An efficient process for pretreatment of lignocelluloses in functional ionic liquids was written by Dong, Shi-Jia;Zhang, Bi-Xian;Gao, Yun-Fei;Hu, Xiao-Mei. And the article was included in International Journal of Polymer Science in 2015.Safety of 1-Methyl-1H-imidazol-3-ium chloride This article mentions the following:
The complex structure of the lignocelluloses is the main obstacle in the conversion of lignocellulosic biomass into valuable products. Ionic liquids provide the opportunities for their efficient pretreatment for biomass. Therefore, in this work, pretreatment of corn stalk was carried out in ultrasonic-assisted ionic liquid including 1-butyl-3-methylimidazolium chloride [BMIM]Cl, 1-H-3-methylimidazolium chloride [HMIM]Cl, and 1-(1-propylsulfonic)-3-imidazolium chloride [HSO3-pMIM]Cl at 70掳C for 2 h.We compared the pretreatments by ionic liquid with and without the addition of deionized water. Fourier transform IR spectroscopy (FTIR) and SEM were employed to analyze the chem. characteristics of regenerated cellulose-rich materials. [HMIM]Cl and [HSO3-pMIM]Cl were effective in lignin extraction to obtain cellulose-rich materials. FTIR anal. and SEM anal. indicated the effective lignin removal and the reduced crystallinity of cellulose-rich materials. Enzymic hydrolysis of cellulose-rich materials was performed efficiently. High yields of reducing sugar and glucose were obtained when the corn stalk was pretreated by [HMIM]Cl and [HSO3-pMIM]Cl. Ionic liquids provided the ideal environment for lignin extraction and enzymic hydrolysis of corn stalk and [HMIM]Cl and [HSO3-pMIM]Cl proved the most efficient ionic liquids This simple and environmentally acceptable method has a great potential for the preparation of bioethanol for industrial production In the experiment, the researchers used many compounds, for example, 1-Methyl-1H-imidazol-3-ium chloride (cas: 35487-17-3Safety of 1-Methyl-1H-imidazol-3-ium chloride).
1-Methyl-1H-imidazol-3-ium chloride (cas: 35487-17-3) belongs to imidazole derivatives. Among the different heterocyclic compounds, imidazole is better known due to its broad range of chemical and biological properties. Imidazole has become an important synthon in the development of new drugs. This ring system is present in important biological building blocks, such as histidine and the related hormone histamine.Safety of 1-Methyl-1H-imidazol-3-ium chloride
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem