Hand rubbing nuclear fusion live in the wilderness

Chapter 151 Manufacture of Sulfuric Acid

(ps: Please ask for a monthly ticket for the fourth watch, big brothers, there is still 300 short, please draw a prize.)
After more than two days of tossing, Won finally distilled all the alcohol in the cassava fermented product, and purified it to 95.5% with the help of glass instruments and thermometers.

This is already the limit that the distillation method can produce.

Because at this level of purity, it is no longer possible to separate the water and alcohol in alcohol by controlling the temperature difference.

More than 100 catties of cassava finally yielded 13.8 kilograms of 95-degree alcohol.

The output is about one-third less than the production of absolute ethanol from modern industrial cassava.

These alcohols with a purity of 95% are stored in a large transparent glass bottle with a wooden stopper to prevent evaporation.

The audience in the live broadcast room urged Han Yuan to try what the taste of this alcohol tasted like.

Seeing these bullet screens, Han Yuan's eyes rolled, a convincing smile appeared on his face, and he said, "Don't try it, I've tried this stuff before, it tastes mellow, sweet and soft, light and refreshing."

"I personally strongly recommend everyone to give it a try, but don't drink too much, after all, the degree is high and it is easy to get drunk. In addition, underage should not drink alcohol."

Hearing this, the audience in the live broadcast room complained one after another.

[Damn it, you are actually so bad, anchor?You actually want to fool us in turn? 】

【How are you?I really like. 】

【real? 】

【fake! 】

【real or fake? 】

[I'll try it, if you don't come back, everyone go to the hospital to see me. 】

[Big brother upstairs, walk well all the way, walk slowly and don't see you off. 】

【? ? ? ? ? 】

Ignoring the audience who always liked to encourage him to eat bugs, make bombs and drink 95-degree industrial alcohol, Han Yuan walked towards the lime-burning kiln next to the wooden house.

"The alcohol I'm producing now has a purity of 95.5%, but it still contains some water."

"Alcohol containing water cannot meet the requirements in some chemical aspects, and needs to be further purified to anhydrous."

"Under standard atmospheric pressure, the azeotropic point of alcohol and water will be the same when the proportion of alcohol reaches 95.5%."

"In this way, the ordinary temperature-controlled distillation method is useless."

"I need other substances to dehydrate the alcohol."

"Exactly, I have one in my hand."

As he spoke, he pried open the kiln mouth where the lime was fired, and took out a few pieces of burnt off-white quicklime from the middle of the kiln.

Blow off the dust on it, and peel off the outer layer of coat that may have been damp, revealing the white quicklime inside.

With these pieces of quicklime, Han Yuan returned to the workshop, and while grinding the lime into hair powder, he said:

"The scientific name for quicklime is calcium oxide."

"When preparing anhydrous alcohol, quicklime is added to 95% pure alcohol, and then heated."

"The water in the alcohol can react with calcium oxide to form non-volatile calcium hydroxide to remove the moisture inside."

"After the reaction, the alcohol is distilled again to obtain anhydrous alcohol with a purity of 99.5%."

"However, this still does not reach pure alcohol. If you want to remove a small amount of residual water, you can add metal magnesium to make 100% ethanol."

Won added the ground quicklime to the alcohol distilled before, then stirred it, started heating, and glanced at the barrage by the way.

【tasty? 】

【? ? ? ? ? 】

[If you drink it, you will probably die, right? 】

[Has the foodie expanded to such an extent now?Want to try the taste of absolute alcohol?Are you not afraid of death? 】

[Drinking absolute ethanol will not kill you, at most it will be uncomfortable for a while. 】

[It's better to drink aqua regia. 】

[Besides drinking, used for disinfection, and used as fuel, is there any use for alcohol? 】

Looking at the barrage that was crooked to the limit, Han Yuan was also speechless for a while.

Anhydrous alcohol is anhydrous ethanol, this stuff is clearly not for drinking, okay?
Shaking his head, Won explained while heating the glass container to distill absolute alcohol: "In addition to being used for disinfection after dilution or as fuel, absolute alcohol is a very important chemical raw material."

"It can be used to make various materials such as acetaldehyde, ethylenediene, ethylamine, ethyl acetate, acetic acid, ethyl chloride, etc."

"In turn, many intermediates of medicines, dyes, paints, spices, synthetic rubber, detergents, pesticides and other products are derived."

"With ethanol, I will collect some chalcocite ore in two days and come back to produce sulfuric acid."

"Combined with the lime, salt, and resin I have on hand, I have strong acids, strong bases, alcohols, lipids, and inorganic salts in chemical basic materials."

"Through these three, I can carry out a variety of compound reactions to deploy a large number of compounds."

"For example, I wanted to make plastics before, but the lack of plasticizers can be compounded through these things."

"There are other things, such as ether and acetylene, which can be burned to achieve ultra-high temperatures, and these can be produced through ethanol."

"There are many uses, as long as you have knowledge in your mind, you can make it."

[Hanging yuppie! 】

[I don't understand, but I feel so awesome. 】

[The chemical industry is a big hole, anchor, the kind that you can't get out if you step in, but it's also quite fun. 】

【What is this person's brain made of?What a feeling of knowing everything. 】

[From survival in the wilderness to modern engineering, there is a huge gap between them. 】

[With sulfuric acid and saltpeter, nitric acid can be produced, and with nitric acid, there can be nitroglycerin!After that, everyone understands it.hey-hey. 】

【Good guy, this is getting worse. 】

[Even the plastic is coming out, is there anything else that can stop the anchor? 】

[Daily question, why hasn't this live broadcast room been blocked yet? 】

In the glass container, the doped quicklime begins to react with the water in the alcohol under constant heating.

Some sparse small air bubbles keep coming out of the liquid.

Compared with the previous direct use of river water, the reaction is much weaker.

When the bubbles stopped coming, Won poured the liquid in the glass container into the still and started to distill again.

This time, what dripped out again was absolute ethanol with a purity of 99.5%.

The water content inside is already very low, which is enough for general chemical experiments and reactions.

As for the remaining 0.05% moisture, it needs to use metal magnesium for further treatment, but he doesn't have it on hand.

After distilling the absolute ethanol in his hand and keeping it safe, Han Yuan made a cart out of bearings and wood.

Then, with tools such as axes and hoes, they cut down trees and dug up soil and stones. It took a few days to build a dirt road between the chalcocite mine and the wooden house that can be used by carts.

In addition, he also hit the idea on the North American bison, and planned to tame some North American bison to carry chalcocite ore.

There is no way, although chalcocite ore contains sulfur, but it needs to be extracted by distillation and other methods to make sulfuric acid, and the amount of chalcocite ore is particularly large.

The kind that is calculated by tons.

(End of this chapter)