When Zhang Nan heard that Yuan Tiangang and Li Chunfeng were asking him about chemical equations, he immediately planned to turn around and walk out the door.

Although Zhang Nan is a science student, chemistry is definitely the worst subject he has learned, even worse than his poor English. At least Zhang Nan knows a letter in English, and Zhang Nan also knows the simple words, but chemistry is different.

Although the chemical equations are still spliced ​​in English letters, Zhang Nan knows them, but the equations do not know Zhang Nan.

As a man who passed the zero-egg test in the chemistry exam, Zhang Nan was so angry that he heard about chemistry.

"Hey, Qingquan, why are you running away?!" Yuan Tiangang saw that Zhang Nan was about to run away, and immediately grabbed Zhang Nan and prevented Zhang Nan from leaving.

After being pulled, Zhang Nan said with a wry smile: "Master, you'd better let me go. I'm really not good at this thing. I can get you any ingredients you want. You must not take me to study this thing with you."

"Is it so scary?" Yuan Tiangang asked with a strange look when he looked at Zhang Nan's appearance.

When Zhang Nan nodded sincerely when he heard Yuan Tiangang ask.

"Whether, but most of the raw materials here are used almost the same. You just came here today, so let's help me buy some and get me more sets of equipment. My little Taoist boys all use a set of equipment, which is very inconvenient." Yuan Tiangang saw that Zhang Nan was indeed reluctant, so he said.

"No problem, as long as you don't pull me to ask questions, there's no problem with anything." Zhang Nan patted his chest and promised.

After the negotiation was made, Zhang Nan was relieved to wander around Yuan Tiangang and Li Chunfeng's laboratory.

Looking at the bottles and jars in the laboratory, and reagents of different colors, Zhang Nan was also quite moved. These two old Taoists can be said to be using their own strength to drive the development of Tang chemistry.

"What is this thing?" Zhang Nan picked up a small jar filled with yellow gas on the shelf and swayed.

"Hey, don't sway, that thing is poisonous!" Yuan Tiangang immediately stopped him when he saw Zhang Nan touching his test subject.

When he heard it was poisonous, Zhang Nan immediately put down the jar.

"Now you can create toxic gases?" Zhang Nan asked with a strange look on his face.

After hearing this, Yuan Tiangang nodded seriously and then said, "That's right, the old Taoist made these things strictly according to the process in the book, so the old Taoist also knew what the things produced were. The bottle you were holding was chlorine. If you smash it here, then the three of us would have to explain it here." Yuan Tiangang spread his hands and said.

"Chlorine?" Zhang Nan also knew what this thing was when he heard Yuan Tiangang's words.

A simple chemical experiment in a middle school, using concentrated hydrochloric acid and manganese dioxide to produce chlorine. Chlorine is toxic. After being inhaled into the body, the mild symptoms are pharyngitis, bronchitis, etc.

However, if inhaled in large quantities, it will cause pulmonary edema, making it difficult to breathe, reduce the oxygen content in the blood, and extremely high concentrations of chlorine can even suffocate people instantly.

"At first, the old Taoist didn't believe that this thing had such great power, so he pulled a few pigs over and tried it. Anyway, the pigs were dead." Yuan Tiangang said.

"What about the dead pig? You won't eat it anymore, right?" Zhang Nan said with suspicious eyes, looking at Yuan Tiangang and Li Chunfeng.

After hearing this, Li Chunfeng waved his hand and said, "How is that possible? All the dead pigs were buried by us."

"Buried? You can't be buried in that bamboo forest." Zhang Nan suddenly remembered that when he came, he saw that the lush bamboo forest was now only barely left.

"Yes, how did you know?" Yuan Tiangang said strangely.

"How do I know? You all know that thing is poisonous, so why are you still burying it into the ground? By the way, did you create toxic substances and bury it into the ground?" Zhang Nan said.

"Sometimes it will also pour into the river." Li Chunfeng immediately added that Yuan Tiangang glared at him with a glance.

"Can you two have some environmental awareness?" Zhang Nan said helplessly.

"Environmental protection? What is that?" the two asked in confusion.

"It's environmental protection. How can you deal with chemical waste like this? The highly toxic substances are buried or discharged after being processed." Zhang Nan was also quite helpless.

But no matter how helpless he was, he could not really hold these two people accountable. They did not know what serious consequences would be caused by the destruction of the environment, and it was because Zhang Nan did not explain the importance of this matter to the two in advance.

"How should I deal with this thing?" Yuan Tiangang asked.

"You should know what you made yourself, Master, what you should know," said Zhang Nan.

“That’s natural.”

"Since you know, then use other things to continue reacting with waste materials you don't use, minimize the toxicity, and then discharge it into the river after it reaches the lowest level." Zhang Nan said.

"Hey? This is a good way, why didn't I think of it?" Yuan Tiangang looked like he suddenly realized.

"By the way, why are you putting so many toxic gases in your laboratory?" Zhang Nan asked strangely as he looked at the three rows of gas cylinders lined up on the shelf.

"I was wondering if this thing is poisonous, can it be used to kill the enemy? With this thing, it is simply a powerful weapon to kill people." Yuan Tiangang said.

After hearing this, Zhang Nan rolled his eyes in his heart, and then said silently in his heart: "Old Yuan, your thoughts are really ahead of time. You have even made chemical weapons."

However, Zhang Nan would never put chemical weapons on the battlefield. After all, this thing is too inhumane. Although some chemical weapons will not kill, the damage caused is permanent and cannot be restored, so Zhang Nan would not use chemical weapons to fight.

"Don't worry, you should stop this idea quickly. This thing is too dangerous and very cruel. Let's study chemistry well, thinking about how to benefit the people, and not thinking about killing the enemy." Zhang Nan said quickly.

After hearing this, Yuan Tiangang said, "I think so too. I am afraid that Qingquan you want, so I leave so much. Leaving so much is to remind you that this thing is too cruel. Even if you ask me, I won't give it."

"Well, Chunfeng, after Qingquan left, you will get rid of all these things. Do you know?" Yuan Tiangang continued.
Chapter completed!