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Video title:

Testing eBay Molecular Sieves

Upload date:

October 10 2016

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Video description:

In this video we test molecular sieves bought from eBay for their authenticity and quality and compare them to authentic lab grade molecular sieves. Molecular sieves are used for drying solvents by selectively removing water. So to test it we simply add water to activated molecular sieves. There should be a temperature spike as they absorb water. The speed and intensity of this temperature spike roughly correleates to their quality. Low grade molecular sieves spike very slowly and not very high while fake sieves don't spike at all. Molecular sieves type 3A are selective toward water and not methanol. So to test for selectivity we simply add methanol. If these sieves are high quality type 3A then they shouldn't absorb methanol and should give no temperature rise. Low grade molecular sieves will temperature spike indicating poor selectivity. Donate to NurdRage! Through Patreon (preferred): Through Bitcoin: 1NurdRAge7PNR4ULrbrpcYvc9RC4LDp9pS Glassware generously provided by Use the discount code "nurdrage" for a 5% discount. Social media links: Twitter: Facebook: Instagram: This video generously sponsored by my patrons: Jon Stanovich Michael Zappe Emil Mikulic Alex S. Zane Bacon Lord Martin Hill Matthew Brunette Max Loutzenheiser Simon Bitdiddle Cullen Purkis Carl Potter Phillip Hutchings Roger Martel DuVigneaud Bryan Boettcher Dror Kronstein Michael Gregg Syam Krishnan Robert Boll Nick Kinnan doug dysart william tips Daniel Astbury Shutaro Highwind Stephen Stair Bobby Nansel Andrea Nall Dom Vasta Tyler Bushey Michael Mark Rose Uocjat Marius Klimantavičius Dino Capiaghi Jacob Gruber steve Antton Tapani Matthew Baggett Ben Anderson Jeremy Porter Chase Curtis Connor Reed Wolf Bennett Christian Cooper Pablo Soares Matt Sieker Samuel Pelzer Wesley Gardner Gabriel Jeantelot Kremling Brian Nietfeld Jean-Marc Bélisle Leon Verrall Feliksas Egan Loughran George Jefferies Syniurge evan Applied Science Micha Gorelick Hanna Anderberg Marcio Yukio Teruya Timothy Vincent Collin B Douglas Daniel L. Michal Z Florent Parent Thor Danny Chan Miguel-Angel Gutierrez Casey Kikendall David Drueding Kay Bærulfsen Alec Posney Craig M. Mark Beeunas David Craig House Pascal De Lisio Tazobactam Star Ape Emil Lund Jonathan Bear Joshua Crager Rebecca Chung Zach Schneider cj6xu6ru Johann Massyn Goodwine Meyer Bill Noren Kevin Mills Mike Troester Joshua Books OpenArms Jason Brammer Paul Grodt Mark Keibler Bas Hessels Joshua Rogers upsidedownoj Julian Nicolai Herbert999 Myndert Papenhuyzen Dean Leggo Tyler Faruque Ross Clark Damien P Kevin C Akshay Joshi Rob Parker Robin Beckett Kamen Milchev James McIlhargey LVE Marc Ethier rd Bob Drucker Kelvin Sac LeGaie Aner Nitsan Donald W Henry Wu Ricardo Hy Diep John Wasser Jeffrey Morse Braxton Thomason Åsmund Tveten CNK054so Essimage Marius Grey Shot Leonard Marshall jMe4505 Timothy Glore

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