After thinking about it, Fang Tian turned into an action writer.
The task, of course, is to come up with some ways to purify these sample salts.
This thing is actually not difficult. As long as someone guides you, even those elementary school students in the previous life could do it.
As a third-rate gourmet and a first-rate chemistry student... Well, this can't be called "home". I can only say that he is a first-rate chemistry learner. Fang Tian is barely competent at this thing.
At least, his level is higher than that of an elementary school student, well, let’s just call him a middle school student.
Middle school student Fang Tian carefully looked at the five samples in front of him.
For experts, you don't even need to look at the appearance of the sample. You only need to look at the geographical conditions around the salt lake to make a basic judgment on the composition of the salt produced. Just like in terms of spiritual practice, Fang Tian only needs to look at the geographical conditions around the salt lake.
Just by looking at him, he can make a basic judgment on the cultivators below him.
And this basic judgment is almost the same.
But now, in this experiment, Fang Tian can only use various methods honestly.
Seeing with the eyes, tasting with the tongue, and judging based on relevant knowledge from past lives, these three together are almost enough. After all, there are only a few possible ingredients for natural mineral salts.
Fang Tian first moved his eyes to one of the salt blocks.
The salt lake to which this salt block belongs is the closest to Hongshi Town, and naturally, the salt used daily up and down Hongshi Town is the salt of this salt lake.
The Yanyan Town that controls this salt lake, um. It has such a straightforward name. The reason why it has not developed into a small town like Black Wind City, Xiaoye City, or Sanhe City is simply because the salt water in this salt lake is very weak and does not produce much salt.
The salt produced is also of the worst quality!
But looking at this sample, Fang Tian sighed.
He knows that the salt from this salt lake only needs to be filtered through the simplest filtration to obtain almost the purest NaCl.
In other words, this salt lake, which the natives consider to be the worst, is actually probably the best.
Of course, further comparison is required.
But Fang Tian was almost confident.
Then came the second sample. Fang Tian looked at it first and then tasted it. Almost as soon as he tasted it, Fang Tian couldn't help but sigh again. At the same time, Xi Yan's words echoed in his ears: "Your Highness, this salt lake in Donghu Town and the salt water
The situation of the town's salt lake is similar. Although its salt production is not low, the salt it produces is not salty."
After hearing this, Fang Tian had a judgment in his mind at that time, and now that he has taken a practical look at it, he is sure.
In previous lives, on the earth, the element content in the earth's crust was as follows: oxygen, silicon, aluminum, iron, calcium, sodium, potassium, and magnesium.
After all, the environment is different in this life, and Fang Tian does not dare to rashly conclude that the element content of this earth's crust is the same as that of the earth in previous lives. However, the general similarity is still certain.
Well, "generally similar".
No matter from the actual situation of land, animals and plants, or from the theoretical birth situation of the universe - there is no reason for things made from the same template to be too different. No matter how vast the universe is, it will not be luxurious enough to build a small solar system.
The first two can be ignored directly, and the third can also be largely ignored. Here, what needs to be considered is the last three, namely sodium, potassium, and magnesium.
Among salts, what is similar to NaCl but not very salty?
There is only one answer, and that is KCl.
Potassium (K) has similar effects on the human body as sodium (Na). There is no saying which one is more important. Anyway, both are indispensable.
Bananas are a food rich in potassium. In previous lives, many people ate bananas to supplement potassium, and many people with high blood pressure loved low-sodium salt (in addition to normal NaCl, there was also about 1/3 to 1/4 KCl).
This is a low-sodium salt lake, which does not even require artificial mixing. It is a natural "nutrient salt" and "health salt".
In the previous life, there was a high probability that this was another salt lake that could be classified as high-quality. However, in the current world, it is obvious that this salt lake is also despised. Just like in the previous life, people in southern Yunnan only used truffles at first.
It's like feeding pigs.
The value of things varies from time to time, from place to place, and from person to person. It is possible that something was cheap at that time and expensive at this time, that place was expensive but this place is cheap, that one person's treasure is something that another person discards like a worn-out pair of shoes.
It's also a normal thing.
The nobility of human beings...
Pretty much the same.
Fang Tian only sighed slightly, then reached out to pick up the next sample, then separated out a small amount and put it on the tip of his tongue.
Then my whole body felt like it had been electrocuted, charred on the outside and tender on the inside!
Okay, it seems a bit too exaggerated to say this, but in fact it is not too much. Although Fang Tian’s tongue is not as magical as his nose, it is also extremely sensitive, and this salt...
Damn, that’s a rich flavor. It’s sour, sweet, bitter, spicy, and salty. It’s all in one place. In addition, it also has a “astringency”, which is very, very astringent!
Is this kind of salt also edible for humans? Aren’t you afraid that you will ascend to the heavens immediately after eating it?
Well, for the locals, the salt in Yanyan Town, which is the salt usually used in Fenglin Courtyard, is probably slightly better than this kind of salt. Salt, it is not rice. You can eat as much as you like at one time.
Just put some on the ground and eat, and people will probably get used to it.
But Fang Tian wasn't used to it.
He sighed several times, then quickly rinsed it with water, and then he barely recovered from the numbness of his tongue. Hey, Shennong is not that easy. If it weren't for the purpose of judging the salt, I wouldn't have done it just now.
Then put some real food into your mouth.
At the same time, Fang Tian's expression became more solemn.
This salt is poisonous!
It's not just bitter or astringent, it's real, and it does harm to the body to a certain extent. Although the magnitude is very small, it can even be said to be extremely slight, but it's poisonous.
And what could this toxic substance be?
Dissolved in water, may exist on a large scale in lakes and seas...
Fang Tian almost immediately thought of something, nitric acid, specifically, sodium nitrate, or potassium nitrate, something used to make black powder in his previous life...
There is a large amount of sodium and potassium nitrate in this section of the Calado Mountains, or in nearby veins.
This was the first thought that flashed through Fang Tian's consciousness, and the second thought was, with the current material conditions, can this salt water be purified?
Judgment is judgment, Fang Tian still needs to test it.
For Fang Tian now, simple filtration doesn't even require a flick of the finger or anything. It's just a thought and it's done. Then, taste it again, um, taste it!
This time Fang Tian closed his eyes and tasted it. ——————————
It was scared by the taste just now, and the shadow came.
Filtering is still useful, a great effect, obvious, a lot of impurities are removed, but the most critical role does not play. That is to say, for things that can also dissolve in water,
This kind of superficial technical means is nothing.
So, according to different solubility points, separate by heating and condensation?