Global Wasteland: Unlimited Upgrades for Vaults

Subsequently, the Frenchman "Eugene Turpin" took the lead in developing the "picric acid pressing method" for shells, and also gave it the name "Melinite", that is, "melinite".

This term is unfamiliar to many people, but everyone is familiar with the 1897-style 75mm field gun, which is Li Yunlong's "Italian gun"

Now there is saltpeter to prepare nitric acid, and sulfur and saltpeter can react to produce sulfuric acid, and then some oil to extract the toluene inside...

"If it is really possible, I am afraid that my bomb technology tree will directly skip black powder and nitrated gun cotton, and come directly to the era of yellow explosives!"

Thinking about the configuration methods of explosives that his father had been talking about before he came, Su Mo instantly became excited.

After all, black powder is just a propellant, and when it is made into a gunpowder bag, it can only complete the two processes of detonation-combustion.

Picric acid is different. Once the shock wave with chemical reaction is detonated, an explosive reaction occurs at the initiation point to generate a large amount of high-temperature, high-pressure and high-speed airflow, which excites the shock wave in the explosive.

The shock wave strongly compresses the adjacent explosive thin layer to cause the explosive reaction to generate a large amount of gas and heat, completing the detonation-boom-wave process.

Even if enough picric acid can be accumulated, it can be made into explosive packs and thrown into the kobold castle.

Under the detonation wave, it only takes one back and forth to let the Kobold know what justice is from heaven!

"Try to fix the oil well tomorrow!"

In front of the workbench, Su Mo stood up and sat down again and again, unable to calm down the turmoil in his heart.

After pouring 500g of purified saltpeter powder into a wooden container and putting it in the second bedroom, Su Mo returned to the workbench again.

"I know the formula for purifying dynamite. I also learned the method of preparing nitric acid and sulfuric acid in high school. These are not problems. The key lies in the process of extracting toluene from petroleum and the process of mixing and reacting to form picric acid..."

"Back when Nobel made explosives and killed his younger brother, although this picric acid is not as difficult as nitroglycerin, it may explode when it encounters high temperature, friction, and impact, and it can react with iron. Picric acid metal salts are formed like mercury acid to form mercury salts, causing accidental explosion hazards”

"Perhaps I can get the method of preparing picric acid through the transaction information... After upgrading the system, I can get a better and safer method!"

Having figured this out, Su Mo didn't hesitate, and directly called out the game panel to find the contact person.

After scanning all the friend lists, Su Mo finally focused on the line marked with Shen Ke.

Focus and open the chat panel.

[Su Mo: Hello Shen Ke, do you have time to chat? I want to make a deal! 】

After the news passed, Su Mo continued to sit in front of the workbench, waiting quietly.

Sure enough, less than five seconds later, the video of Shen Ke on the other side popped up.

After connecting to the video, there was a sizzling sound on the screen, and Shen Ke's slightly tired pretty face appeared on the screen.

"Wow, Mr. Sumo, your shelter is developing so fast, it doesn't look like wasteland at all, but rather like a brick house in my hometown!"

bright lights.

Clean and tidy partitions.

In the distance of the lens, there are sparks and Oreos playing on the ground.

looking at myself.

The dilapidated wooden house is still lit with homemade thick smoke torches, and it is pitch black through the window.

From time to time, a headwind blows, blowing black smoke into the room, causing people to cough.

"Where is it? It's also my luck that I made some achievements, which are nothing compared to you." With a wave of his hand, Su Mo quickly ended the courtesy time and got straight to the point.

"I want to make a deal with you. You know the yellow dynamite, it's picric acid. I think there should be someone from you who knows the formula and preparation method?"

"I know, I know, this is not a problem. If it weren't for the lack of raw materials, we would have made them all. Do you have raw materials near you?" Shen Ke said without thinking too much.

After all, this thing is not too difficult. Compared with TNT, Hexokine or Cloud Bomb, yellow explosives are basically not difficult as long as there are raw materials.

But what this thing lacks is the raw material!

The reason why ancient China failed to develop explosives was that it was difficult to extract oil.

Not all places have oil. As a top-level strategic material, it is obvious that there is no exploration near Shen Ke's shelter.

"Ahem, this raw material, I opened it from a treasure chest, and I just want to make some explosives for self-defense because I have some storage now."

Su Mo didn't change his expression, he opened his eyes and talked nonsense.

But there is no need to explain too much, everyone is just trading, so stop.

Shen Ke on the opposite side nodded: "Then what about the trade item this time? Is it phantom energy water?"

"No, this time I will exchange information with you, about alien creatures!" Su Mo smiled confidently and waved his hand.

"This... I'm afraid I can't make the decision, I need to ask the higher-ups for instructions." Shen Ke looked embarrassed, and hung up the phone after getting Su Mo's consent.

After a while, when the phone was connected again, two middle-aged men with majestic faces sat opposite, and four recorders sat behind the men, looking nervously at the camera.

"Hello, Sumo, we have approved your deal. You just need to tell us the information about the alien creature, whether we know it or not, and I will give you the complete formula and preparation method in due course."

Nodding, Su Mo was not afraid to run to the other side, and straightforwardly told the information about the warrior kobold, the warlock kobold, and the white-robed kobold that he hadn't figured out yet.

During this process, Su Mo concealed some details of the battle, but only told about the warlock kobold's spellcasting method, the warrior kobold's combat power, and the information that the kobold brought with it when it arrived.

The four recorders were writing hard, and Sumo could observe from the video the shock on their faces as more and more information flowed out.

Even the serious middle-aged man sitting on the left asked several details repeatedly during the process.

"Okay, Sumo, thank you for your contribution to mankind. Your information is very useful. The information will gradually spread out in China Refuge. Do you have any objections?"

"No, no..." After finishing speaking, several people hurriedly stood up, and Shen Ke sat back down again.

While the other side was preparing for the bitter taste, the two of them also started chatting with each other.

"By the way, Shen Ke, what is the identity of the person sitting on the right just now? It feels a bit weird." After changing the topic a few times, Su Mo changed the subject and asked about the confusion just now.

The man on the left was vigorous and resolute, and his sitting posture was correct. The man on the right was there at first, but sat loosely within a few minutes.

"The biggest doubt is that when I mentioned the kobold information just now, although he looked shocked, in fact, his micro-expression seemed to be a look that he already knew..."

"Oh? You mean President Ying? Ying Tianlong is the president of the Civil Self-Help Association. Their family is relatively large. When they came here, more than 20 people were put together. They are the current main force of our "Tundra" shelter. !” Shen Ke said with a naive smile, without concealing it.

"Tundra?"

"Well! This is the name of our refuge. Of course, if we can get the first place in disaster resistance next time, we will still use the name Huaxia. This title can only be used by the number one refuge. Other times we will use Tundra To call..."

"That's it..." After getting the desired news, Su Mo immediately changed the topic and chatted about some aspects of life.

After a while, Shen Ke's transaction request popped up.