Ren Baqian listened to Nagu's words, and he was sure a lot.

When he heard about the poisonous salt water, he had an idea. Although toxic, all substances in the world are composed of ions and molecules, so chemical reactions are bound to occur under certain conditions.

That is, it can refine the salt in it, or eliminate the toxicity.

And that kind of black water, which also exudes the smell of rotten eggs, is likely to be a kind of black brine, which exists on the earth, and was refined and used by the ancient people with wisdom crystallization nearly two thousand years ago.

This is also the predecessor of the famous "well salt", after he learned some about the world, he deliberately inquired about all kinds of information about well salt. In fact, it is not only the seaside that can produce salt, but also the people of Sichuan, Tibet and other places use various methods to extract salt, a necessary material for life, in nature.

The methods are also various, the salt crystallization of natural brine and saline-alkali land is only the simplest, and there are many other methods to make salt without such conditions, and well salt is one of them.

Among them, there are black brine wells, yellow brine wells, stone rock wells and so on. It is mainly used to extract seawater that has accumulated in the ground after the evolution of the earth's crust. Or rather, metamorphic seawater.

Among them, the black brine well refers to this toxic black brine. This metamorphic water is usually found below 300 meters underground, but springs or pools can occasionally form due to earthquakes or other reasons.

It was precisely because of this that Fang Baqian immediately thought of this when he heard them talk about poisonous salt water.

"Do you have that brown water there? It's also salty and just as poisonous. Ren Baqian immediately asked.

The reason why I ask this is because there is a large amount of sulfate in the black brine, and there are barium ions in the yellow brine, both of which are toxic to the human body, but if they are fused together in the right proportion, the sulfate and barium in it can be turned into barium sulfate crystals, eliminating toxicity and extracting well salt.

Of course, the premise is that the black pool is indeed black brine. And there are no other toxic ingredients in it.

According to Fang Cai's few words, Ren Baqian felt that the first point was very likely, and the second point was difficult to say.

"Nope". The big man said coldly, even if he knew that Ren Baqian was working in the Beast Garden, it only made him less hostile, and it didn't mean that he would be kind to Ren Baqian. In fact, Ren Baqian has a thin body, and he looks similar to the people of Yunguo and Daxia, and he will not like such a person. This is already deep in the bone marrow.

"Yes!" Nagu suddenly remembered something, and turned her head to the big man to retort: "The one in the mountains we met together last time, the big bow was thirsty and took a sip, and he had no strength all afternoon, and an arrow shot directly into the face of the tooth beast, and you were almost pierced by the tooth beast." Isn't that water what he says he is?"

"Hmph," the big man snorted coldly and turned his head.

Nagu turned his head to look at Ren Baqian and said, "There is a gap in the mountain where the water is what you said, but it only brings a little brown and can't be drunk." ”

Ren Baqian was overjoyed when he heard her words.

I just asked by the way, but I didn't expect it to be there.

"Where is your stockade?" asked Ren Baqian.

"What for?" Nagu immediately became vigilant.

"I don't know where your village is, where can I find the black water pool and the other water you mentioned?" Ren Baqian said.

"What are you looking for this thing for? You thought it could be used as salt? I told you it was poisonous. Nagu looked at Ren Baqian suspiciously.

"Since it is poisonous, then there is an antidote. Everything in the world is mutually reinforcing. ”

"Hmph, don't believe it!" Nagu said directly.

"You have to try to find out. If I really go to find it, hire you as a guide, and take revenge with salt, how about it?"

Nagu rolled her eyes, stretched out a finger and said, "I'm a good hunter, if you want to hire me as a guide, you need at least half a catty of salt a day." ”

Ren Baqian looked at one of her outstretched fingers, thinking about what she said, very curious, what would she do if she wanted a pound of salt?

Thinking of this, Ren Baqian subconsciously stretched out two fingers: "What is this?"

Nagu was stunned for a moment, and then became furious: "Are you a fool for me?" directly showed his fist, which was bigger than the earth woman, and did not forget to bared his teeth at Ren Baqian, like an enraged cat.

Ren Baqian estimated Dayaoren's strength, and then looked at Nagu's fist, estimating that if he was hit in the chest by such a small fist, he would even vomit out his liver.

"Half a pound of salt, agreed. Ren Baqian immediately changed his words.

"Well, if you have a good hunter like me as a guide, you'll make a lot of money!" Nagu withdrew her fist, raised her little face, and raised her head proudly.

"Are you really from the Beast Garden?" Nagu asked after a moment's thought.

Ren Baqian took out a sign in his arms: "Look for yourself." ”

"I don't know, I don't understand. Nagu spread her hands.

"I told you earlier, this is the manager of the Beast Garden, can I still pretend to deceive you?" said Iron Knife.

Nagu looked at the iron knife, and then at Ren Baqian, and then said, "Believe you first." Our village is in Jiuding Mountain, you can go out of the city and go southwest for a day, there is a Luo Weng horn under the mountain, and I will hear it when it sounds. ”

"Where can I find it?" said Ren Baqian. How can you find a corner under a mountain? What is the difference between looking for a needle in a haystack?

"It's not a horn, it's Cape Loon, you don't even know Cape Loon? There's a stick standing there at the bottom of the mountain, and Cape Loon hangs on it." Nagu stared at Ren Baqian with wide eyes.

Ren Baqian saw Nagu's expression that you were an alien and didn't even know about Luo Wengjiao, and turned his head to look at the iron knife: "What is Luo Weng Jiao?"

"Loon is a beast of the mountains, a one-horned beast that is as fast as lightning. The horns on the head are plucked off and blown out for ten miles. Iron Knife said.

"Can you really spread ten miles?" Ren Baqian looked skeptical, what is the concept of ten miles? Ten miles is five kilometers, and it takes about an hour to walk.

Even in an open place in the wilderness, if you want to spread five kilometers, it will be almost 1230 decibels.

Presumably the sound of an airplane taking off, or the sound of thunder.

A beast horn can blow such a loud sound, Ren Baqian is somewhat unbelievable.

Iron knife bar clicked his mouth: "There are usually big-eared monkeys and the like in the cottage, and you can hear the sound from Luo Weng Point in the distance, and the people in the village know that there are guests coming." ”

Ren Baqian suddenly realized.

Turning her head to look at Nagu, she wanted to ask where the Naloon Horn was, but she probably couldn't tell, so she simply didn't ask.

"In that case, let's go back first, and if we go to find the black water pool, we will go to Jiuding Mountain to find you. ”

"Remember to bring salt. Nagu admonished.

"I can't forget. Well, farewell. "Let eight thousand arch hands.

After walking out for a distance, the vine gourd asked, "Ren is in charge, can the black water pool really dig out salt?"

"It's not Tao, it's refining. As for whether it can be refined into harmless, it depends on the situation. Ren Baqian said. I don't have much confidence in my heart, so I can only say half and half.

"It would be great if that were the case. The vine gourd was a little excited.

"Your Majesty's approval is required for this. Ren Baqian said unhurriedly.

"As long as there is a way for the manager, His Majesty will definitely support it. "Vine gourd said. "There will definitely be official rewards. ”

Ren Baqian grinned. That's one of the reasons he asked about it. Since you're here, you can't always be a steward in the beast garden, can you?

If it was in a world similar to the ancient Huaguo, he might have really done that. Laid back and there's nothing wrong with that.

But there are so many unknowns in this world. And without status, you certainly can't understand much.

For example, the unicorn, he has never seen it again until now, and I heard that there is a special person in charge of it in the palace.

In addition, in this powerful world, he is different from others, which makes it difficult for him to feel safe. And status obviously brings a certain sense of security.