| 摘要 |
PURPOSE:To provide a compsn. for a metal cleaning agent which keeps the human skin free from chemical attack by mixing an etchable chemial material such as a sulfonic acid, carboxylic acid, inorg. acid, etc. as well as a nonioic surface active agent an an anionic surface active agent and neutralizing the pH of the mixture to a specific value with a neutralizing agent. CONSTITUTION:An aq. soln. contg. 0.01-40wt% an etchable chemical material consisting of at least one kind among a sulfonic acid or acetic acid and the deriv. thereof, oxalic acid, formic acid, a carboxylic acid such as alpha,beta-unsatd carboxylic acid and the deriv. thereof, arom. dicarboxylic acid, arom. tricarboxylic acid, etc., or an inorg. acid such as a nitric acid, sulfuric acid and phosphoric acid or the like, 1-40wt% a nonionic surface active agent and 1-40wt% an anionic surface active agent is neutralized with an aliphat. amine of 1-4C, ammonia, alkali metal, etc. to adjust the pH thereof to 5-8. The compsn. for a metal cleaning agent which obviates such a chemial attach by an acid and alkali even if said compsn. scatters and sticks to the human skind during use is obtd. |
