"Boss, I understand the principle of this kind of mortar you said. You are right, this kind of mortar that fires sub-caliber shells, if the propellant is not strong enough, it will not be able to perform this The real power of a small cannon." Brother Li said with certainty.

As an alchemist who is proficient in chemical experiments, after he came to the Gaoshu tribe, he was very interested in the high-power gunpowder mentioned by the stone bear, and he was really willing to do various experiments. So since the cement was burned out, he began to experiment with various new types of gunpowder on his own.

But this new type of gunpowder does not mean that experiments can be done. If there is no guidance, it is really not easy to find a way to make more powerful gunpowder.

It is as if the masters who discovered nitroglycerin and smokeless gunpowder in the original historical time and space only discovered the preparation method of these violent drugs by accident. It is not so much that these violent drugs invented by their accumulation of knowledge, but also Rather, it was the goddess of luck who nodded their foreheads with a finger, which made them lucky to get the method of making these draught medicines.

If nothing happens, in another six years, Europeans will produce a very powerful drug for menacing, but this kind of drug is more powerful than the power of ladders in the eyes of Europeans. It is only suitable for dyeing agent.

This kind of fierce medicine that is about to appear is called "picric acid".

In 1771, Englishman Wolfe treated phenol with concentrated sulfuric acid and concentrated nitric acid and obtained a yellow solid-trinitrophenol, which was used as a yellow dye. No one thought that this was an extremely powerful and potent drug, so it was used as a dye by the whole world for a hundred years without revealing the "true face of Lushan".

From 1849, picric acid was used as a yellow dye for dyeing silk. It was the first artificial dye to be used. It has been used safely in the dyeing workshop for 30 years.

Until 1871, one day that year, a barrel of picric acid in a dye shop in the suburbs of Paris could not be opened due to the rust of the iron barrel. The guy found a hammer and smashed it with force. With a loud noise, the flames blazed into the sky, and the yellow dye exploded violently, and the dye shop suddenly turned into rubble, with countless casualties.

This is undoubtedly a tragedy, but it is a great thing for the French military. After repeated trials, picric acid began to be widely used in the manufacture of yellow drugs in the military.

After testing, the blast speed and blasting energy of picric acid are far higher than that of black powder. Among all the potent drugs at the time, the power of picric acid was second only to nitroglycerin, and the thing was stable and the preparation method was simple.

Just how powerful is the bitter taste?

For a simple comparison, the power of black powder is only one-tenth that of nitrazine, and the power of nitrazine is only one-tenth of picric acid. That is to say, one pound of picric acid is equivalent to ten pounds of ammonium nitrate. It is equivalent to one hundred catties of black powder!

Even if it is compared with the picric acid with modern mammoth medicine, the picric acid is quite strong.

Ladder is the most famous and most famous medicine in modern medicine, but its power is still far worse than that of picric acid. The strength of the ladder is between 8-13, and the strength of picric acid is as high as 116!

Although this is only a comparison of "magnitude", the power of violent powder is not comparable to that of black powder, even if there is no one hundred times the power, there are still eight or ninety times the power. In fact, the power of C4 used by special forces in the 21st century is not much more powerful than picric acid!

However, in the eighteenth century, the only explosives used by military powers in this era are black powder. If it has a bitter taste, it means that it immediately has an explosive charge that is more than a hundred times more powerful than other large countries!

In the original historical time and space, Japan itself used picric acid to make the famous "Shimase gunpowder", and as a result, the old Maozi was beaten up in the Russo-Japanese War.

Thanks to his previous work, Shi Xiong knew how to prepare picric acid. So he planned to get the bitter taste out first.

However, the transportation and storage of picric acid is a difficult problem. Because picric acid is an acidic substance with strong corrosiveness, it can corrode metals and generate high-sensitivity, highly explosive picric acid salts. This is also a problem that the British and French military have not solved after obtaining picric acid.

But this problem was finally solved by Japan.

Well, it can't be said to be a complete solution. It can only be said that the Japanese did better than the British and French. That's why they successfully used the bitter sour in the Russo-Japanese War and World War I.

In fact, the Japanese method to solve this problem is very simple. They painted the inside of the shell and attached a thick layer of paraffin to isolate the direct contact between picric acid and the shell of the shell. This is a simple, ingenious and inexpensive method. Solved the big problem.

Shi Xiong knew all these things, so he decided to make his own bitter taste sour.

Compared with the ladder-pressing ladder, a detonator is needed to detonate. The picric acid, which is more powerful, simpler to prepare, lower cost, and can solve the problem of ammunition storage in a short period of time, is undoubtedly better than the ladder-press ladder.

"Yeah~lightnovelpub.net~ Bill, it is really not enough to fire mortar shells with black powder, so we have to develop a new and more powerful propellant." Shixiong smiled to brother Li Said.

Once picric acid is developed, the power of mortar shells will naturally have sufficient protection. If smokeless gunpowder is made out again, the problem of short firing range of mortar shells can be completely solved.

Compared with picric acid, the preparation method of smokeless gunpowder is slightly more complicated. In the original historical time and space, there are two smokeless gunpowders, one is the B gunpowder invented by Frenchman Vieler in 1884, and the other is the double-base smokeless gunpowder that Nobel applied for in 1887.

Vieler's B gunpowder is the alcoholization reaction of nitrocellulose, stabilizer and ethanol, and then compressed and cut into strips to dry, forming B gunpowder.

Nobel’s double-base smokeless gunpowder is a mixture of equal amounts of nitroglycerin and collodion gum, plus 10% camphor as a stabilizer, and then dried to form a more stable double-base smokeless gunpowder. Pyrotechnics.

But whether it is B gunpowder or double-base smokeless gunpowder, it is inseparable from nitrocellulose, a cellulose nitrate formed by cotton fiber that is in contact with a mixture of concentrated nitric acid and concentrated sulfuric acid.

This kind of nitrocellulose is a very important raw material for the preparation of various violent drugs, but the preparation method of this thing is very simple.

Picric acid, B gunpowder or double-base smokeless gunpowder are two important gunpowders that Shixiong plans to develop next. Once these two things are developed, plus the ray/acid/mercury developed, then the mortar can be made.

Although it is still impossible to make all-metal bullets with fixed gunpowder, with mortars, it can still be rampant in this era!

PS: Bow and thank you for the reward of "Mourning Wu Huaxia" 200.