Piperazine is an organic compound that consists of a six-membered ring containing two nitrogen atoms at opposite positions in the ring. 103-76-4, formula is C6H14N2O, Name is N-(2-Hydroxyethyl)piperazine. Piperazine exists as small alkaline deliquescent crystals with a saline taste. Application In Synthesis of 103-76-4.
Zhang, Bengui;Zhang, Xueting;Liu, Qian;Fu, Yanshi;Yang, Zhirong;Zhang, Enlei;Wang, Kangjun;Wang, Guosheng;Zhang, Zhigang;Zhang, Shouhai research published 《 Robust Adamantane-Based Membranes with Enhanced Conductivity for Vanadium Flow Battery Application》, the research content is summarized as follows. Membranes with high conductivity, high selectivity, and high stability are urgently needed for high-power-d. vanadium flow batteries (VFBs). Enhancing membrane conductivity presents many challenges, often resulting in sacrificing membrane selectivity and mech. strength. To overcome this, new robust adamantane-based membranes with enhanced conductivity are constructed for VFB. Low-content basic piperazine (IEC = 0.78 mmol g-1) and hydrophilic hydroxyl groups are introduced into highly rigid, hydrophobic adamantane containing poly(aryl ether ketone) backbone (PAPEK) and then selectively swelled to induce microphase separation and form ion transport pathways. The highly rigid and hydrophobic PAPEK exhibits high swelling resistance and provides the membranes with slight swelling, high selectivity, and high mech. strength. The selective swelling temperature has a significant influence on the areal resistance of the resulting membrane, e.g., the PAPEK-130 membrane, when selectively swelled at 130 °C, has low areal resistance (0.22 Ω•cm2), which is approx. two-fifths that of the PAEKK-60 membrane (treated at 60 °C, 0.57 Ω•cm2). Consequently, the resulting PAPEK membranes exhibit low swelling, high selectivity, and low areal resistance, with the VFB constructed with a PAPEK-90 membrane exhibiting excellent energy efficiency (91.7%, at 80 mA•cm-2, and 80.0% at 240 mA•cm-2) and stable cycling performance for 2000 cycles.
Application In Synthesis of 103-76-4, 1-(2-Hydroxyethyl)piperazine is a useful research compound. Its molecular formula is C6H14N2O and its molecular weight is 130.19 g/mol. The purity is usually 95%.
1-(2-Hydroxyethyl)piperazine is a chemical solvent that is used for the absorption of amines and other compounds. It has been shown to have a high affinity for acidic substances, which may be due to its ability to form hydrogen bonds with them. 1-(2-Hydroxyethyl)piperazine is also used in sample preparation for the analysis of amines and other compounds in fruit extracts. The solubility of 1-(2-Hydroxyethyl)piperazine depends on the experimental conditions, including pH, temperature, and pressure. FT-IR spectroscopy has been used to measure the vibrational modes of 1-(2-Hydroxyethyl)piperazine molecules. The IR spectrum revealed that this compound contains a hydroxyl group and two fatty acid chains with one or more hydroxyl groups at their terminal end. The nmr spectrum showed that 1-(2-Hydroxyethyl)piperazine contains an NH proton as well as, 103-76-4.
Referemce:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics