论文部分内容阅读
早在1849年就发现重氮盐具有感光性能。它是由芳香族胺类和亚硝酸钠,在过量酸(盐酸或硫酸)存在下,于低温时产生化合反应而得:
As early as 1849 diazonium salt was found to have photosensitivity. It is derived from aromatic amines and sodium nitrite in the presence of an excess of acid (hydrochloric acid or sulfuric acid) at low temperatures resulting from the reaction: