Chapter 183 Contract Alchemy Workshop [Subscription Request]

"Flammable mixed oil."

"After the bottle is broken, it will explode and produce a flame with strong adhesion."

Unlike the stunned Hutos Oil Engine, the iron maniac Wormish standing behind was obviously calmer.

He even summarized the effect of the Molotov cocktail.

Chen Xuan turned his head and looked at him. Wormish grinned, pulling the scar on his face, revealing an ugly smile.

I have to say that this guy summarized it very well.

Since gasoline and alcohol-based fuel are both volatile, after sufficient mixing, the relatively sealed bottle will be filled with flammable gas.

But after the Molotov cocktail is ignited and thrown and broken, the flammable gas in a compressed environment will explode, thereby quickly igniting the oil scattered around the landing point.

This is also the reason why he did not fill the entire bottle with oil.

The brilliant flame burned on the metal target for several minutes before gradually dissipating.

The impact range of the flame is about a radius of five or six meters.

Hutos Oil Machine couldn't wait to take several alchemists in the alchemy workshop to the shooting range.

In fact, this guy himself is a multi-disciplinary scholar in alchemy.

He has dabbled in major branches such as mechanical engineering, material alchemy and pharmacy, and has obtained professional titles certified by the kingdom.

After studying for a long time, it returned to Chen Xuan with a thoughtful look on its face.

The alchemists gathered together and discussed in a low voice.

"The oil you prepared is very special."

"Its combustion characteristics are very stable, different from most of the flammable gases known in Naroa."

"Mr. Chen... Xuan... Xuan, can you tell me the origin of these oils?"

Hutos Oil Machine quickly came to a conclusion.

It said Chen Xuan's name a little awkwardly, and was very curious about the origin of the oil used to make the Molotov cocktail.

In fact, there are many kinds of oils that can be ignited on the Naroa continent.

But there are very few with explosive properties.

Usually alchemists like to add magic materials to achieve the desired effect.

For example, the main materials of the "flame pot" that the Molotov cocktail targets are the powder of fire elemental gems and the fat of fire monsters. As long as the magic element is input to activate it, it can ignite the flames.

In terms of combustion effect alone, it is better than the Molotov cocktail, but the cost is very high.

Although the powder of elemental gems is a scrap, the quantity is not large.

The subcutaneous fat of a fire raccoon can only make about eight or nine flame pots.

Not to mention the risk of overturning during production. If you are not careful, the two exploding fire materials will ignite in advance and cause an accident.

On the other hand, the Molotov cocktail brought by Chen Xuan is not only simple to mix, but also has low risks during the production process.

So Hutos Oil Machine is not interested in the process, but more interested in the mixed oil itself.

There are many flammable oils and fats in both Naroa and Blue Star.

The most typical example is vegetable oil.

Cooking oil, which is a must-have in every household on Blue Star, is also a flammable oil liquid.

However, the ignition point of most cooking oils must reach more than 200 degrees Celsius before they can ignite an open flame.

When it is made into the fuel of oil lamp, it is easier to carry out local combustion.

Solid cooking oil, such as animal fat, also has similar characteristics. After entering the melting and boiling point, it will produce pyrolysis and combustion effects.

Therefore, flammable oil liquid is not a rare thing.

At this time, it involves a concept that often appears in hazardous chemicals:

Flash point, ignition point, and autoignition point.

As we all know, liquids like gasoline will evaporate, and the higher the temperature, the faster the evaporation rate.

When the volatile octane and olefin cycloalkane vapors are mixed with air, they can flash sparks when they come into contact with the fire source, but they flash out and cannot continue to burn. This phenomenon is called flash fire.

Under the conditions of indoor temperature of 28℃ and relative humidity of 85%, the volatility of gasoline is 55% after 20 minutes.

At room temperature, 1 kg of gasoline evaporates to produce about 400 liters of gasoline vapor.

When gasoline vapor is evenly mixed with air, the combustion speed is extremely fast and the combustion is complete.

The second is the concept of ignition point.

Whether it is a solid, liquid or gaseous combustible material that coexists with air, when it reaches a certain temperature, it will burn when it comes into contact with a fire source, and it will continue to burn after the fire source is removed.

The lowest temperature of the combustible material at this time is called the flash point, also known as the ignition point.

