I purchased a cheap milligram scale on ebay and now my suggestions box looks like a "drug dealer starter pack" ...

@oliverrapp93

8 жыл бұрын

+REALhacksDAILY i did the same on amazon; dear lord i've got to be on 100 lists by now.

@magnesiumsniffer3370

5 жыл бұрын

too CHINATOWN! (batman transition)

@lalad5220

5 жыл бұрын

REALhacksDAILY hi, just curious...did you start your own lab? i’m just now thinking about it.

@aaronfkckcjc6910

4 жыл бұрын

@@lalad5220 drug lab? seems impolite to ask tbh :P

@getmeoutofsanfrancisco9917

3 жыл бұрын

I used those little things when I was in the midst of a bad IV fentanyl addiction years ago. Probably saved my life, although I had the tolerance of an elephant. Anyways I don't do drugs anymore.

Don't forget the required voice morpher.

@lalad5220

5 жыл бұрын

Lansa 🤣🤣🤣🤣🤣

@lenasnell1734

4 жыл бұрын

🤣😂🤣😭☠☠🍆

@khairpur1

3 жыл бұрын

@@lenasnell1734 don't understand why you added an eggplant

@lenasnell1734

3 жыл бұрын

@@khairpur1 rigamortis duhh

@Frepzter

3 жыл бұрын

@@lenasnell1734 why?

I happened to find a broken hotplate stirrer on eBay and for $16 USD. I took the risk and bought it. The nichrome heating element was burned out in two places (due to corrosion) and I was able to repair it myself. It works great now! eBay is a godsend for me finding used or vintage supplies for a shoestring budget and you will be surprised what reagents you can find there as well.

It's people like you that make me actually try in chemistry class. You really show how fun and interesting science is. Thank you so much for the videos!

Note on plastic bags polyethylene is quite permeable to water vapor and O2, thus is not suitable for long term storage of sensitive compounds. Polypropylene is one of the more moisture impermeable plastics, and PET is very O2 and CO2 resistant, but if a true vapor barrier is needed nothing beats glass with a foil lined cap. Just know that most foil liners are actually very thinly coated and are meant for pressure sealing or induction heat sealing (both one time use but very effective) This may be why you experienced a poor seal. Foil is also used for solvents that otherwise permeate or soften many plastics. I came across a test some time back where dessicants(I forget which but it was a commonly used anhydrous salt that works in the sub 10%RH realm) were placed in glass vials with PP caps and induction sealed foil liners, half the caps were removed the liner sliced(with care not to damage the seal area near the edge) and caps replaced. all vial were weighed at each step and at regular intervals and stored in a controlled atmosphere simulating "average" tropical humid conditions(I recall it was quite warm and 80-90%RH). at the end those vials with intact foil had not adsorbed a significant amount of moisture while those with cut foil relying only on the thick PP cap had absorbed a significant amount of moisture.

Your two most important pieces of equipment are your safety glasses and your 100% cotton lab coat. Put these on, before you do anything, that involves chemicals!

@TheChipmunk2008

8 жыл бұрын

+Tim Str. Yes. This.

@xdrippin645

8 жыл бұрын

+Tim Str. Nitrile gloves

@NikeTao

8 жыл бұрын

+Tim Str. Cotton? Don't you wan't something less permeable and absorbent?

@xdrippin645

8 жыл бұрын

what do I know I'm a ten year old

@Andrew-my1cp

4 жыл бұрын

@@NikeTao It only chars when it catches fire. Not the best for chemical resistance but if chemicals spill on you, you can take it off quickly. Other stuff will melt to your skin and makes fires so much worse. Cotton is the way to go.

Still working on the pyrimethamine synthesis, hopefully i'll start it this week. Probably with the distillation of toluene from paint thinner step.

@eshwarseplay

8 жыл бұрын

+NurdRage which condensers do u think one needs?

@Wouter_94

8 жыл бұрын

+LumTech add (distilled) water

@EarlofDestruction

8 жыл бұрын

+LumTech You mix it with something, duh. If it is in water, add more water.

@jeepmanxj

8 жыл бұрын

+NurdRage Have you considered contacting AvE? He is fairly popular on you tube and deals with tool "repair" He is also a subscriber of yours and may help you out with getting the hot plates repaired.

