Copper aspirinate use of copper aspirinate as a pigment in PVC and Polystyrene has also been investigated. 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
The Indian in the Cupboard book, Omri receives wins first prize in a story-writing competition for his tale "The Plastic Indian," which is actually a recounting of his real adventures with the cupboard; everyone else assumes that Omri's story is fictional. Wanting to share his good news, Omri brings Little Bear and Bright Stars through the magic cupboard. Little Bear returns badly injured by the French soldiers he has been fighting in his own time. Omri attempts to bring back Tommy, the WWI field medic from the first book, but receives only Tommy's neatly folded uniform and medical bag, causing him to realized that Tommy