear and his troops are sent back, a casual comment by Boone prompts Omri and Patrick to wonder if it is the key which is magical, rather than the cupboard. Omri climbs into a large empty chest while holding Little Bear's plastic tipi and has Patrick turn the