Zhao Hu really didn't want to get formaldehyde. Later, this thing was deeply hated by people. Some businesses claimed that plywood was pollution-free and were all things to coax people. If you go to his board warehouse in the summer, you will definitely make you choke and cry!

But this kind of thing is a good preservative. If you soak a specimen, it won't rot for a long time, so the medical practitioners are familiar with this smell.

At this moment, Zhao Hu locked himself in the laboratory alone, turned on the exhaust fan to the maximum, and began to try to prepare formaldehyde.

It wasn't that he didn't want to make it. Before the big mushroom appeared, Black Sorkin was the most powerful explosive in the world, with a burst of one and a half times that of yellow medicine, and it was extremely fast.

If you want to make this thing, you must have Uloto, which is made of formaldehyde. Now the base is strictly blocked, and you have to take your time to get this thing.

Before, he had obtained some industrial alcohol by distilling firewood, but Zhao Hu had never had time to prepare it. Now, when the war began, he could only find a feasible path first with a small amount of raw materials. When the conditions were met in the future, he could start a large number of horses.

Formaldehyde is prepared by iron-molybdenum method, silver catalytic method, etc. Now that molybdenum cannot be found, it can only be solved with silver.

The alcohol blowtorch was lit, and the flames were ignited, while the small hair dryer kept swelling in. Zhao Hu was armed all over, watching the temperature while recording carefully.

Formaldehyde steam condenses and drips in a transparent snake-shaped condenser. The exhaust gas contains hydrogen, carbon monoxide, methane and other gases. Zhao Hu is careful to ignite it with a match, for fear that the quality of the fire arrester he made is not up to standard. If the flame reverses and blows up the laboratory, it will be a big fun.

After all, the laboratory device was built by itself and there was not much sealing material, so the gas still overflowed unstoppable. Even through the gas mask, tears could not help but flow down.

Zhao Hu quickly turned off the blowtorch. This thing cannot be joked. If the concentration of combustible gases in the air exceeds the standard and reaches the explosion limit, the entire laboratory may explode!

There are also examples of this kind, such as flour mills, yarn mills, etc. No one expected that even those tiny particles floating in the air could explode like gunpowder and cause huge losses!

Finally, after taking the Bomei Table, the concentration is 36, which is OK. As long as you create some more, you can conduct the next experiment.

After a series of operations such as ammonization, nitration, washing, and drying, the formaldehyde finally produced a small cup of transparent crystals.

This is the strong man in gunpowder, known as the whirlwind!

The product was released, and the quality was generally qualified, but when Zhao Hu weighed it, his face suddenly turned dark. The yield was too low. This was not counting the use of electricity bills. If he had to open a factory, he would have to pay off his pants. Who would have let so many products go into the air?

Imagine again, if the factory is opened, all the people will have to go to work crying all day long. Within a radius of more than ten miles, they will basically not be able to grow good crops. That kind of situation is terrible.

There is one thing he also feels that he cannot avoid, that is, the harm of toxic air to the human body. It is estimated that as soon as this product is launched, it will have to be replaced in less than half a year.

Sure enough, some people say that war is all about money and logistics, which shows how spiritual and financial resources this logistics and military industry is!

After being silent for a long time, Zhao Hu still locked the experimental data into the cabinet. Before obtaining qualified equipment, he was not ready to build this thing. The production conditions of the workers were originally very difficult, so they were suffering from this poisonous gas day and night. In order to create an optional strong gunpowder, it was a bit unworthy of the loss. People are the most precious wealth in the world!

He reluctantly cut off a project, but good news came from the other side. Zhang Laoshi came to report in person: "Captain Zhao, it's successful, that inconspicuous earth cannon has succeeded!"

Zhao Hu was so stern: "What is an inconspicuous earth cannon? Do you know that it is a big hammer we all worked hard to create?"

"Yes, yes, the big iron hammer is so powerful. The gray wall that is more than half a meter thick exploded from a distance. Although the hole in front is not big, the gravel behind flew far away!"

"Where is the iron plate? How deep can it be hit?" This is the question that Zhao Hu is most concerned about. If the armor-breaking power is not enough, any tank or armored vehicle can continue to rage, that is not what he hopes to see.

"The armor-breaking is not as high as you said, but it is still 12. However, the thickest place of the Japanese tank is only 20 mm, thirty mm. With this earth cannon, no, a big hammer can be smashed out in one go!"

"It's good that we can smash it open. In the future, our Eighth Route Army will no longer be afraid of the Japanese. Hurry up, go and have a look with me!"

On the way, Zhang Laoshi gave a thumbs up and said, "Captain Xiao Zhao, I finally know why you don't like inventing advanced weapons. It turns out that there is a reason for this."

Zhao Hu stopped and asked, "Oh, what's the reason?"

"Of course, it's good and cheap, it's easy to make and not expensive. As long as you post the picture below, you can produce it in every place. This is the purpose of our arsenal's development of weapons. I have figured it out in the past two days. War is not something that can be controlled by one or two elite weapons. Therefore, we have to produce in large quantities so that the soldiers can meet the Iron Tortoise and have a chance to fight back!"

The two of them came to the shooting range. Zhao Hu looked at the back of the iron plate. There were dozens of straw men tied here, and the straw men were covered with two layers of huge cowhide!

Now, a small hole was blown up in front of the iron plate, and the hole was round, just like someone scraping it with a knife.

Looking at the back, a big hole was blown up. The hole was burned like it was burned, leaving cool iron tumors. You can tell at first glance that the steel plate behind was burned by strong high temperatures!

The body of the cowhide turtle man was more or less hit by transparent holes. You must know that the raw cowhide now is as hard as an iron plate. Even if you knock it with a hammer, it will not be able to be broken!

The first test was successful, and the participants were full of confidence. They began to discuss whether the warhead should be increased and the dose of the launching medicine should be increased. This way, the bombing would be strong enough!

Unexpectedly, Zhao Hu refused and asked everyone to quickly generate electricity from their superiors, ask about the thickness of the Japanese bunkers in various places, and calculate the average value.

Everyone here doesn’t understand it very much. Isn’t it better to have the bigger artillery? Why do you become smaller?

Zhao Hu calculated with his fingers: "Gunpowder, steel, weight, cost, do you think that such a high artillery tower can collapse with this shell? All we want is to blow the enemy inside, not to destroy the enemy's weapons. Also, even if one or two weights are reduced during marching, the soldiers will save a lot of effort. Of course, after reducing the weight, the range will increase, which will increase the power of the weapon more!"

When several technicians heard this, they realized that all factors should be considered when making weapons are used, and they cannot work behind closed doors.

Finally, Zhao Hu asked everyone to solve the shooting angle of the rockets, because the Japanese artillery towers are all high. If the shooting angle is large and the shells cannot be detonated, it will be a waste and may cause unnecessary sacrifices!
Chapter completed!