The yard didn't look good without a door. After chopping the firewood, Xie Xuan dismantled a broken door panel in the house and blocked the entrance to the yard.
After going in and out for a long time, there was loud snoring in the room. Boss Li was not affected at all. He was so angry that Xie Xuan was itching. However, Qin Feng caught him, so he could only work obediently.
"Little Fatty, break up all the briquettes and throw them into the stove. The stove's fire is too small!"
Most families in the north have stoves. Seeing that the briquette stove obviously could not meet the temperature he needed, Qin Feng brought the boiled iron pot to the stove, smashed the briquettes and threw them in with Xie Xuan.
.
With a few pieces of burned briquettes used as fire starters, and the dry firewood brought by Xie Xuan, the stove that had not been used for a long time quickly started to burn, and the flames went straight out along the stove hole for adding firewood.
Seeing the bubbles rising from "Gugu", Qin Feng picked up the stone from the stove, gently put it into the iron pot, and then closed the lid tightly.
"Brother Feng, you...what are you doing? This...this stone can't be eaten?"
Xie Xuan, who was squatting aside to add firewood to the stove, was dumbfounded. It was only at this moment that he understood the purpose of the pot of boiling water, but at the same time, he became increasingly confused.
If Qin Feng hadn't always behaved in an orderly manner when doing this, Xie Xuan would have thought that he had a mental problem and put the stones in a pot to boil. Not to mention that Xie Xuan had never seen it or even heard of it.
"Do you know how to eat?"
Qin Feng glared at the little fat man angrily. He was a little nervous now. After all, the current operating procedures were dictated by the master. Qin Feng himself had never tried it, so he had no idea whether it would succeed.
"No, the fire isn't big enough. Little Fatty, go and turn on the bellows!"
Qin Feng took out an industrial thermometer from his pocket. This thing was bought when he bought chromium salt liquid. It can be used in the following steps.
He put the thermometer in boiling water and tried it. He picked it up and took a look. Qin Feng handed the thermometer to Xie Xuan and said, "It's still a few dozen degrees. I'll give this to you. Don't heat it again when it reaches 212 degrees."
Already."
Xie Xuan, who was holding the thermometer, was at a loss and shouted to Qin Feng who turned around and walked out of the house: "Hey, Brother Feng, I...I don't know how to use this thing."
"Just put the metal end inside, it's not difficult."
Qin Feng left the house without looking back, looked up at the sky, and murmured: "This is easy to say, but really difficult to do!"
Ignoring Xie Xuan who was yelling in the kitchen, Qin Feng went straight out of the yard. April in the north was still a bit cold. It was already past nine o'clock and the streets seemed unusually deserted. Qin Feng's figure quickly disappeared.
Into the night.
After about half an hour, Qin Feng returned to the yard, but when he went out empty-handed, he was holding a glass jar in each hand, which seemed to contain some liquid and was constantly sloshing.
"Hey, little fat guy, have you traveled to Africa during this time?"
Carrying the glass jar to the kitchen, Qin Feng was immediately happy. Xie Xuan, who was originally fair-skinned, now had a dark face. Except for a pair of teeth, there was no white anywhere.
"Brother Feng, Uncle Feng, you are finally back!"
Xie Xuan felt sad when he saw Qin Feng. When had he ever done this kind of work? He was burning firewood and pulling the bellows, and finally he couldn't forget to test the water temperature. He was so busy that he wished he had two more hands.
"Xuanzi, don't complain. If you learn this skill, you won't have to worry about food and drink in your life."
Qin Feng carefully put down the glass jar in his hand, went to the stove and took the thermometer, put it in the water and tried it, and his face suddenly showed joy.
"Little Fatty, you are really the one who eats this bowl!" Qin Feng patted Xie Xuan on the shoulder and said, "Keep this process in mind, and remember the water temperature as well."
"Brother Feng, I have already remembered it. Isn't it 212 degrees?" Although Xie Xuan didn't know why, he was not confused. He knew that Qin Feng must have his reasons for doing this.
"Okay, no need to burn it yet." Qin Feng saw that the fire was almost done and called Xie Xuan to stop.
Seeing Qin Feng bring a washbasin from the house and pour the liquid in the two jars into the basin, he couldn't help but curiously asked: "Brother Feng, what are in these two jars?"
Where did you get it?"
"Hey, don't get so close, you'll suffer if it gets on your skin."
Qin Feng stopped Xie Xuan, who was approaching, and said: "One of these two is concentrated hydrochloric acid, and the other is concentrated nitric acid. Remember, the concentrated hydrochloric acid is 40%, and the concentrated nitric acid is 6%."
Ten, when the two are mixed together, it is called aqua regia!"
Xie Xuan scratched his head and said with a grimace: "What is concentrated hydrochloric acid and concentrated nitric acid? Brother Feng, I don't understand!"