@GregoryBeckmanMHAF

8 жыл бұрын

+User Name I second that! he might repair it just so he can see how it ticks!

Pro-tip on the grease for ground glass joints, the amount you think is enough is ALWAYS too much. When I was first told that in my sophomore organic lab I didn't believe it, then sure enough it was true. For every, single, person, in, every, single, section, every, single, semester. Until you've done it a bit, always put substantially less grease than you think is enough, because what you think is always too much.

Thanks for every thing man, i've been watching on and off for a couple of years, i'm glad to see your getting more and more support. Eventually ill be able to contribute too, more than the commenting, liking and subscribing. Always happy when someone can take a hobby that they love and turn it into something more than that also while educating other. God bless you in everything you do sir.

Great information. In addition to "store bought" equipment, maybe you could refer to household or DIY stuff that limited budgets can manage.

Safety glove materials maybe are things you should tell about. For example the differences between nitrile and latex, how well they protect you from different chemicals. For example acetone gets through nitrile gloves almost immediately but latex gloves protect you approx. 2 minutes of submersion (I don't know why you should submerge your hand into acetone, but still it would be nice to tell people, that different materials protect differently with chemicals)

@AdityaMehendale

8 жыл бұрын

+NightOfFenix Gloves also protect your fingerprints from appearing on KZread videos :) A detail that Dr. Lithium seems to have overlooked...

@DarkFishCZ

8 жыл бұрын

+NightOfFenix I dont think that acetone can get through nitrile gloves easily. I use nitrile gloves when cleaning and washing glassware with acetone and i didnt notice any "leaks". Yes, you have a cold/wet feeling if you get acetone on your gloves, but its just acetone evaporating and thus taking some heat from your hands.

@NightOfFenix

8 жыл бұрын

+DarkFishCZ I work as a laboratory technician and I have read glove companies protection test tables that compared vinyl, latex and nitrile gloves and acetone was a chemical that only latex had any protection against it. Nitrile is excellent glove material but organic solvents tend to go through everything quite fast. I know that acetone is not that dangerous, but my workplace have a very strict policy of safety. Like that you MUST change gloves if any acetone spills onto your gloves.

Thanks for the response video! It's a huge help to those of us not yet at the fun part of college.

This series of videos is off to a great start! A video about cleaning glassware would be also be very helpful for beginners.

Oh i am so hyped for this series!

Thank you for the video! I look forward to part 2!

How I wish you'd made this series a couple of years ago--great video, as always. You may want to touch on the 24/29 joint, especially pointing out the intercompatibility of the two standards; I know that had me confused when I started out. Having used both now, I definitely prefer the US standard, but ISO joints are generally cheaper, and that's likely a big selling point to anyone who needs this video.

Nice to see you checking your balance. Didn't think that would happen out of industry

this was great, thanks to the patron who requested it!

Thank you so much for making this video!

For zip-lock bags. There is a type made that has a fold-in base then when the bag is filled expands and allows the bag to stand upright to a certain level (usually about 50%). This means bags can be stacked neatly in boxes with their labels being visible. The ones I use are freezer zip-lock bags by Glad.

An idea: for later in the series show a couple of example multi-piece glassware setups for specific purposes. Something like what a good TA would demo for a freshman chemistry-for-chemists class

Good video man! Keep up the good work

Great and extremely useful video! Thank you a lot!

Excellent video, this is going to be a great series! On a side topic. What about doing a video on making (di)nitrogen tetroxide and explaining the natural equilibrium of it and nitrogen dioxide??

been expecting this kinda video for so long

Very educational! Thank you.

Good work. Greetings from Portugal!!!

Very awesome and informative video! Thank you for sharing! :D

Can you discuss analytical glassware like volumetric pipets, volumetric flasks, and burets?

I love this intro on labware

I would love to see what standard-chemicals you have in your lab. Are there any specific ones every lab should have? I mean, it is kind of obvious that it depends on the type of lab you are running which exact chemicals you should possess. But which ones are so quintessential and valuable in every situation that you MUST have them?

