| 词条 | Schlenk-frit |
| 释义 |
A Schlenk-frit is a laboratory filtration device operating under inert gas conditions (schlenk conditions). It separates air- and water-sensitive suspensions into liquid and solid parts. A Schlenk-frit is made of a glass tube with a ground glass joint at both ends, a fused filter (a porous glass disk) and valves at both sides.[1] UseBefore usage, the Schlenk-frit has to be heated, to remove water traces. The Schlenk-frit is put onto the product flask using an inert gas counterflow and closed at the top end with a second flask. The whole is turned 180° to start filtration. The liquid parts of the reaction mix go through the filter while the solid parts remain. To speed up the filtration pressure can be lowered at the bottom part of the filter. Care has to be taken that the solvent does not evaporate. References1. ^{{cite journal | last = Ackermann | first = Jürgen | authorlink = | author2 = Reinhold Tacke1, Ulrich Wannagat, Ulrich Koke, Friedrich Meyer | year = 1979 | title = Derivate des 1-(4-Chlorphenyl)silacyclohexans mit 3-(Diethylamino)propyl- und 2-(Diethylamino)ethyl-Gruppierungen | journal =Liebigs Annalen der Chemie | volume =1979 | issue = 11 | pages = 1915–1924 | bibcode = | doi =10.1002/jlac.197919791128 | pmid = | arxiv = | id = | url = | format = | accessdate = | quotes = | language= }} {{chem-stub}}{{cite journal | last = Zhang | first = Jie | authorlink = | author2 = Alan M. Bond, Douglas R. MacFarlane, Stewart A. Forsyth, and Jennifer M. Pringle | year = 2005 | title = Voltammetric Studies on the Reduction of Polyoxometalate Anions in Ionic Liquids | journal = | volume = | issue = | pages = 5123–5132 | bibcode = | doi =10.1021/ic050032t | pmid = | arxiv = | id = | url = | format = | accessdate = | quotes = | language= }} 1 : Laboratory equipment |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。