使用1 H和13 C NMR和UV光谱定量研究了五甲基苯(PMB)和三个四甲基苯(TeMB's)在浓硫酸水溶液中的化学行为。PMB磺酸以9/1/8的初始比例生成(质子化)六甲基苯(HMB)和2,3,4,5-和2,3,4,6-TeMB-1-磺酸底物转化率为36%;HMB与TeMB-1-磺酸的比率仍为1/1,唯一的后续反应是2,3,4,6-相对缓慢地转化为2,3,4,5-TeMB-1-磺酸是浓硫酸中唯一稳定的TeMB-1-磺酸异构体。
Ink Composition, and Ink Jet Recording Method and Recorded Matter Using the Same
申请人:Hanmura Masahiro
公开号:US20080047461A1
公开(公告)日:2008-02-28
Problem: To improve clogging and ink droplet deflection.
Solving Means: An ink composition comprising at least water, a colorant and an aromatic compound having a carboxyl group, which contains at least one member selected from the group consisting of a sodium ion, a potassium ion and an ammonium ion and also contains a lithium ion. Alternatively, an ink composition comprising at least water, a specific cyan dye and an aromatic compound having a carboxyl group, which contains a lithium ion and also contains a sodium ion and/or a potassium ion.