Chapter 702

702, salicylic acid 2

"disfigurement?" Xiangqi screamed, then stepped back a few steps and covered his face.

Not only Xiangju and Xiangqi, but also Yulian and Yucui have changed greatly.

But in the end it was Gu Qianxue's loyal servant. Even though they were afraid, they tried to bear it and their legs were shaking.

"Yes, so it's up to me. You all go out." Gu Qianxue calm way.

"Princess, stay with me." It's Chu Yan.

Qian Xue shook his head, "you can't stay."

Jade lotus and jade Cui way, "princess, we are not afraid of anything, we want to stay."

Gu Qianxue saw this, thought a little, and then said, "in this way, jade lotus, jade jade jade, fragrant Ju Xiang chess, all four of you go outside the laboratory, no matter what happens, there must be someone to take care of."

Jade jade just want to refuse, jade lotus but way, "yes, princess."

Jade jade does not understand, jade lotus is to gather to jade Cui ear side, "you trust those two palace maids? If anything happens in the lab, we can save the princess in the first place

Jade Cui knows clearly, nodded, "good."

Four people retreated out, Gu Qianxue to the initial flue, "you are two feet behind me."

"No, Princess..."

The first smoke just want to refute, but be thousand snow coldly stare one eye, "if you don't listen to me, this experiment will stop."

Chu Yan had no choice but to retreat two feet.

All the people back away, Qian Xue this just put down the heart, took out the handkerchief and folded it into a triangle, covered his mouth and nose, and tied a knot in the back of his head.

At this time, all the liquid in the heating dish has disappeared, leaving only a kind of white crystal.

This white crystal is salicylic acid, which is widely used in modern times.

Salicylic acid is not only the raw material of pharmaceutical industry, but also used to prepare aspirin, sodium salicylate, salicylamide, Zhitongling, phenyl salicylate, xuefang-67, etc. In dye industry, it is used to prepare pure yellow, direct brown 3gn and acid chrome yellow. It can be used as rubber curing retarder and antiseptic. It is also widely used in cosmetics, as a preservative in cosmetics, even in food.

But even if it is widely used, its toxicity cannot be ignored.

Salicylic acid dust is irritant to respiratory tract and causes cough and chest discomfort after inhalation. It is irritant to the eyes, and long-term contact can cause eye damage. Prolonged or repeated skin contact can cause dermatitis and even burns. Gastrointestinal tract irritation, tinnitus and renal damage occurred during ingestion.

Although the laboratory of nameless residence is far beyond the standard of the same era, it may not be as good as a key high school student's laboratory in modern times, and there is no effective ventilation and anti-virus equipment.

This is also the reason why Gu Qianxue dismisses everyone and keeps himself.

Because of the successful extraction of salicylic acid crystals, chixue stopped heating and then cooled the remaining liquid with ice water, and more crystals were precipitated.

This salicylic acid can not be used directly. It needs to be further purified to become phenol. Then, it is purified and reduced to aminophenol by heating hydrochloric acid and iron powder. The final product is the prototype of modern daily medicine paracetamol.

In the case of common sense and no dose standard, Gu Qianxue did not know whether he would succeed or not. Even though he managed to get the experimental results, he did not know whether it was a drug or a poison.

But at this time, there is no retreat, no time.

Without goggles and gas mask, Gu Qianxue can only try to keep herself away from drug corrosion, but in the end, she can't care.

In a flash, a day passed.

The people in the warm pavilion are anxious like ants on the hot pot. They hope that Princess Qianxue will come back soon and finish the task successfully.

But the laboratory people, like walking on thin ice, careful.

After noon, Gu Qianxue finally finished the experiment and put the yellow and white powder in the jar, "let's go." At the beginning of the flue, it is dark.

Chu Yan quickly helped it, "Princess!"

Gu Qianxue is holding open his eyes, "the laboratory can not stay long, we speed out, and then let people ventilate the laboratory."

"Yes." Early smoke see Gu Qianxue action inconvenience, simply will its lazy waist to hold up, gallop out.

People outside the laboratory were surprised to see Chu Yan running out with Gu Qianxue in his arms.

Yulian and Yucui are most afraid, rushed to the past, "Princess!" With a cry.

Gu Qianxue struggled, "I It's OK, "and then he said quickly," go to the warm Pavilion. "

Chu Yan didn't dare to neglect him. He almost used his lightness skill and ran forward with Gu Qianxue.

Warm Pavilion.

When seeing Princess Qianxue's return, the famous doctors would like to cry out and even have an impulse to kneel down and kowtow a few times.

Fortunately, Princess Qianxue has come back. Master Lingxiao hasn't died yet. They have got their huge silver reward.

It's just It doesn't mean that he won't die now.

As far as their medical experience is concerned, Mr. Lingxiao can't see the sun of tomorrow at most."Princess, why are your eyes red and swollen?" Manager Su did not understand.

"Nothing." Gu Qianxue's eyes were slightly corroded and hot and sour. She knew that she used a lot of water to wash her eyes, but she was only a pair of eyes. Su Lingxiao was a life. She would rather lose her eyes than save Su Lingxiao.

First smoke put down Gu Qianxue, Qianxue rushed into the room holding the jar.

At the beginning of smoke, she naturally knew what happened to Gu Qianxue's eyes. Finally, she was selfish and didn't say it.

Gu Qianxue enters the room and starts dispensing.

"Chu Yan, help Mr. Su up." Snow trail.

"Yes." Early smoke immediately the whole body hot Su Lingxiao support, put behind the cushion.

Gu Qianxue will take out the simple acetaminophen, consider the dosage, and then mixed with water, for Su Lingxiao feed down.

Then, he took out penicillin powder, still mixed with water, and fed it.

"I'll keep scrubbing him." With that, Qianxue took the liquor.

But Chu Yan snatched the liquor, "princess, go and deal with your eyes. If the master wakes up and finds your eyes He'll blame himself. "

Gu Qianxue realized that he could hardly close his eyes with pain.

“…… It's OK. " Therefore, the task to the first smoke, she is in Yulian and other people's help, with water to wash eyes up.

When the hot eyes touched the cold water, Gu Qianxue felt pain into the bone marrow.

"How are you, princess?" Yucui is in a hurry.

Xiangju and Xiangqi are also worried.

But see, Gu Qianxue's eyes more red, tears flow more than.

"I'm fine. Keep flushing." Gu Qianxue opened his eyes.

Yulian shook her hands, with tears, and poured cold water for her again.

But I don't know whether Gu Qianxue brought new drugs or others. Unconsciously, the atmosphere of anonymity has changed.

Less of the previous depression of grief, for a hope and lightness.

That kind of feeling, just like the breeze after the storm, more like the dawn after the night.

All of a sudden, the first smoke in the room seemed to run out of the room, with an excited expression, "Princess! Master, he The temperature is down! "