aminotriazines, ureins, ureides, imidazolidones, triazones and hydantoins or mixtures of such compounds, and polymeric nitrogen compounds, e.g. polymeric amides made by the reaction of dibasic acids with diamines. The halogeno-1 : 3 : 5-triazines used as latent curing catalysts may be ...
Give the electron configurations of these ions, and indicate which ones are isoelectronic. (a) Ca^2+; (b) K^+; (c) O^2-. Which elements are represented by the following electron configurations? (a) 1s^22s^22p^63s^23p^63d^{10}4s^1 (b)...
α,α′-bis(arylidene)cycloalkanones were assessed by the reaction of cycloalkanones (cyclopentanone, cyclohexanone and cycloheptanone) with different arylaldehydes including benzaldehyde as well as aldehydes containing electron-withdrawing substituents, electron-releasing substituents or halogens (Table 2)....
摘要: PURPOSE: To efficiently work a cut end part of a workpiece having been cut, by moving fixing means to which the workpiece is fixed, and working means, relative to each other, along a predetermined path.收藏 引用 批量引用 报错 分享 ...