Magus Tech (Technological Wizard)

Chapter 11: The Production of Anesthetics

It is true that using drugs can have some effects on the body, but using drugs may be the most convenient and quickest way. Under normal circumstances, it is impossible to maintain consciousness and let the body fall asleep, but with special drugs, such as anesthesia, it is completely possible.

There are many types of anesthetics, such as solid type, gas type, and liquid type. What Richard is trying to make now is an anesthetic that is a solid type of plant alkaloid.

Generally speaking, the preparation of this type of anesthetic is very simple, because many plants contain this component, such as Solanaceae, Leguminosae, Brassicaceae, Papaveraceae, etc. in dicotyledonous plants. It is only necessary to add plant raw materials to the instrument, and after a series of chemical reactions to remove impurities, high-purity alkaloids can be obtained.

Li Cha thought about it and started to operate.

Sophisticated instruments are constantly functioning, distillation, condensation, filtration, extraction, precipitation, dissolution, crystallization...

"Puchi puchi", a large amount of white steam emerges, "papa pata", the lid of the jar keeps beating, "tick tick", a drop of yellow liquid drips out of the horn tube, "gum tuk dah", a large amount of liquid emerges from the beaker bubble……

...

After a long while, the entire experimental process reached the final stage. As the temperature of the liquid in a beaker gradually cooled, pieces of crystals precipitated out, showing a dull yellow color, and the interior seemed to be filled with dust.

Li Cha just glanced at it and shook his head uncontrollably, knowing that this first attempt failed, and the reason was very simple - there were impurities.

There is nothing wrong with my own experimental process. The removal of various impurities has been taken into account, but the entire experiment has more than 20 links. It is subject to the current world's production equipment, and each link will produce a small error.

One error and two errors are acceptable, but ten errors and twenty errors are a bit fatal. The accumulation of quantitative changes will lead to qualitative changes, completely contaminating the crystals of the final product that should be pure, making it unusable.

Failed!

Richard shook his head again, without any annoyed expression. Because after coming into this world for fifteen years, I have already understood what kind of world this is. No matter how angry you are, it is useless. No matter how strict the craftsman is, there will always be errors in the instruments produced.

The only way to solve this problem is to choose... another way.

"Solid phyto-alkali anesthetics can't be prepared, so we can only see if gas anesthetics and liquid anesthetics can be prepared." Li Cha said to himself, and found a blank papyrus scroll from a wooden shelf on one side. , found a place to spread out on the black walnut table, sat upright, held a quill and began to write and draw, sorting out ideas.

"Swish..."

For the preparation of gas anesthetics, Li Cha has a record in mind, that is, the preparation of the famous "laughing gas", that is, nitrous oxide (N20).

This is a colorless, sweet-smelling gas whose narcotic effect was discovered in 1799 by the British chemist Humphrey Davey in the history of modern Earth. Since then, it has been widely used in the field of dentists, because it allows patients to remain conscious while losing pain, and can make oral responses according to the instructions of the dentist, which brings great convenience to the dentist.

Most importantly, this gas-based anesthetic is simple in structure and can be prepared with only one thermal decomposition reaction. To be precise, it is to heat ammonium nitrate (NH4NO3), so that ammonium nitrate is decomposed into nitrous oxide (N2O) and water (H2O) by heating, and the nitrous oxide can be collected by drainage method.

When Li Cha thought of this, he wrote the words "ammonium nitrate" in the very center of the papyrus scroll, but his brows wrinkled for a moment, thinking that there should be no such thing as ammonium nitrate in the current world.

Because ammonium nitrate is not a natural substance, but a chemical product, it was not industrialized until the end of the 19th century. If you want to use industrial law to make,

A metathesis reaction with ammonium sulfate and chile saltpeter is required.

"Swish..." Soon, on the papyrus scroll, the words "ammonium sulfate" and "Chilean saltpeter" were added next to "ammonium nitrate" in the middle.

Li Cha's eyes first fell on ammonium sulfate. Ammonium sulfate is generally obtained by crystallization, centrifugation and drying after neutralization with ammonium hydroxide and sulfuric acid. Sulfuric acid has its own, but ammonium hydroxide does not. It needs to continue to be prepared by chemical methods...

Turning his head, Richard's eyes fell on Chilean saltpeter again. The main component of Chilean saltpeter is sodium nitrate (NaNO3), which can only be synthesized with sodium metal and nitric acid on the basis of not being able to obtain the original ore. Nitric acid is easy to say, but sodium is hard to find in this world. Table salt contains sodium, but to separate it requires electrolysis, which requires electricity...

"Swish..." Richard wrote more and more on the papyrus, and when he finally stopped, he had already written a full piece. If you follow the operation written on the papyrus scroll, let alone twenty links, even forty links are less.

The main reason for this situation is that the current technological level of the world is limited. Because there is no industrialization, many raw materials that should be easily obtained cannot be obtained, and only the most basic and common substances can be used to synthesize them. It is bound to increase the workload and difficulty.

"Huh", let out a breath, and rubbed his brows. Li Cha has decided to temporarily give up the second attempt, and make a decision after seeing the situation of the third attempt.

The third attempt is to prepare a liquid anesthetic, and Li Cha is more optimistic about ether (C4H10O).

Ether can be regarded as an anesthetic that ordinary people know best. Even if you haven't seen it in reality, you will often see such a scene in various movies of all sizes: the bad guy uses a liquid-soaked handkerchief to cover the victim. The victim's mouth and nose, the victim inhaled nervously, sucked the volatile liquid into the body, and then the body fell into a coma.

In the bridge section, the liquid in the handkerchief is ether, which is a colorless and transparent liquid, which is extremely volatile and has extremely fast anesthesia efficiency.

However, it is not an easy task to prepare this ether, and the industrial preparation method requires alumina as a catalyst. And aluminum oxide, or metal aluminum, in the current world similar to the Middle Ages, its scarcity can be ten times or more than a hundred times higher than that of gold and precious stones.

Although the content of aluminum in the earth's crust is second only to oxygen and silicon, ranking third, but due to the weak oxidizing property of aluminum compounds, it is not easy to be reduced from its compounds, so metal aluminum cannot be separated out. It was not until 1854 on the modern earth that German chemist Deville used sodium instead of potassium to reduce aluminum chloride to obtain pure aluminum ingots. For a long time after that, because it was extremely difficult to obtain, aluminum was a treasure that only emperors and nobles could enjoy.

For example, the French Emperor Napoleon III used an aluminum fork at a banquet; the Thai king used an aluminum bracelet; exhibited at the Paris Exposition in 1855 with the crown jewels, labelled "Silver from Clay"; 1889 , London chemistry will give vases and cups made of aluminum alloy as a gift to Teleev...

In the current world, if you are going to make alumina from scratch and use it as a catalyst for testing, I am afraid it is more difficult than killing a dragon by an unarmed farmer, but...

"Is there no way? Are you stumped by the first so-called life reshaping..." Li Cha said to himself, tapping the table lightly.

"Pa-ta, pa-ta, pa-ta... pa!" Li Cha suddenly stopped his fingers and thought of something, his eyes sharpened, "Wait..."

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