tag:blogger.com,1999:blog-8964719845369935777.post4643128492482355169..comments2024-03-27T21:23:40.339-04:00Comments on Chemjobber: Process Wednesday: molten sodium? Yeah, we got this.Chemjobberhttp://www.blogger.com/profile/15932113680515602275noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-8964719845369935777.post-31078117230862666202012-06-27T13:34:32.818-04:002012-06-27T13:34:32.818-04:00It seems that the acceleration in the final scale-...It seems that the acceleration in the final scale-up was due to poor vessel fit of the previous process (5L reaction volume in 100L nominal vessel, rxn vol below baffles). <br />They may have had to use the vessel that was available. <br /><br />The reaction mix includes some sodium alkoxide. Has anyone seen any corrosion of glass lining from Na alkoxide? I am working on a similar problem and there is precious little published data.Slawomirnoreply@blogger.comtag:blogger.com,1999:blog-8964719845369935777.post-72759322715172913422012-06-27T12:39:34.108-04:002012-06-27T12:39:34.108-04:00I've used sodium potassium alloy (NaK) in the ...I've used sodium potassium alloy (NaK) in the past. VERY reactive, but liquid at room temperature and ambient pressure.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-8964719845369935777.post-33247807473603601882012-06-27T12:21:41.094-04:002012-06-27T12:21:41.094-04:00I think they call them Hirschberg stirrers.I think they call them Hirschberg stirrers.andrewnoreply@blogger.comtag:blogger.com,1999:blog-8964719845369935777.post-33318080401374184202012-06-27T11:23:41.972-04:002012-06-27T11:23:41.972-04:00on small scale the preferred stirrer for crating m...on small scale the preferred stirrer for crating molten sodium dispersion for making sodium dust (in molten paraffin, for example) is a tight-coiled flexible thin steel wire spring that is roped into an "infinity sign" loop centered at the end of the shaft. Such flexible stirrer is very abuse resistant (by being bendable) and can be brought to high RPMs required for fine Na dispersions, for example when preparing sodium hydridemilkshakehttp://orgprepdaily.wordpress.comnoreply@blogger.com