Відео

Great video! At 4:25 on the top left corner there's a mistake on the text box, it should say "30 ml of a 10% solution of sulfur acid was made..." Instead of "30% solution of sulfur acid was made...".

In how much time was the reaction completed?

Which country are you from

Where to buy these chemicals and apparatus from at low cost?

Is there a complete video?

Wow, I thank you very much for this video! 😀

M-M-M-MAKE METHYL LIKE THIS!

What is the reason behind keeping the test tube slant ?

Beautiful... ❤️

Wow.. KBr nd KBrO3 using one reaction.. amazing .. ❤

Hello sir iam chemestry lecturer give me ur moble no

Sir give me WhatsApp num plyz ❤️

Well explained

Thank you so much

🎉 Good and Excited video, knowledgeable about chemistry. Thanks

So I can use the cloroform in the same way?

Is it possible to replace sodium with zinc in the same reaction to obtain butane from ethyl chloride?

You are from which university???

Prussian blue is pigment 27

This Chocolate brown dye is food dye

What is universal indicator solution?

Fantastic!

This is such a clever way to separate these products! I really enjoyed this video!

Hi sir can i talking with you ?plz

Fantastic video! But the magnetic stirrers are usually made of ptfe teflon coated around it. It wouldn't ruin the reaction!

Does it have to change colors?

What temperature do you reflux it at?

The nitration of Napthalene does work with 50% nitirc acid too. 100g naphtalene dissolved 300ml AcOH and added 100ml of HNO3 let it stand for 5 days and reaction is compled its an addapted methode mention in Urbanski.

You list 10 ml orthoposphoric acid but only use 5 mls in this video. What is the other 5 mls used for?

Thank you bro

What do you call this method?

Red Black White colours of phorspros

Nice explanation sir Thank you so much ❤

Is the amount of sulphuric acid optimised?

Which Mol sieves did you use

Is orthophosphoric acid the same as phosphoric acid

That's really cool video, thank you for posting it! Although I'm corious about the yield of this reaction that you've done here. I'm also interested if you've managed to make some spectral data to check how pure is the product. Does it have some contamination or maybe it was perfectly distilled without any other unwanted ingredients? Edit: I've rewatched the video and I've noticed that you mentioned about that you received 4 g of valeric acid. My bad, I'm sorry. I'll calculate the yield by myself now. Thank you! 🙂

makes me think if [Cu(NH3)2]Cl could be used to chekc for acetylene leaks

Thank you sir ❤❤ help kar ne ke liye Thank you so much sir

Not bad! I just did this synthesis this week. That being said, I have a few pointers: 1. You wrote NaOH when you meant to write MeOH in your reaction scheme. You should fix that. 2. Your calculation of yield doesn't make sense. You need 2 equivalents of nitrobenzene to generate 1 equivalent of azobenzene. Therefore your max theoretical yield would be 4.59 g. That means your actual % yield was 67.5% I would fix this and reupload the video or at the very least, put in captions that fix these errors.

haven't you got a smaller condenser? this one looks kind of unsuitable for small distillations tbh

How about NAPQI? It can be synthesized from paracetamol by oxidation with silver oxide in chloroform.

Azoles have an even wider variety of uses pharmaceutically than those described here. CIBA back in the 1950s developed highly potent synthetic opiods where were benzimidazole derivatives. There are even antipsychotics with novel effects which contain an azole functional group, such as aripiprazole.

Thank you so much, Sir.

these are the experiments that should actually be done in chemistry classes, not the forgettable and seemingly useless, hey let's make something white blue, or red to green,.... first explain what silica is, how anyone being able to find a way to purify it on an industrial scale even slightly cheaper than is the case now, or in a way that impure silica sources can be utilises as efficiently as high SiO2 sources (like quarts quarries) that person would be set for life or even potentially world famous.

Now make valeronitrile

@vibzz lab if you heat the pure SiO2 with pure carbon will we end up with pure Si and is there a way to produce silicon wafers of it? If yes, could you show that process too.

If it smells like rotten fish there are maybe side products in it

Odor?

Apparently it can also be synthesied from alloxan using hydroxylamine hydrochloride.