A month later, the smelting area.

"How's that? Is there a stone you're looking for?"

The fox chief asked Lin Luo with an expectant expression.

At this time, Lin Luo was standing in front of a fire, trying to bake pieces of white crystalline ore in a scorching flame.

Hearing the Fox Chief's inquiry, after roasting the last piece of ore, Lin Luo shook his head and said, "No, these are not the stones I am looking for. ”

Hearing this, the anticipation on the fox chieftain's face suddenly turned into loss.

But soon, he picked himself up again and said, "It's okay, I'll send someone to continue the search." ”

"No need. ”

Lin Luo shook his head again.

The preparation of gunpowder requires a total of three raw materials, namely sulfur, charcoal, and saltpeter.

Among them, sulfur has been found in the Banyan tribe.

Charcoal is even simpler, and they began to burn charcoal for heating as early as in Zhushan.

Nowadays, in the smelting area, a large amount of burned charcoal is piled up like a hill.

But what Lin Luo didn't expect was that the final problem was stuck on the saltpeter.

In fact, when he first found sulfur and planned to prepare gunpowder, Lin Luohe did not worry about the problem of saltpeter.

Because, at that time, he immediately thought of the salt mine cave.

You must know that almost all ores have symbiotic ores, and saltpeter is one of the symbiotic ores of salt stone.

Therefore, according to Lin Luo's previous plan, it was planned for the He tribe to mine saltpeter for them in addition to salt ore.

And this idea was originally carried out very smoothly, and it didn't take long for the He tribe to send the mined saltpeter to Menggu.

However, when Lin Luo put the saltpeter on the fire for inspection, he found that the burning flame was yellow, not purple.

This made Lin Luo instantly think that the saltpeter in the salt mine cave was sodium saltpeter, not the potassium saltpeter he needed.

Sodium saltpeter is highly toxic and has strong irritation to the skin and mucous membranes, and can cause abdominal pain, vomiting, shock, and even death if ingested.

The salt in the salt cave is highly toxic, which is directly related to sodium saltpeter.

Obviously, such a result made Lin Luo feel very disappointed.

In the end, there was no choice but to let the fox chief be responsible for finding natural saltpeter mines around the Menggu Valley.

But apparently, the results were not ideal either.

For a full month, the soldiers sent out to search all the nearby hills, but still did not find the saltpeter mine.

Therefore, Lin Luo could only reluctantly choose to give up the idea of looking for a natural saltpeter mine for the time being.

"Lin Luo, is the gunpowder you said really that powerful?"

At this time, the bamboo chief, who was standing on the side, asked.

The last time he was in the bamboo forest, Lin Luo said that sulfur was not used to refine gold, but to make gunpowder.

Chief Bamboo was curious about this, but also slightly skeptical.

Because in his eyes, in addition to refining gold, stone can only be polished into stone tools as weapons.

However, those sulfur stones, which Lin Luo called them, were not hard at all, and he could break them into pieces with his bare hands.

Compared to some hard stones, it is far from perfect.

"Chief, when the gunpowder is made and you see its power with your own eyes, you will understand!"

Gunpowder is different from bronze, Lin Luo can't explain it clearly in words, and now he can only be forced to sell Guanzi.

Hearing this, Chief Bamboo did not continue to ask.

Instead, he asked Lin Luo: "Then I haven't found the saltpeter you said yet, what should I do?"

"Now we can only use the soil method to make nitrate. ”

Lin Luo replied a little helplessly.

In fact, Lin Luo has always known a method of making nitrate.

It's just that due to the low yield and the fact that the process is not so good, it has not been implemented.

Now, seeing that there is no way to find a natural saltpeter mine in a short period of time, he can only choose to use the soil method helplessly.

"Chief, I need some manpower. ”

Immediately, Lin Luo turned his head and said to Chief Bamboo.

"No problem, you can say as many people as you want. ”

"A few people will do. ”

......

Tribal Confederation Public Toilet Area,

That's right, on the edge of the accommodation area, close to the planting area, Lin Luo had specially planned a public toilet area before.

The reason why this public toilet area was planned was not only to prevent the feces and urine from flowing in the accommodation area, but also to collect farm manure.

Today, the growing area is full of fruit trees and crops.

Since there is no fertilizer in this world, Lin Luo simply chose the most natural farm fertilizer.

In this way, the land becomes more fertile, which in turn increases the yield of crops.

At this moment, Lin Luo stood in front of a whole row of squatting pits made of stones, and first checked the situation in the pits.

Then he pointed to the pit and said to the people behind him who were holding clay pots, "Go and scrape off all the white powder from those stones."

Also, the dirt in the corners was all scraped into the clay pot. ”

“......”

Hearing Lin Luo's words, several clansmen looked at the stenching pit in front of them, all with confused expressions.

"But these clay pots are used for food!"

Soon, one of the clansmen said to Lin Luo.

"From today onwards, these clay pots will no longer contain food!"

Lin Luo waved his hand directly.

Seeing this, the crowd did not say anything more.

They all took out the thin bamboo slices they had prepared in advance, and acted quickly according to Lin Luo's orders.

"Whew!" "Whew!"......

Soon, the sound of bamboo scraping became loud.

......

It took nearly an hour for the clansmen to "sweep" the inside and outside of the public toilet before they were able to collect all the clay pots.

Looking at the smelly soil in the clay pot, Lin Luo waved his hand with satisfaction and said, "Go, follow me!"

Then, he walked ahead and led the way towards the area where the white salt was refined.

"Lin Luo, what are these?"

Looking at the clay pots on the ground filled with dirt, Chief Bamboo couldn't help but frown and asked.

From the clay pots, he smelled a distinctly stinking smell.

"These are the materials used to make nitrate. ”

Lin Luo replied to Chief Bamboo, and then asked, "Chief, have I asked you to prepare everything?"

"It's all set. ”

Hearing this, Chief Bamboo nodded.

"Alright, get someone over and get these pots. ”

Lin Luo said immediately with anticipation.

Within the Tribal Alliance, the area where white salt is refined is forbidden, and only a few craftsmen involved in refining it can enter.

Therefore, after those clansmen left the clay pot at the door, Lin Luo let them leave.

"Good. ”

Although the bamboo chief couldn't understand what the stinking soil had to do with saltpeter, he still nodded in response.

......