A key difference between the flash point and the flash point is whether it can continue to burn after the spark is removed.

According to the definition of flash point and ignition point, for flammable liquids, the ignition point is higher than the flash point.

The last is the auto-ignition point.

At the auto-ignition temperature, the combustible material comes into contact with air and can burn without the action of an open flame.

The auto-ignition point of gasoline is 427℃ under normal atmospheric pressure, but in a compressed air environment, its auto-ignition point can be greatly reduced.

It is the difference in the three major characteristics of flash point, ignition point and auto-ignition point that is the biggest difference between gasoline and alcohol-based fuels and the common oils on the Naroa continent!

Hutos Oil Engine also saw through this point and shifted his attention to the oil itself.

Facing its questioning, Chen Xuan smiled and said nothing.

"Mr. Hutos, this is a real secret."

"And I am not here to discuss material alchemy with you."

"I just want the alchemy shop to help with the processing."

"The Molotov cocktails produced will be used to resist the magic disaster."

Hearing his words, Hutos smiled awkwardly, realizing that he was rude.

The origin of any mysterious material will not be easily exposed.

For example, the Naroa continent is extremely vast, and there are some specialty materials in various places, which are regarded as patents and will never be leaked.

In its view, these flammable oils that can make Molotov cocktails must also have some kind of confidential process and raw material sites.

It is absolutely unexpected that these materials are common fuels in another world.

Seeing the change in Hutos's expression, Chen Xuan can roughly guess what this guy is thinking.

When it was about to speak, Chen Xuan suddenly changed the subject.

"However, this matter is not completely negotiable."

"Oh? You can put forward any conditions."

"Whether it is Krona, alchemical materials or potions, as long as you open your mouth, everything can be negotiated!"

Hutos Oil Machine rubbed his hands and said with expectation.

Talking about business is one of its best areas.

As long as the other party is willing, there is hope of negotiating.

But Chen Xuan smiled.

"My conditions are very simple,"

"As long as you and all the alchemists in the alchemy shop who have the third-level mechanical engineering, material alchemy and pharmacy qualifications sign a limited-time slave contract with me, then I will tell you the origin of all these oils."

Chen Xuan used greed as a line and oil as bait, sitting by the river, fishing these goblin alchemists.

This condition made Hutos stunned.

"Slave...slave contract..."

The sensitive and suspicious nature made it think that this matter was not simple.

"It is limited in time!"

Chen Xuan took the initiative to add a sentence.

At this time, Hutos Oil Machine looked at the backbones of the alchemy shop behind him, bowed slightly, and replied in a hesitant tone: "Please wait a moment, I need to discuss with my guys!"

After that, they ran together and whispered to each other and discussed.

When Chen Xuan finished talking about the time-limited contract, the embarrassment on Jason Iron Furnace's face flashed away. Iron Maniac Wormish turned around and looked at the chariot not far away, with a focused and serious expression, and seemed not to care about Chen Xuan's request to the goblins.

A few minutes later, Hutos Oil Engine returned to Chen Xuan.

"As you said, it is not impossible to conclude a time-limited slave contract."

"But the terms of the contract must be drafted and initiated by us."

"And the duration of the contract can only be one Naroya Day at most!"

Hutos' tone was very firm, and his eyeballs kept turning. The speed of eye movement was proportional to the speed of thinking. In the time it took to say a few words, this guy didn't know how many thoughts he had turned.

"Okay."

Chen Xuan agreed very readily.

The time limit was originally a cover.

Besides, with the magic disaster in Magtan City, no one was sure whether they could live to the next Naroya Day.

Bargaining at this juncture not only failed to conceal his true intentions, but also made them more obvious, like taking off pants to fart.

So Chen Xuan agreed very readily.

Soon, under Hutos's urging, a goblin engineer named Quentin Huapi came out reluctantly and sent Chen Xuan a contract invitation.

Hutos was quite cautious and knew to let the guys test the waters first to see if there was anything fishy about the contract.

Little did he know that Chen Xuan's contract modification would only take effect after [crossing the border], so it would not be so easy to expose.

The contract appeared in the minds of both parties, and his consciousness quickly interpreted all the terms.

No loopholes were found that could force the termination of the contractual relationship.

It was just that the other party set extremely strict restrictions on both parties in the slave contract.

