| abstract |
NEW MATERIAL:A compound shown by the formula (n is 5-10) having three- dimensional molecular structure. n USE: Useful as a magnetic wave absorbing material, a toner material for color copy, especially a magnetic carrier contained in a toner material for color copy. n PREPARATION: A solution of a salt of chromium-oxalate complex is mixed with a solution of a cupric salt and blended with a halogen packing and precipitating agent to settle precipitate, which is filtered, washed with water and dried. n COPYRIGHT: (C)1992,JPO&Japio |