@Finkelfunk

8 жыл бұрын

***** But what about basic stuff like Sulfur, Copper, Sodium, Chlorine, Hydrogen and Oxygen tanks or pH determining chemicals like Phenolphtalein? Just would really like to know :)

@davidzed3274

8 жыл бұрын

+Why not Dean Phenolphthalein is still very much used for titrations. Check out this site for chemicals you should own: woelen.homescience.net/science/chem/misc/chemicals.html (not my site)

@RaExpIn

8 жыл бұрын

+Finkel - Funk Here are most of the chemicals, that helped me to perform a whole lot of reactions. The ones in brackets are sometimes helpfull, but not a must, especially at the beginning. I performed lots of reactions without these. Acids: Sulfuric acid, hydrochloric acid, nitric acid, acetic acid, citric acid, ascorbic acid, oxalic acid, (phosphoric acid) Bases: Sodium hydroxide, potassium hydroxide, calcium hydroxide, ammonia Salts: Sodium/potassium bromide, sodium sulfite, sodium thiosulfate, sodium/potassium sulfate, calcium chloride, potassium nitrate, potassium chloride, potassium chlorate, potassium sodium tatrate, sodium/potassium iodide, potassium permanganate, iron(II) sulfate, iron(III) chloride, potassium chromium sulfate, zinc chloride (anhydrous), copper(II) sulfate, magnesium chloride/sulfate, silver nitrate, potassium/ammonium thiocyanate, ammonium chloride, potassium hexacyanoferrate(II) and (III), calcium carbide Elements: Magnesium (shavings + powder +g ranules), zinc (powder, electrodes, granules), copper, iron, carbon (electrodes), iodine, sodium Solvents: Ethanol, isopropanol, ethyl acetate, acetone, (diethyl ether, tertiary butanol) Others: Hydrogen peroxide (10% is enough for almost all applications) Organic: Phthalic anhydride, resorcinol, sucrose, glucose (benzoic acid, salicylic acid, formaldehyde, phenol, benzaldehyde)

@ImmaRealPepper

8 жыл бұрын

+NurdRage ^

@ammelr

8 жыл бұрын

+Finkel - Funk A lot of stuff is available at groceries or hardware stores if you know where to look. Home brew stores sell phenolphthalein. Not as useful anymore since the advent of cheap electronic pH meters, but good for demos. "Bar keeper's friend" is almost pure oxalic acid, citric acid is in the pickling section of most groceries, and boric acid is sold as an ant killer. Hardware stores have reasonably pure muriatic acid, sulfuric acid, NaOH, and solvents. Spectracide stump remover is pure KNO3, but Bonide stump remover is potassium metabisulfite. If you have the equipment and safety gear, you can use KNO3 and H2SO4 to make your own concentrated nitric acid - shipping charges for the stuff are pretty high, go figure. If all that fails, you can usually get it online.

Send the left hotplate stirrer to AvE if you don't need it anymore. He'll either get it to chooch, or it ain't choochable anymore. Nice vids btw.

@brandysigmon9066

5 жыл бұрын

Shiggydig Dugdigerrino yeah if he can't fix it he will use it to test hammers on

@csn583

4 жыл бұрын

I bought a $750 pro-grade stir/hot plate with built in temp control and integrated stand rod for $100 on eBay and all it needed was a set-screw tightened! YMMV, but people quit too easy.

"In our particular universe"

Nice vid man, keep up the good work!

Buying scales and ziplock bags totally won't look sketchy as fuck haha

Please go over the most common inlet size for cold water feed/return on condenser tubes so that I know what size tubing to get.

thanks alot for answering my request :) nice videos, i know it takes a lot of time to make those

great video! i get glass vials from my optician, she has tons of them, since monthly contact lenses are sent in vials from the manufacturers. those are discarded when the client picks the lenses and pass them to the plastic recepticals. so anyone can try the local optician 😀

Also, I would really like to see a video on what glassware you may use for distillation.

Thanks. This is helpful.

Another one similar to the labjack is an adapter that mates 24/40 ground glass joints to vials. Seriously it's so lovely to use that little bastard to get a vial onto a schlenk line or a rotovap without having to transfer chemicals out of the vial.

@NurdRage

8 жыл бұрын

+Andy Vander Weide I remember those! I used to have one back at my old lab. Do you know where i can buy one?

