WebJan 1, 2010 · The sulfonic styrene resin P1 showed catalytic activity slightly superior to the non-catalyzed reaction. Although P2 polyacrylate show weak COOH acid sites not active … WebAug 27, 2024 · Six silica-supported phosphotungstic acid catalysts (PTA/SiO2) of different composition (20–70 wt% PTA content) have been synthesized and characterized by elemental analysis, BET, BJH, NH3-TPD methods, FT-IR spectroscopy of adsorbed pyridine and 1H MAS NMR techniques. The new composite catalysts were first applied in the …
Metal-free approach towards efficient synthesis of FDCA using a p ...
WebMay 13, 2024 · First Aid Measures. If an employee is exposed to the acid, then the material safety for p-Toluenesulfonic acid dictates a few different procedures depending on the exposure. Eyes —Immediately flush your eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids to be thorough. WebAn aromatic sulfonic acid, often used as a strong acid catalyst. p-Toluenesulfonic acid monohydrate has been used as a reducing agent for the reductive amination of ketones and aldehydes. In the presence of p-Toluenesulfonic acid monohydrate novel deazaflavin-cholestane hybrid compounds have been synthesized in a condensation reaction. 2 ... shape of a vigina
A Simple Procedure for the Esterification and Transesterification Using ...
WebOver the past few years the use of p-toluene- sulfonic acid (p-TsOH) as a catalyst has received considerable attention in different areas of organic synthesis21. Especially, it … WebSep 9, 2024 · •methanesulfonic acid (MSA) from ATOFINA Chemi- cals, Inc., • para-toluenesulfonic acid (PTSA) from Aldrich, • dodecyl benzenesulfonic acid (DDBSA) from Acros Organics, • amine blocked alkanesulfonic acid (MCAT™1219S and MCAT ™1300) from ATOFINA Chemicals, Inc., • amine blocked para-toluene sulfonic acid (BYK™ … Webobtained at 160 C for 16 h.22 Xu23 used glucose and p-toluene-sulfonic acid as raw materials to prepare solid acid (Gp–SO ... 2 /Fe 2O 3 solid acid catalyst and catalyzed the hydrolysis of wheat straw; 63.5% of xylose was obtained a er the treatment of hydrolysate with 1 M H 2SO 4 at 100 C for 1 h. In this study, we used sodium lignosulfonate ... shape of a turkey