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 year", "The Indian in the Cupboard" has received several literary awards across the years and is becoming regarded as a classic in children's literature. A list of the awards received is as follows: Because of the varying opinions on the subject matter and portrayal of Native Americans in the novel, the quality of the book is largely subjective. While it can be argued that the stereotypes perpetuated by the novel are unforgivable, advocates for book praise the novel on aspects of convincing characters, reader captivation and enchantment, and keeping in touch with young readers, among other things. The second book