But because they're actually kind of sticky in the same way that cotton fibers are rough on the surface and, therefore, kind of stick to each other. These benzene rings down the back of a Kevlar polymer, they tend to stick a little stronger. You can go one step further, which is to actually glue the metaphorical fibers to each other.
This is a epidemiological study coming out of Northeastern University just published last year about 1,000 under age drinkers 13 to 19 years old. Kekulé came up with the benzene ring theory in a dream of snakes eating each other's tails in a fiery kind of circle.
To improve this pickiness further, Jones also tested chemicals similar to 2,4-D. He found that adding another chlorine to the benzene ring, transforming it to 2,4,5-T, left grasses even more unscathed. He was onto something huge.
We're moving on. So, chemist, German chemist, 1800s. Everybody's trying to figure out the shape of benzene at the time. Nobody can do it.
These chlorine atoms are very electronegative, so they want to steal electrons from nearby atoms. Luckily for them, the six carbons in the benzene ring are all sharing their electrons in these fuzzy donut-shaped clouds around the ring. That's what this circle in the diagram is meant to represent.
This is a epidemiological study coming out of Northeastern University just published last year about 1,000 under age drinkers 13 to 19 years old. And there have been dreams, the benzene ring theory.
Jones checked the chemical he sprayed them with, and surprisingly, it was a growth hormone called 2,4-D. It's an acid made up of a ring of six carbons and hydrogens called a benzene ring, with an acid tail. There are also two chlorine atoms in the two and four positions of the ring, which is why it's called 2,4-D.
Nobody can do it. He has a dream of a snake eating its own tail, and suddenly realizes that benzene is a ring. This literally creates structural organic chemistry, which creates the tar and dye industries, it creates the pharmaceutical industries.
It will go up, and we will die, but what the hell. The point is, even mother's milk at this point has Benzene , toilet cleaner, window washer, lithium, which in my case, my kid gets a little free lithium, it wouldn't be the worst thing in the world.
How do these ingredients do nothing in his own tests, but at the same time cause these painful skin disorders inside 2,4,5-T factories? Well, to make 2,4,5-T, you start with tetrachlorobenzene, a benzene ring with four chlorine atoms attached to it. These chlorine atoms are very electronegative, so they want to steal electrons from nearby atoms.
That's what this circle in the diagram is meant to represent. The chlorine atoms pull on this electron cloud, bringing it closer to themselves, and as a result, the carbons in the benzene ring become slightly positively charged and the chlorine's slightly negatively charged.
and the chlorine's slightly negatively charged. Now, if you heat up tetrachlorobenzene with sodium hydroxide, one of the negative hydroxide ions will want to bind to one of the slightly positively charged carbons in the benzene ring. And to do that, it forces out the chlorine atom, taking its place.
The environmental damage from this is two-fold. First, the open-fire cooking produces a long list of noxious chemicals, like benzene , and methane, and toluene. But the black carbon and particulate matter is especially impactful on climate change.