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GUN COTTON FLASHES......Just lighting up some gun cotton. Regular speed and slow motion

Just showing some stuff from a previous hobby. I had a bio lab for about a year and learned some stuff but it really was not that interesting to me. i did love making some penicillin. It has been so long i forget how i got the starting material.....lol. Might have just left the lids off the jars and it comes from the air and then i just isolated it and etc......ANYWAYS THAT WAS BACK IN THE DAY

Always remember you can use a water cooled condenser in place of an air cooled condenser or a vigoreux column. But neither a vigoreux column nor an air cooled condenser can be used in place of a water cooled condenser. So if you can only get one thing get a liebig or a dimroth. The liebig is LESS fragile but the dimroth is more efficient. If you have a lot of experience i would say get a graham and a liebig. ...............You can get away with a condenser as small as 100 mm but a 300 mm is best. ALSO a graham condenser is best to get if you can only get one BUT for a beginner if you can only get one I suggest the liebig condenser or the dimroth would be best really. The graham is better but it bumps the apparatus a lot. Every couple minutes it makes a banging sound cause EVEN IF YOU PUT THE graham condenser vertical, puddles will build up in the coils due to capillary action and adherence to the glass. And the puddles make pressure build up in the apparatus and then the pressure builds up enough to break threw the puddles and it creates a bump in the apparatus. This effect is great for things that boil at room temp or things that fume easily cause these puddles help contain the fumes to the apparatus. But the constant bumping every couple minutes is annoying and probably puts strain on the apparatus. The dimroth does not have this problem so some say it is the best. SO it all depends on opinion. But getting a spiral type is better for refluxing. And the liebig which is just a tube in a tube or the dimroth is best for distillations. The graham is best for distillations of liquids when the boiling point is close to room temp..................I will let you know when the video is done downloading and then uploading..............THE REASON I SUGGEST A LIEBIG OVER A DIMROTH even though the dimroth is better is because the liebig is more sturdy. The dimroth is more fragile. And while you are first learning it might be better for that reason. ALL THAT BEING SAID..........ANY CONDENSER WILL WORK GOOD IF YOU PUT ICE COLD WATER IN IT (and room temp water threw it for high temp distillations when you need an air cooled condenser) . Yes the graham coils are more efficient but the dimroth is almost just as efficient and the liebig is the least efficient but it still works. And never bumps the apparatus and is a LOT less fragile than the coil type condensers. And converts to a vigroreux coloum better. IT IS ALL ABOUT PREFERENCE REALLY. THEY ALL HAVE GOOD POINTS AND BAD POINTS.

I finish drying and then distill and then put the lower fraction back in a dean stark apparatus but found NO WATER. I wanted to then distill the lower fraction a second time but screw it. If i had i would have lost another 10 mL taking me from a 66% to a 50% yield. With an overall yield of 66% the average yield between the grignard reagent reaction and the actual grignard reaction would be 81% yield for each reaction. AT LEAST I IMPROVED

I extract and dry the product. Now i just need to distill it and get my yield

Making ethylmagnesium bromide which is a grignard reagent. And then did a grignard reaction by adding acetone. This making the tert pentyl alkoxide. I react it with acid to get the tert pentyl alcohol. In part 2 i will extract and clean up the alcohol. HAVE A GRIGNARD DAY!!!!!!!!!!!!

I believe the international space station exist and people are on it. But that being said i want someone to tell me how this astronaut does what he does in the video. I have a clip at the end of my video showing you what i am talking about and if you want to watch the whole video on the NASA channel here is the link https://www.youtube.com/watch?v=EYxvPIBmtiQ

Just showing how to extract amines and carboxylic acids using polar and non polar solvents

Just going over the stoichiometry and mistakes i made and the mechanism etc......Keep in mind that O2 and water and CO2 from the air will interfere with a grignard reaction and this reaction should be done under an inert atmosphere like helium or nitrogen or any noble gas. Also since the electrophile is a gas it probably needs done under a pressure higher than atmospheric pressure and i did not do those 2 things. I am not that far in my studies and skills yet.

Well finally done. Yes I got a terrible yield but this was my first attempt and pressure may be needed to use CO2 as the electrophile. On average l got a 26.1% yield on the grignard reagent reaction and the grignard reaction. Overall together with both reactions i got a 6.8% yield. Part 5 will go over the stoichiometry

Ether is flammable so do not do this around any flames or pilot lights etc.........Well i made some more diethyl ether so i am going to make some propanoic acid BUT if i wanted sodium propanoate i would take the salt i made at the end of this video and put it in some ANHYDROUS ethanol. Because the NaOH has been converted into NaHCO3 by now and it is insoluble in ANHYDROUS ethanol BUT sodium proanoate is soluble in ANHYDROUS [email protected] room temp it is about 1 gram of sodium propanoate in every 24 mL of anhydrous ethanol. And then filter out the NaHCO3 and then recrystallize the PURE sodium propanoate. Then i could drip sulfuric acid on the sodium propanoate to make glacial propanoic acid.............OR I CAN MAKE THE PROPANOIC ACID THE SAME WAY I MAKE IT IN PART 4

Ether is flammable so do not do this around any flames or pilot lights etc.........