@ShadowDragon8685

8 жыл бұрын

+NurdRage Is this what you were looking for? www.amazon.com/Chemglass-CG-1318-40-Evaporator-Threaded-Adapter/dp/B005WX2I2S A quick Google found that. Amazon appears to be out of stock, but I'm sure a little more intensive googling can find it, assuming that's what you're looking for. [e]After another quick whip on the internet, it looks like you can buy them directly from the manufacturer, if that is what you're looking for: chemglass.com/product_view.asp?pnr=CG-1318

@swiminbandgeek

8 жыл бұрын

NurdRage know the one in my lab was there before i joined the lab so i have no idea where my PI bought it. So that being said Thanks ShadowDragon8685

@MrStiruam

8 жыл бұрын

+Andy Vander Weide These can be improvised from a septum and a NS24(F) to NS14(M) adaptor. Just make a hole in the septum, push the adaptor through the septum and connect the vial on the other side of the septum. :)

@swiminbandgeek

8 жыл бұрын

+MrStiruam Ya i've done that before while the only threaded vial adaptor we have in our lab was being used by someone else. I always felt like i got a better seal with the vial adaptor though, i always end up with noticeable but slow leaks with the improvised septum trick which that's fine on a rotovap you just have to wait a little longer to pull off solvent, however when i put stuff on the schlenkline i always get worried about condensing O2 in the cold trap so if im putting the vial on the schlenk line to get the last little bit of solvent off my product, i always use the ground glass adaptor

Awesome!

Nurdrage, Can you please do a video on Soxhlet extraction, its applications and the principle behind it?

yay its out now

In part 2, you should at least link to your video about dealing with stuck glassware (you made one, right?). I can't be for certain, but I'm fairly sure you did and it saved me (and an old- school Hastings Bubblemeter) when said Bubble meter was not assembled with any sort of lubrication and became stuck together.

I can do repairs of this nature. Power supplies are pretty simple stuff, burnt out heating elements would be a lot more difficult if parts need to be replaced.

I personally use PTFE tape since its much cleaner a safer way. Grease can easily get into your reaction mixture and contaminate your product. I only use grease when I run destilation under high vacuum (10 -2 Torr).

@davidzed3274

8 жыл бұрын

+DarkFishCZ Same here, grease isn't really necessary unless you use vacuum.

As amateur chemist I have used plastic bottles, cheap drinking glasses, plastic cups, glass bottles as lab glassware. Only thing I have bought is distillation apparatus because 2 taped bottles were too shady (but good enough for many things).

I like the silver nitrate on the lab grade scale.

You can find cloth mantles dirt cheep on ebay If you hold or buy a cheap stir plate only you can suspend the mantle above the stirrer and it will solve your needs

Thanks for your video! I am just setting up a home laboratory and I'm buying most of my equipment through ebay. But there doesn't seem to be much available at all in the way of ground glassware (well in the UK anyway) and a lot seem to be differing sizes, so seems almost impossible to buy what I need that will fit together. Can I please ask where you purchase your ground joint glassware from? Thanks

Great Video! Have you ever considered making such videos for classes? Schools or Universities?

One thing not mentioned is as long as the first number on a ground glass joint it the same they are compatible. 24/40 will fi in 24/29 but will extend 11mm into the flask. This is usually not a big deal, and vice versa 24/29 in a 24/40.

awesome!!!

I wouldn't mind fixing those magnetic stir plates *hint* *hint*

@stewarthornick5355

8 жыл бұрын

I'm sure a lot of people wouldn't mind that.

I have seen different shapes and sizes of distillers and alembics. Could you please explain the advantages and/or function differences of these pieces?

Honestly, I got my scale at the local head shop. Does just fine for all but the most precise work and came with a calibration weight. I don't think the girl behind the counter believed me when I said I needed a scale for home chemistry. hehe

Could you explain the standardized Ground glass joint sizes. I only ever worked with glasware labled NS... like NS24 for example is this system compattible with the 24/40 ?

In addition to the lab equipment, are you going to go over lab procedures/use? You know, like showing, on camera, how you grease up the ground glass joints so you can take them apart again?

Some good cost-effective sources for some of this equipment would be nice. A guide for the chemist on a budget would be nice.

@realname3538

4 жыл бұрын

China, Deschem is a good vendor for cheap and decently made lab glass.

@deafkite638

4 жыл бұрын

Karter sci has good price, especially with glassware sets. The glass seems good quality too.

