ask sword 2

Chapter 251 Master and Disciple
Everything is here.

Li Ang looked around at the raw materials and equipment in the room, took a deep breath, and raised his palm to release his thoughts.

Potassium antimony tartrate, also known as tartaric acid, is a potent emetic and antiparasitic drug.

It can disturb the belt of schistosomiasis worms, causing them to lose the muscle adsorption function, fall off from the blood vessel wall, be carried by the blood flow to the liver, and be eliminated by the human immune system in the liver.

Moreover, antimony potassium tartrate can also affect the energy supply of worms, affect the reproductive system of worms, and has a strong killing effect on schistosomes and filarials.

"First, it's antimony"

Antimony is called Lianxi in Yu State, and it was used to be mixed with copper to mint currency in the past.

This batch of antimony shipped from Tanzhou is of high purity.

After calcination, antimony white, that is, antimony trioxide, can be obtained.

"And then, tartar."

The tartar precipitated in wine contains about 50.00% to 80.00% potassium hydrogen tartrate. After hydrochloric acid decomposition and recrystallization, potassium hydrogen tartrate with higher purity is obtained.

"A mix of both."

Put potassium hydrogen tartrate and antimony trioxide in a weight ratio of [-]:[-] into a round bottom flask, add distilled water, install an air condenser,
Using talismans and thoughts, simulate a constant temperature magnetic stirrer, heat in a water bath, and control the temperature close to boiling.

After the antimony trioxide was basically dissolved, filter while hot,
The obtained filtrate was concentrated by evaporation, cooled and crystallized, and left standing.

Subsequently, wash with a small amount of high-concentration ethanol, and dry at a temperature of eighty degrees,
Finally, white crystals were obtained.

"."

Li Ang looked at the extremely pure antimony potassium tartrate, but there was not much joy in his eyes.

He silently picked up the medicine, diluted it with 5.00% glucose injection, walked out of the secret room, went to the shed outside the hospital, and injected a small amount of antimony potassium tartrate to a sick cow infected with schistosomiasis.

Then take out the silk, penetrate into the body of the sick cow, and monitor the physical condition of the sick cow.

He told Qiu Feng and others that he wanted to develop medicines, and he didn't have to disturb him if there was nothing particularly important, so the courtyard was extremely quiet, except for the hard panting of the cattle.

After an unknown amount of time, Nian Si finally had feedback.

In the body of the sick cow, one after another schistosome convulsed and shrank, fell off the inner wall of the blood vessel, was washed by the blood to the liver, and was surrounded and killed by inflammatory tissue in the liver.

Countless pharmacists and prescriptions were helpless against schistosomes, who had no resistance to antimony potassium tartrate, and were wiped out one by one by the autumn wind like fallen leaves.

Li Ang still didn't have much joy on his face.

He got up and walked across the courtyard, opened the courtyard door, and looked up at the overcast sky.

succeeded,
However, the price is also too great.

----

Taihu Lake was called Zhenze in ancient times, also known as Lize.

It is already the beginning of spring, the lake is rippling, and the willow trees on the bank are sprouting, swaying with the wind,
The spring breeze is warm, the grass is green, and the air is filled with the fragrance of grass and trees.

"Everyone must wear socks and gloves before entering the water! Do you hear me?"

"Be careful, schistosomiasis penetrates everywhere, even in the dew on the grass blades, even if you feel hot, you can't take off your gloves!"

"Ditches, every old ditch must be covered, and new ditches must be dug! Don't think that digging other people's ditches has nothing to do with you. After the spring plowing starts, the ditch water system will be connected. If the snails in one place are not completely wiped out, a large area of ​​cultivated land around them will be destroyed. To suffer!"

On the banks of the river, countless mobilized people wielded shovels and hoes, struggling to dig ditches.

If the snails and schistosomiasis cannot be killed on a large scale before spring plowing, all states, counties, towns and towns along the Taihu Lake will suffer from a new round of water poisoning disease.

Gululu——

A carriage passed on the road by the lake,
In the carriage, an old man named Situ Zhi looked out the window through the curtain and let out a chuckle.

