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
This Is Acid This Is Acid "This Is Acid," also known by its full title, "This Is Acid (A New Dance Craze)," is a number one "Billboard" Hot Dance Club Play chart single by Chicago house music DJ and record producer Maurice Joshua, who recorded the track under his first name "Maurice." It reached the top spot in April 1989 and stayed there for two weeks. The song contains spoken lyrics performed by male singer "Hot Hands" Hula Mahone. The lyrics introduce the listener to the Chicago acid house sound. The original 4:56 version—made with only a Roland TR-808 drum machine, Roland TB-303