@connorpoblete5090

3 жыл бұрын

Try different places but be careful before buying thing especially online don't want to end up being crap glass ware that could break on you essentially when deal with toxic or corrosive chemicals

btw could you show how vacuum destilation is done? i need to use PG or VG and i understand those must be destilled under vacuum

I think it would be useful to buy a simple organic chemistry kit, for glassware, if that's in the budget range

Maybe going over best power suppy to buy for general purpose electrolysis.

Can you please go over gas drying equipment? Like desiccant tubes? Thanks

I am high on the medication and I read it as NurdRed and NileRage. Crossover episodes, maybe?

you should show us how you wear eye protections ;)

you should have put things like spatulas and pipets in this video as they are absolutely vital for all chemistry

You tend to do many distillation and precipitation videos, this type of glassware has I high application to many of your experiments.

This might get covered in future videos, but I've noticed you never seem to mention using an aspirator to make a small fume hood for your lab. Many of your videos say "Do this outside or in a fume hood" but never mention this. Is this just not effective for most things that have toxic fumes, or have you perhaps not heard of it before? At my university the freshman chemistry labs don't have fume hoods, so the few times they have dangerous fumes coming off they run an aspirator and connect it to a funnel with a rubber hose, then use a little clamp to hold the funnel over the beaker so that the aspirator sucks out any of the fumes.

what's the best counter surface material to work on? like most resistant to chemical spills etc.

HI, I'm an amateur chemist, currently i can only do experiments like recrystallization and such. But i want to get more into the types of chemistry that you do, so i was wondering if you could give me a list of the equipment you mostly use. Im also from Canada so its not always easy for me to get all of these. Thanks

United Nuclear has sets of cheap beakers and Erlenmeyer flasks. I picked up a set of each as a starting point. My other glassware came mostly from ebay. If you spend some time on there you can find some good deals. I ended up picking up some stuff that uses stoppers because it was cheap. My distillation setup uses stoppers. I was lucky to find a stopper compatible still head to use with my stopper liebig condenser. I really wish I had gone with ground glass from the beginning. The "student grade" distillation setups are very tempting due to the price. However it's with spending a little more or hunting around on ebay for a ground glass setup. My soxhlet extractor setup uses ground glass joints. I have seen just how practical ground glass joints can be. So at some point I need start hunting around on ebay for ground glass parts for distillations and refluxes. Instead of grease I use PTFE tape from the plumbing section of the hardware store. It's cheap, readily available, and has worked well so far. Also, he failed to mention Keck clips. Keck clips are clips designed to hold ground glass joints together. They are VERY handy to ensure that your glassware doesn't come apart in the middle of an experiment. I personally would never use ground glass joints without Keck clips.

@davidzed3274

8 жыл бұрын

+Trans Feminist Autism United Nuclear's glassware is overpriced and of poor quality. I agree with you that ground glass is much better than corks.

@jennoscura2381

8 жыл бұрын

+David Zed Do you have any suggestions for a better places to buy inexpensive glassware?

teach us about peroxide lab setups and reactions involving peroxi compounds...

Neat.

2:35 You've got two small Po210 alpha-ray-sources in order to eliminate electrostatic charge?

I really want to make my lab where I can perform Physics & Chemistry experiments alongside my fascination for Electrical & Aerospace engineering, its bound to have more expensive things than the average bio lab, but its honestly one of my dreams.

Could you please explain when and how a heating mantle should be used? Also, a mechanical stirrers, condenser types and some rare laboratory equipment would be nice to cover. And how to prepare room for home lab!

@marcingoawski9305

8 жыл бұрын

I've found a strange piece of equipment: allegro.pl/luk-wielokrotny-krowka-szlify-19-26-tubus-pp-i4847674698.html Could be translated as "multiple angle, cow" but what we call cow here where I live is something different. Why would you evere need so many joints (and a hose addapter) connected to one point at that many different angles?

@lee4hmz

3 жыл бұрын

@@marcingoawski9305 The link no longer works, but this sounds like a "cow" adapter, which lets you separate multiple products from a distillation without opening the system (such as when the system is under vacuum). NIleRed used one in one of his videos.

Hey NurdRage! Could you make Acetaldehyde synthesis by the oxidation of ethylene with the Wacker process? I am really scratching my head about this mater because theoretically it's easy to make a 2CH2=CH2+O2 → 2CH3CHO reaction. But how to do it in practice? I would really appreciate your help.