"Hehe. This aura is really fighting against heaven and earth. Man will conquer heaven."

His eyes swept over the people on the bank who were sweating profusely, and a strange smile appeared on his face, "Yu Shi, do you know why I want to spread the disease in Yu Country?"

"Ok?"

The white-haired boy sitting on the opposite side of the carriage thought that this was another test by the teacher, so he thought about his words and slowly replied, "In order to defeat the State of Yu?"

"No, defeating Yu State is Zhaoming's goal, not ours."

Situ Zhi said, "Think again."

"for."

The boy named Yu Shi followed the teacher's gaze and looked at the people of Yu country outside the window, and hesitantly asked, "Observe the reaction of the people under the epidemic?"

"Very close."

Situ Zhi smiled and said, "We spread the disease not to kill as many people as possible, but to observe people's strength.

You are an abandoned baby of Western origin that I picked up,

In our hometown, the Far West, there used to be a great empire named Romulus.

The territory and the number of people of Romulus are no less than that of Yu Country, and the scholars of Romulus, like the academy, advocate the way of reason.

500 years ago, an unprecedented plague broke out in Romulus,
The sick had severe diarrhea, vomiting, sore throat, fever, thirst, ulcers on hands and feet, pus on the skin, and rashes on the body that peeled off like fish scales.

From the royal aristocrats down to the slaves and civilians, nearly ten million people died in the plague, the entire empire suffered a huge blow, the order was crumbling, and the fire of civilization was almost extinguished. "

Situ Zhi said leisurely: "However, just when everyone thought that the Romulus Empire would perish and perish, the disease subsided.

The living people who stand up from the pile of dead bodies will no longer be infected with diseases, and the population will rebound accordingly.
They cleaned up the corners of the cities and built better public buildings, farming and construction within the empire was more advanced than in the past, roads ran through everywhere, and every city was open to commerce.

People reclaimed wasteland, built manors, felled thorny forests and replaced them with farmland.

The civilization of the empire is also more prosperous than in the past,
The death of the slave master freed a large number of slaves,
Debts from the past are wiped out, business is re-established and thriving,
The college lowered the threshold and admitted more students,

The nobles are afraid of the power in the dark, and dare not act recklessly.The depravity, luxury and lust of the upper class of the society is abolished,
Even the seemingly endless war had to be suspended due to lack of manpower.

A terrible plague brought rebirth to the empire. "

Situ Zhi said with emotion: "In the east, everything is the same.

The newly-born kingdom, because it cleared away the evils of the past, was able to re-establish order and quickly possess a strong national power.

For example, in the Han Empire, from when Han Gaozu was besieged by the Xiongnu at Baideng Mountain to when Emperor Wu of the Han attacked the Huns and forced them to move far away to Mobei, it took only a few decades.

After the fall of the Western Han Dynasty and Emperor Guangwu once again ruled the world, the population of the empire increased again, and the national power recovered rapidly.

Until the end of the Eastern Han Dynasty, the empire was unable to suppress the Yellow Turban Uprising due to decay, and decided to drink poison to quench thirst, and ordered the counties to recruit soldiers on their own, which eventually led to the demise of the Eastern Han Dynasty. "

He stroked his beard and said with a smile: "The destruction of a great empire is often not due to the invasion of foreign enemies.

But before that, the Empire itself fell into a long period of ossification.

The aristocrats are high above, the rich and wealthy wantonly annexed the land, the fields of the rich are connected with rice fields, and the poor have no place to stand.

Scholars who aspire to change the status quo are forced to get involved in the officialdom and lose their motivation in the intrigue.
The interests of all parties wrap around every corner of the empire like a spider web. Everyone knows that the status quo is wrong, but no one has the ability to change it.

The only lesson humans can learn from history is that humans never learn from history.

Unlike some people in Zhaoming, I don't hate Yu Guo,

On the contrary, I have a good impression of this huge empire that is somewhat similar to Romulus. If it weren't for the limitation of my status, I would really like to go to the academy and discuss it with the doctor there.

And I did not spread this plague to destroy them,

More like... a friendly reminder, a wake-up call. "

(End of this chapter)