A mixture of branched chain hexane isomers with a boiling range of 50-65C is isolated from an inexpensive electronics part cleaner. This material is an excellent solvent for extraction, recrystallization, and chromatography. Recovery is between 85 and 92%, depending on actual hexanes content (The range is determined from the MSDS). The intro music clip is from "Stealing Fat" by The Dust Brothers. I believe this falls under fair use.

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Video explaining the 5 isomers of hexane.

isomer hexane hydrocarbon

In this episode of Scientific Tuesdays we will show you how to take a paper envelope and see directly through it, leaving no trace behind. We will explore how to take hexanes and put them to good use. Oh, science.... Add me on Facebook: facebook.com Add our FB App: apps.facebook.com Tune in each week for more Scientific Tuesdays! See you soon!

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In this video, Battelle scientists at Pacific Northwest National Laboratory demonstrate hydrogen sulfide undergoing the Antisolvent Swing Regeneration, or ASSR, process. They have pretreated a sorbent containing hydrogen sulfide and added hexanes on top of it in a test tube. Once the two are mixed together with a stirstick, the hydrogen sulfide bubbles to the top and evaporates. Toward the end of the video, the solvent and hexanes return to normal. Reactivation of the sorbent is as simple as removing the hexanes, leaving a reusable liquid.

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Hexane is hard to get... this video shows you an easier way.

Invisible Pape hexane

Messing around with liquid nitrogen in the lab at night: Freezing a septum, sticking my hand in it, freezing and melting hexanes, tossing it on the floor! I love liquid nitrogen, it's fun stuff. Also, sorry for the loud music in the background (the band is Perfume Tree), I didn't realize it was so loud.

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I'm exhausted. Can you tell?

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50ml of hexanes is placed in a beaker and lit on fire. The beaker is then placed on a rotating surface and a wire screen is placed around the beaker.

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With what may be the greatest name for a dangerous moto-cross racing track ever, the blonde Dustin Arvola shows us that the gas produced by hexane is even heavier than the hot air inside your head. Bazinga!

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Mrs. Barahona's Chemistry Honors class does the Flaming Vapor Ramp experiment.

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Production of Nylon-6,10 from a Sebacoyl Chloride/Hexane solution suspended on top of a 1,6-diaminohexane aqueous solution. At the interface of these two mixtures, a polymer (Nylon-6,10) is formed and will continually form when the interface is interrupted or removed. When all of the 1,6-diaminohexane is consumed, production of the nylon stops.

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This is the prelab video for CHEM 1020 Experiment 6: Thin-Layer Chromatography or TLC. TLC is a quick and easy way to analyze mixtures. Professional chemists use TLC all the time -- for instance, it's a simple way to tell whether or not a chemical reaction is complete. In this experiment, you'll be given an unknown mixture of over-the-counter drugs, and you'll use TLC to figure out how many substances are in that unknown, and you'll identify those substances by comparing them with known samples.

Anoka Ramsey ARCC Chem 1020 Prelab Chemistry Lab Thin Layer Chromatography TLC Unknown Mixture

Quantum dots are semiconductor nanocrystals on the scale of a few nanometers, or several hundred atoms. At this size quantum effects dominate and the electrons are quantum confined to narrow energy levels determined by the size of the particle. This means that the absorption wavelength the light can be fine-tuned and that quantum dots can be used to adjust the bandgap of the materials they are associated with. Quantum dots being explored for use in photovoltaics and in signal processing. This shows professional laboratory procedures for synthesizing quantum dots. For more info see Photontics wiki photonicswiki.org

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Imagine, your on a mobile toilet and when you get out.... you are in a office meeting ! Great toilet prank

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Organic chemistry: Electrophilic aromatic substitution (EAS) of benzene—halogenation, nitration, sulfonation, Friedel-Crafts alkylation and alkanoylation. Electron-withdrawing and electron-donating groups—activators vs. deactivators, ortho/para-directors vs. meta-directors. This is a recording of a tutoring session, posted with the students' permission. These videos are offered on a "pay-what-you-like" basis. You can pay for the use of the videos at my website: www.freelance-teacher.com For a list of all the available video series, arranged in suggested viewing order, go to my website. For a playlist containing all the videos in this series, click here: www.youtube.com (1) General mechanism for electrophilic aromatic substitution (EAS). Halogenation (2) Continued. Nitration (3) Sulfonation. Friedel-Crafts alkylation and alkanoylation (4) Continued (5) Activating vs. deactivating substituents (6) Continued. Digression on nomenclature (7) Activators and deactivators, continued (8) Ortho/para-directors and meta-directors (9) Continued (10) Continued. Directing effects for disubstituted benzenes (11) Continued (12) Some aromaticity and Huckels rule problems tags: educational college student education MCAT exam test

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How to refill a Zippo lighter. Intro music by Jay-Z and Nas, Song name Dead presidents.

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conformations of cyclohexane

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Free electricity through the air is what you get from the world famous Tesla Coil located at the esteemed Griffith Observatory

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My invisible paper :D

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