I am a Chemistry major and I am wondering what do you do for a living? So far, I have no idea what I want to do and would like some ideas

Something to clean up all this mess once used would be good

Please do the glassware video!

Here is an unusual question for you: What If I want to make my own oxygen and compress it into a tank. What kind of compressor do I need?

What is a good way to find glassware like condensers, hot plates, and chemicals I feel stupid because I didnt look at the desc

What equipment would you recommend for various types of distillation?

Could one put a balance on top of the other and then reset the under one in order to have more flexibility in the weight range?

So, is ptfe paste used for thread sealant ok? Says it's resistant to pretty much everything, gas and liquid, and stable up to 500°F I've used this stuff a bunch at work in the automotive industry and at home sealing threaded plumbing connections. It doesn't harden up, but holy don't get it on your clothes it'll never come out. Nothing I've found thins it out much.

Where did you get vials that big? I cant find them on carolina...

I would love to do stuff like this :(

cool.!

nice

+NurdRage Do you have any good websites to get glass viles and bottles? Thank you.

YAY! :D

For how mutch would you sell those broken magnet magnetic stirring hot plates?

i found replacement 1 beaker-cup(i don't care about poison)2 hotplate stirrer-gas stove3scale - mini seesaw with weigh up to 0.01g~1kg4vial - small bottle

Have you a good way of separating a seized ground glass joint? It's big and expensive so a hammer isn't a good idea.

@christianvn1

6 жыл бұрын

Seymour Pro Thermal shock can sometimes separate ground glass joints. Try immersing the stuck joint in an ice bath after brief heating with i.e. heatgun or keep it in the freezer for a few minutes, then gently tap and twist it.

+NurdRage Interesting starting equipment(s) you chose for the first part of this series! :) I have a question though, for the weighing scale, would you recommend having a higher maximum load or higher precision in general if you had to choose 1?? E.g. 3kg Max Load ±0.1g, OR 500g Max Load ±0.01g?

@davidzed3274

8 жыл бұрын

+Cheejyg Second one.

@tGhIeNrGmEiRte

8 жыл бұрын

+Cheejyg As an amateur chemist it's very unlikely you'll be working in quantities above 500g...

@seigeengine

8 жыл бұрын

Agreed. You can also weigh out multiple portions and add them together if you happen to need to use more than the max load of your scale.

@Cheejyg

8 жыл бұрын

+seigeengine +David Zed +tGhIeNrGmEiRte Thanks for the input guys! Yeah agreed @seigeengine, I could actually get the higher precision one and measure out separate batches and add them together if I needed more. Why didn't I think of that! XD

@seigeengine

8 жыл бұрын

Cheejyg Don't worry about it. :P

glass vials with ground joint and glass cap, please

Is that your real voice? Cool video!

from where did you get those little plastic bottles

Greetings! I guess there are some more experienced people in chemistry hanging around here. I recently got some old equipment from a friend who couldn't remember where he got it himself. From what I could figure out it contains a few used and not washed test tubes, some Cu powder, Zn pellets and diluted sulfuric acid (no idea how diluted). The equipment had been stored for quite a while and had (maybe still has) some kind of residue on the bottles and tubes. I've washed them with generous amounts of cold tap water to remove most of what was on them, yet there are a few test tubes that appear to have leftover Cu powder from a reaction. So, to the point... how should I treat this kind of equipment further? What's the best way to wash out vials with dried out residue?

@alexi3489

8 жыл бұрын

First find a test tube brush on eBay or Amazon, they're a couple of dollars and will help scrape out the residue without scratching the test tube. You aren't limited to cold water, use warm water with dish detergent from the grocery store. If that fails, you can dissolve copper with white vinegar and 3% hydrogen peroxide, both available at a pharmacy. That method also produces copper acetate which has the pretty deep blue color of ionic copper. With this method, you can pour the water down the drain, but rinse the sink well and keep it away from dishes you eat with, it's somewhat toxic. Don't be afraid of it because it's toxic, if it was really bad I wouldn't even suggest it. Don't eat it and you'll be fine.

@Meta194

8 жыл бұрын

awesome :) thanks!Alex I