As the master, Chen Xuan not only could not force orders, but the goblins also had the right to refuse to answer questions.

In addition, there were a series of supplementary explanations.

This made the so-called slave contract exist in name only, and it was essentially closer to a cooperation contract.

But it doesn't matter, the golden finger will take action, and the goblins' clever behavior can't change their fate of being recruited by Chen Xuan.

After choosing to conclude and leaving the soul imprint, the master-servant contract relationship between the two parties is established.

Seeing that the contract process was smooth, Hutos Oil Engine finally let down his guard.

It took other alchemists to accept Chen Xuan's contract one after another.

In this way, Magtan City Alchemy Workshop was taken under his command.

Not busy with [cross-border], Chen Xuan introduced Hutos about the origin of gasoline and alcohol-based fuels, as well as the introduction of fossil fuels such as petroleum according to the agreement.

Because the conversation involved confidentiality, Chen Xuan and the goblins went to the office to talk.

When he finished speaking, these alchemists with high-level titles fell silent.

However, this silence did not last long.

A goblin alchemist sitting next to him suddenly raised his hand, and Chen Xuan nodded, indicating that it could speak.

"According to the description, does this oil look like the magma recorded in the Naroa Biography?"

"It is rumored that there are several magma lakes in the wild basin where the trolls live."

"The magma is very viscous and cannot be ignited directly, but there are often flammable gases floating on the lake surface."

"One of the magma lakes was ignited on a large scale more than 200 Naroa years, and the flames have been burning until now."

Its words quickly attracted responses from other goblins.

Even Chen Xuan narrowed his eyes.

From the description of this goblin alchemist, the magma really looks a bit like oil.

And it appeared in a basin, which is consistent with the topography of oil-rich areas.

In Blue Star, most of the areas rich in oil resources are sedimentary terrains, such as plains and basins.

In the desert basins of the Middle East, even cracks in the ground can overflow with oil.

In addition to the variable of being full of magic, the Naroa continent has many commonalities with Blue Star in terms of environmental characteristics, so it is not too strange that oil resources are born.

"Okay, let's not talk about the topic of oil for now."

"The most important thing at the moment is to outsource the Molotov cocktail."

"I have just finished talking about the manufacturing process and fuel ratio."

"I need to get at least 3,500 Molotov cocktails within seven water clock hours."

"As long as I can survive the magic disaster, I will find a way to get some crude oil and its derivatives for you to study."

Chen Xuan raised his hand and tapped the table lightly.

All the goblins stood up and saluted.

Although the contract has not been modified yet, the master-servant relationship between the two parties has been determined.

Then the goblins followed Chen Xuan out of the office.

Arriving at the venue, he took out gasoline and alcohol-based fuel from the storage compartment, as well as thousands of beer bottles.

As for the cloth strips, let the goblins find a way to raise them.

The agreed commission is 3 crowns per Molotov cocktail, and the total price is 10,500 crowns.

Slaves are slaves, and business is business.

The Alchemy Workshop will summon all the alchemy apprentices in the city and assign at least half of the workers to pack Molotov cocktails.

Chen Xuan finalized the matter, and his heart was immediately relieved.

When he finished talking to the goblins, it was already half an hour later.

Unexpectedly, Iron Maniac Wormish did not leave.

Instead, Johnson Iron Furnace returned to the association with the blacksmith apprentices and the magic transport vehicle.

When Chen Xuan walked out, Wormish took the initiative to walk towards him.

"Let's make a deal."

"Give me one of these tanks."

"Whatever you ask for."

"I know you have a brand new material and mechanical engineering technology."

"By the way, can I touch it?"

Iron Maniac Wo Mishi said calmly, his hoarse voice made him seem even more profound.

Moreover, this guy has been watching for so long, but he hasn't touched it himself. He has to ask the owner's consent before touching it. I don't know whether to say he is dull or to say he is following the rules.

Chen Xuan nodded and motioned him to go ahead.

I saw Iron Maniac Wo Mishi stretched out his huge alienated palm and gently pressed it against the side of the tank.

Red light bloomed from his palm, covering the entire tank in an instant.

At the same time, a glimmer of enlightenment flashed in his eyes.

The blood-red light then converged, and his expression became inexplicably complicated!

...