Qin Feng glanced at Xie Xuan helplessly and said: "You kid, please learn chemistry from me. This thing is a strong acid, which is many times more corrosive than sulfuric acid. Do you understand?"
"Sulfuric acid? This...I know this!"
After hearing Qin Feng's words, Xie Xuan couldn't help but take two steps back, widened his eyes and asked: "Brother Feng, where did you get this thing?"
In the mid-1980s, a foreign film called "Midnight Song" was released in China. The protagonist in the film was disfigured by someone pouring sulfuric acid on his face. The ugliness of the image frightened many people.
Xie Xuan's chemistry scores were a mess, but he learned about the power of sulfuric acid through that movie, and his face suddenly became a little weird. Could it be that Brother Feng prepared this thing to block the road and rob him?
Qin Feng replied casually: "The school laboratory has plenty of it. This is industrial sulfuric acid and it's not worth much."
On the way back, Qin Feng took a fancy to the Shishi University of Science and Technology not far from Li Tianyuan's home, but it was still light at that time, so he didn't take action.
Of course, Qin Feng made it easy, but it took a lot of effort to steal the two glass jars of strong acid, and he was almost discovered by the school patrol team.
It's just that chromium salt liquid can be purchased from outside, but dangerous goods such as strong acids cannot be bought casually. You must issue a certificate from the unit. This risk Qin Feng must take.
While speaking, Qin Feng's hands did not stop. When the two strong acids were mixed together, a pungent yellow smoke came out of the iron basin.
Putting down the glass jar, Qin Feng used a ladle to take out the jadeite stone from the pot and put it directly into the basin. When the hot stone encountered the strong acid, there was a "sizzling" sound, and the smoke became bigger and irritating.
Xie Xuan, who was standing aside, burst into tears.
"Okay, let's go out!"
Qin Feng couldn't stand the smell in the kitchen, so he pulled Xie Xuan out. It took more than half an hour for the smoke in the room to dissipate, but the unpleasant smell filled the entire yard.
"Brother Feng, what's the point?"
Xie Xuan is not stupid. He has already seen some clues. Qin Feng seems to be using this method to change the stone, but there is some mystery in it that Xie Xuan cannot yet see through.
"Little Fatty, soaking raw jadeite with strong acid can dissolve the impurities existing between the jadeite grains. Without these impurities, the jadeite seed water will become transparent, and the jadeite from shit can also turn into glass.
kind……"
Qin Feng intended to train Xie Xuan and explained in great detail, "Actually, it is best not to heat the jadeite during the soaking step. It is used when adding Qinse, but we don't have enough time and can't wait that long, so we just left.
Take the shortcut."
"What the hell, turned into a glass species? This...how is this possible?"
The more Xie Xuan listened, his mouth opened wider, and he said with a look of disbelief: "Brother Feng, with this technology, wouldn't we make a fortune?!"
After following Qin Feng for two days, Xie Xuan still picked up the differences between the various grades of clear jadeite. Although the current price of domestic jadeite jewelry is not as good as that of Hotan jade, the value of top-quality jadeite carved from glass starts at one hundred thousand.
of.
"What are you thinking about? This is old-fashioned. Well, old-fashioned sounds a little nicer. But this is actually a lie. It can't be true, and it can't be true. Do you understand?"
Qin Feng slapped Xie Xuan on the head, who was dreaming of getting rich, and said angrily: "The internal structure of jadeite soaked in strong acid will be greatly damaged, making the jadeite unstable and the bright and beautiful color
It will also fade slowly. If the craftsmanship is more meticulous, the fading time will be between three to five years..."
Qin Feng glanced at the kitchen, thought about it in his mind, and then said: "This is a rough job for us. We only focus on the present and don't care about the future. I estimate that in the next twenty or thirty days, the damaged structure inside the jade will be fully revealed."
Come out, if you don't touch it, it will probably break..."
At this point, Qin Feng's face became serious, "The most important point is that some jadeite made with chemical corrosives contains radiation, and it is beneficial and harmless to wear it on the body. Xie Xuan, this recipe is against the law.
Tianhe can only deal with profiteers and cannot be used easily..."
Jade was popular for a period of time in the early 2000s and 1930s, and the benefits of counterfeiting were very substantial. After some people continued to ponder, this recipe was passed on to Qin Feng.
According to Zai Shi, not many people knew about this craft even in the 1920s and 1930s, and he got it from a Qianmen disciple by chance.
Therefore, Qin Feng has reason to believe that the third wave of jade craze in China has just begun, and those guys who specialize in manufacturing and selling fake products have definitely not yet developed this method. This is where his confidence in the subsequent layout lies.
"Brother Feng, I understand, but why do I think we are profiteers?"
Although Xie Xuan still didn't understand, he kept Qin Feng's words firmly in his heart. No one could have imagined that the country's largest jade profiteer would start in such a dilapidated small courtyard.
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