702, salicylic acid 2
"Disfigurement?" Xiangqi screamed, and took a few steps back as she spoke, covering her face.
Not only Xiangju and Xiangqi, but also Yulian and Yucui's expressions changed drastically.
But after all, they were Gu Qianxue's loyal servants. Even though they were afraid, they endured it, their legs trembling.
"Yes, so I will do it myself, and you all go out." Gu Qianxue said calmly.
"Princess, servants stay here." It was Chu Yan who spoke.
Qian Xue shook her head, "You can't stay either."
Yulian and Yucui said, "Princess, we are not afraid of anything, we want to stay."
Seeing this, Gu Qianxue thought for a while, and then said, "Well, Yulian Yucui, Xiangju Xiangqi, all four of you go outside the laboratory, no matter what happens, there must be someone to take care of you."
Yu Cui was about to refuse, but Yu Lian said, "Yes, princess."
Yu Cui was puzzled, but Yu Lian leaned closer to Yu Cui's ear, "Do you trust those two maids? If something happens in the laboratory, we can save the princess as soon as possible."
Yu Cui understood, and nodded, "Okay."
The four retreated, Gu Qianxue said to Chu Yan, "You are two feet behind me."
"No, Princess..."
Just as Chu Yan was about to refute, Qianxue gave her a cold look, "If you don't listen to me, this experiment will stop."
Chu Yan had no choice but to retreat two feet.
Everyone backed away, and Qianxue felt relieved, took out a handkerchief and folded it into a triangle, covering her mouth and nose, and tied a knot behind her head.
At this time, all the liquid in the heating dish has disappeared, leaving only a white crystal.
This white crystal is salicylic acid, which is widely used in modern times.
Salicylic acid is not only a raw material in the pharmaceutical industry, but also used in the preparation of aspirin, sodium salicylate, salicylamide, Zhitongling, phenyl salicylate, schistosomiasis-67 and other drugs. In the dye industry, it is used to prepare mordant pure yellow, direct brown 3GN, and acid chrome yellow. Used as rubber vulcanization retarder and disinfection preservative. It is also widely used in cosmetics, as a preservative in cosmetics, and even as a preservative in food.
But despite its versatility, its toxicity cannot be ignored.
Salicylic acid dust is an irritant to the respiratory tract, causing coughing and chest discomfort after inhalation. Irritant to eyes, prolonged exposure may cause eye damage. Prolonged or repeated skin contact can cause dermatitis and even burns. Gastrointestinal irritation, tinnitus and kidney damage may occur after ingestion.
Although Wumingju's laboratory is far beyond the standards of the times, if it is placed in modern times, it may not be as good as a student laboratory in a key high school, and there is no effective ventilation and anti-virus equipment.
This is also the reason why Gu Qianxue sent everyone away, leaving only herself.
Since the salicylic acid crystals were successfully extracted, Qianxue stopped heating, and then used ice water to cool down the last little bit of liquid, and then more crystals precipitated.
This kind of salicylic acid cannot be used directly, and it needs to be further purified to become phenol, and then purified and reduced to aminophenol by heating hydrochloric acid and iron powder. The final product is the prototype of the modern daily drug-paracetamol.
With only common sense and no dose standard, Gu Qianxue didn't know if she would succeed. Even if she managed to get the experimental results, she didn't know whether it was medicine or poison.
But at this time, there is no retreat, no time.
Without goggles and a gas mask, Gu Qianxue could only try to keep herself away from the corrosion of drugs, but in the end, she couldn't care less.
In a flash, a day passes.
The people in the warm pavilion were as anxious as ants on a hot pot, and they all hoped that Princess Qianxue would return quickly so that they could complete the task smoothly.
But the people in the laboratory are walking on thin ice, cautiously.
After noon, Gu Qianxue finally finished the experiment, and put the yellow-white powder she got into a jar, "Let's go." Chu Yan said, but his eyes went dark.
Chu Yan hurriedly supported him, "Princess!"
Gu Qianxue forcefully opened her eyes, "We can't stay in the lab for long, let's go out quickly, and then let someone ventilate the lab."
"Yes." Seeing that Gu Qianxue was inconvenient to move, Chu Yan simply picked her up and ran out.
People outside the laboratory were shocked when they saw Chuyan running out with Gu Qianxue in his arms.
Yulian and Yucui were the most frightened, and rushed over, "Princess!" with a sob.
Gu Qianxue struggled, "I'm... fine," and then hurriedly said, "Go to the Nuan Pavilion quickly."
Chu Yan didn't dare to be negligent, almost using lightness kung fu, and rushed forward with Gu Qianxue in his arms.
Snapper.
When seeing Princess Qianxue returned, the famous doctors wanted to cry, and even had the urge to kneel down and kowtow to her a few times.
Fortunately, fortunately, Princess Qianxue is back, and Young Master Ling Xiao is not dead yet, so they have received their huge reward.
It's just... Just because Mr. Ling Xiao is not dead now, doesn't mean he won't die.
As far as their medical practice experience is concerned, Mr. Ling Xiao will not see the sun of tomorrow at most.
"Princess, why are your eyes red and swollen?" Shopkeeper Su asked in confusion.
"It's nothing." Gu Qianxue's eyes were slightly corroded and sore. She knew that she should wash with plenty of water at this time, but she only had a pair of eyes, and Su Lingxiao had her life. She would rather lose her eyes to save Su Lingxiao.
Chuyan put down Gu Qianxue, and Qianxue rushed into the room holding the jar.
Chu Yan hesitated to speak, she naturally knew what happened to Gu Qianxue's eyes, and in the end, out of selfishness, she didn't say anything.
Gu Qianxue entered the room and began to dispense medicine.
"Chuyan, help Mr. Su up." Qian Xue said.
"Yes." Chu Yan immediately supported Su Lingxiao who was hot all over, and put a cushion behind her.
Gu Qianxue took out the simple acetaminophen, considered the dosage, then mixed it with water, and fed it to Su Lingxiao.
Immediately afterwards, he took out the penicillin powder, mixed it with water, and fed it.
"I'll continue to wipe his body." Saying that, Qian Xue fetched spirits.
But Chu Yan snatched the spirits from him, "Princess, you go and deal with your eyes, if the master wakes up and finds your eyes...he will blame himself."
Only then did Gu Qianxue realize that her eyes were so painful that she could hardly close them.
"...that's fine." So, she handed over the task to Chuyan, and with the help of Yulian and others, she rinsed her eyes with clean water.
When the hot eyes touched the cold water, Gu Qianxue felt the pain go to the bone.
"Princess, how are you doing?" Yu Cui was anxious.
Xiangju and Xiangqi are also in a hurry.
However, Gu Qianxue's eyes were even redder and tears were streaming down her face.
"I'm fine, continue to rinse." Gu Qianxue forcefully opened her eyes.
Yulian shook her hands and poured cold water on her again with tears in her eyes.
But she didn't know whether it was Gu Qianxue who brought the new medicine or something else, unconsciously, the atmosphere of Wuming Center changed.
Instead of the previous grief and depression, it was replaced by a kind of hope and lightness.
That feeling is like the breeze after the storm, more like the dawn after the night.
Suddenly, Chu Yan in the room ran out like crazy, with an excited expression, "Princess! Master... the temperature has dropped!"
703, salicylic acid 3