Units of area | Obsolete units of measurement
A dessiatin or desyatina (Russian: десятина) is an archaic, rudimentary land measurement used in tsarist Russia. A dessiatin is equal to 2,400 square sazhens and is approximately equivalent to 2.702 English acres or 10,926.512 square metres (1.09 hectare). * Treasury/official desyatina казённая десяти́на, kazionnaya desyatina) = 10,925.4 m2 = 117,600 sq ft = 2.7 acres = 2,400 square sazhen * Proprietor's (владе́льческая десяти́на, vladelcheskaya desyatina) = 14,567.2 m2 = 156,800 sq ft = 3,200 square sazhen Hence 3 proprietor's desyatinas = 4 official desyatinas. (Wikipedia).
This is a reupload because the previous video was stuck in 360p for some reason. We are making some dibenzalacetone, which is a commonly used sunscreen ingredient. It is very good at absorbing UV light, so it's good at protecting us from the mean sun. The next video will be the 4th in th
From playlist Everyday chemicals
Acetaminophen/Paracetamol (Tylenol)
Acetaminophen, more commonly known by brand names such as Tylenol, is not a true NSAID, as it does not have anti-inflammatory properties. However, it is commonly discussed alongside NSAIDs as it has similar antipyretic and analgesic properties. Although its mechanism of action is not well-
From playlist Pharmacology
Dihydrogen Monoxide - Lethal Everyday Chemical
Dihydrogen Monoxide is a chemical that is available to small children without special permission. It can be lethal in small doses, and causes millions of dollars in damage to the environment and personal property each year. Be careful when dealing with this dangerous chemical.
From playlist April Fool's Day Favorites
Ethyl Chloroacetate a Deadly Precursor to Many Pharmaceuticals
In this video ethyl chloroacetate which is a precursor to many pharmaceuticals will be prepared. We will make it by doing an esterification reaction involving chloroacetic acid, ethanol, sulfuric acid and a lot of patience. Ethyl chloroacetate is a toxic liquid used to make chloroacetamide
From playlist Organic Chemistry
Making Dimethylamine: A Chemical Used In Big Pharma
In this video we are going to make a chemical called dimethylamine from DMF. Dimethylamine is often used in pharmacology but my main use for it will be making various metal complexes. Get a 7% discount on your next purchase from laboratoriumdiscounter.com with the secret code "THYLABS202
From playlist Organic Chemistry
This Stuff Is Used For Building (Construction Foam / Polyurethane) #98
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From playlist Organic Chemistry
Recrystallising Paracetamol + Unboxing glassware
I try something easy after spending this week fucking up making perchloric acid.
From playlist Para-DDNP
Aspirin (Acetylsalicylic Acid)
Now that we understand the basics regarding NSAIDs, let's dive into a few specific drugs from this class. First up, aspirin. This drug has been around for centuries, but now with a modern understanding of chemistry and biochemistry, we are able to understand its precise structure and mecha
From playlist Pharmacology
Dangers of Dihydrogen Monoxide - The Less You Know 523
To learn how you can help in the fight against Dihydrogen Monoxide check out http://www.stevespanglerscience.com/dhmo.html
From playlist April Fool's Day Favorites
Dangers of Dihydrogen Monoxide - The Less You Know 632
To learn how you can help in the fight against Dihydrogen Monoxide check out http://www.stevespanglerscience.com/dhmo.html
From playlist April Fool's Day Favorites