Ether is flammable so do not do this around any flames or pilot lights etc.........Basically i already got my grignard reagent i made in a previous video called "ethylmagnesium bromide (grignard reagent) synthesis. SO in this video (part 1) i am bubbling ANHYDROUS CO2 in to the grignard reagent to make my tetrahedral intermediate which is an alkoxide salt. Part 2 i will finish up and then quench the reaction to make the propanoic acid. And then i will extract it out with several washings with diethyl ether. Which will remove the POLAR impurities. Part 3 i will base the ether/propanoic acid mixture to make sodium propanoate and therefor remove the NON POLAR impuirities. Part 4 i will acidify again and make the proanoic acid and then use ether to extract it from the water. Dry with CaCl2. Then distill off the ether to have some what pure and anhydrous propanoic acid that i can distill out at 141 C.

Just going over how to grease and lock your ground glass joints together.

PHOTONS REFLECT OFF OF MIRROR SURFACES. THE QUESTION AT HAND IS.......DOES BARYONIC MATTER ALSO REFLECT OFF OF MIRROR SURFACES??????????...............My attempt at humor

Well my nitrocellulose i made was a GIANT failure. Going to keep half of the cellulose and nitrate it a second time. See if that helps

This is a well know reaction to blow up people in a lab ESPECIAL when they try to "scale up" the reaction. ETHER IS VERY FLAMMABLE / EXPLOSIVE and if it is heated to much (from the heat from the reaction) then it will push all the ether out of the apparatus and in to the room in a vapor state...........VERY FLAMMABLE

This is a well know reaction to blow up people in a lab ESPECIAL when they try to "scale up" the reaction. ETHER IS VERY FLAMMABLE / EXPLOSIVE and if it is heated to much (from the heat from the reaction) then it will push all the ether out of the apparatus and in to the room in a vapor state...........VERY FLAMMABLE

This is a well know reaction to blow up people in a lab ESPECIAL when they try to "scale up" the reaction. ETHER IS VERY FLAMMABLE / EXPLOSIVE and if it is heated to much (from the heat from the reaction) then it will push all the ether out of the apparatus and in to the room in a vapor state...........VERY FLAMMABLE

Well it is finally done. Did it work????????????? I still do not know but in an upcoming video i will light it up on a short 30 to 60 second video in hopes of getting a lot of views to try to get some subscribers.

I talk about an easier method where you make the nitric acid "in situ". And also about mistakes in part 1 and 2 and safety concerns. There is no experiment in this part. Part 4 i will finish the experiment and try the nitrocellulose to see if worked.

This video was scary for me to make. Although watching it may be boring. I made this video separate because of the big safety concern about putting sodium metal in ether to dry it. If there is to much water in the ether it will catch on fire or explode. Professionals have been seriously hurt and a couple died from adding sodium to ether. DO THIS AT YOUR OWN RISK. I did end up stirring the sodium while still in the ether just to break it up some and make sure the sodium was free enough to grab the water but there were really no hydrogen bubbles formed. I am glad to see how dry i got the ether before i even used the sodium. It gives me a lot more confidence in my chemistry skills. Because before this i was curious how good i was doing with getting liquids anhydrous

I did not store my ether over NaOH or Na metal and i let my ether sit for to long. Seems like maybe 2 months. Just to make sure i got no peroixides formed in there i am going to clean it a bit and then dry it again. AAAAAAAAAHHHHHHHHHH!!!!!!!!!!!!!!!!!!!!!! That is what i get for procrastinating. Oh well.

Have a grignard reaction coming up and the easiest carbonyl for me to get is carbon dioxide. But it has to be anhydrous because grignard reactions are water sensitive. So since i am doing a practice run making the anhydrous CO2 i thought i would do a video about it and then when i do the grignard video i can skip over a lot of this information about how to make the CO2 anhydrous

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Created 10 months ago.

186 videos

CategoryScience & Technology

JUST OF VLOG OF THE EXPERIMENTS I DO OR LEARN ABOUT. I LOVE TALKING ABOUT CHEMISTRY SO IF ANYONE HAS ANY QUESTIONS PLEASE ASK. I WOULD LIKE THIS CHANNEL TO BE ABOUT PEOPLE LEARNING CHEMISTRY AND SHARING WITH EACH OTHER WHAT THEY LEARN OR JUST DEBATE ABOUT DIFFERENT REACTIONS. ALL ARE WELCOME IF THEY LIKE CHEMISTRY. PLEASE PLEASE PLEASE DO NOT LEAVE NEGATIVE COMMENTS OR START FIGHTS.