Hydrothermal interconversion of FAU-type zeolite in the presence of sodium and tetramethylammonium ions was written by Kweon, Sungjoon;An, Hyejin;Son, Yeo Myeong;Park, Min Bum;Min, Hyung-Ki. And the article was included in Microporous and Mesoporous Materials in 2021.HPLC of Formula: 75-57-0 The following contents are mentioned in the article:
Hydrothermal interzeolite transformation is one of the well-known methods for synthesizing zeolites with novel structures and/or compositions Since various crystallization factors can affect the interzeolite conversion process like in general hydrothermal synthesis, it is important to examine them. In this study, the interconversion process is explored of the FAU-type zeolite in the simplest interzeolite transformation system, containing tetramethylammonium (TMA+) and Na+ ions as structure-directing agents. The effects of various synthetic parameters, such as the concentration of OH–, Na+, and TMA+ ions, the Si/Al ratio, crystallization time and temperature, and types of inorganic and organic cations were investigated during the interzeolite crystallization In the optimal synthetic condition, the initial structure of parent high silica zeolite Y was transformed in the order of X-ray amorphous → low silica FAU → MAZ → SOD. The solid products obtained under the various crystallization conditions were characterized by powder XRD, SEM, framework IR, 29Si MAS NMR, elemental and thermal analyses, etc. to investigate the prevailing factor in each transformation step. The proper concentration of OH– in the synthetic mother liquor was determined to be the governing factor necessary to initiate the interzeolite transformation, and to expect a certain zeolitic phase by the structure-directing of inorganic and/or organic cations. This study involved multiple reactions and reactants, such as Tetramethylammonium chloride (cas: 75-57-0HPLC of Formula: 75-57-0).
Tetramethylammonium chloride (cas: 75-57-0) belongs to organic chlorides. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. The haloform reaction, using chlorine and sodium hydroxide, is also able to generate alkyl halides from methyl ketones, and related compounds. Chloroform was formerly produced thus.HPLC of Formula: 75-57-0
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics