The two sides changed places, and Boss Zhang also asked someone to bring two boxes.Open the box and remove the tools inside.Boss Zhang grabbed the coin with tweezers and went out with a flame gun to burn the gold coin red.Anyone who has studied physics knows that all kinds of metals have their own melting points, and when exposed to the same high temperatures, the changes are also different.If the material is the same, the color of the object at the same temperature is the same.In the language of physics, temperature represents how violent an object's molecules are.Observe the process of high temperature, and observe the color change of the surface after it cools.The ancients tested gold and tested the purity of gold is also this method, although the method is ancient, but fortunately it is practical!
Real gold is not afraid of fire, does not change color at high temperatures, and does not change color after cooling.Boss Zhang took out the tools in the toolbox from time to time and tested Li Lin's two gold coins.Qiu Shao sat on the side, sipping tea.It just so happened that recently their department wanted to send some money to the expatriate members, but recently the online virtual currency has faced a crackdown, and the underground money banks are the objects of surveillance by the intelligence departments of various countries, and only the Golden Dynasty is the best way.That's why Qiu Shao found this person.Secretly buying the gold in Li Lin's hands not only helped Li Lin, but also helped solve the problem of the capital exchange of members of his department.Regarding the gold in Li Lin's hand, Qiu Shao glanced at it, and it looked a bit like a Nordic gold coin, but none of the Nordic gold coins in the past dynasties were so big, and there was no such pattern.What is the origin of this batch of gold, Qiu Shao doesn't want to check!
One is to believe in Li Lin, and the other is too lazy to bother.In short, after this batch of gold is melted, it can be made into gestures or decorations, and sent to the intelligence agents through their own peripheral members."
Do you have any other gold coins in your hand?"
After Boss Zhang inspected the two gold coins in Li Lin's hand, he opened his mouth again."
Yes!"
Li Lin took out a few gold coins from different pockets and handed them over, and then asked curiously: "Boss Zhang, what is the purity of these gold coins?"
”"Not very pure!"
Boss Zhang said truthfully, seeing that Li Lin's face changed, he spoke again: "There are many other elements contained in these gold coins, and many of these elements I have never seen!"
Lead, iron and other common impurities can be eliminated!
Messing with these impurities can be something that is an absolute rarity!
Absolutely rare?
”Li Lin shook his head, everything in the Shenwu Continent seems to be very backward, it is already very civilized to be able to mine common elements such as gold and silver, and to include it in the currency, they can't have an industrial civilization, how can they find and extract rare elements?
”Although Li Lin didn't go to school much, he also knew the rarity of some elements in nature, and even knew that some elements were extracted at a very high level.Boss Zhang took a few gold coins from Li Lin and went to the magnifying glass to observe for a long time.Then what seems to come to mind?
Take out a sharp knife and scrape a little powder off the gold coin, pour it into a bottle, and then drip some liquid from another toolbox into the bottle.After a while, Boss Zhang's face gradually showed a smile."
What's wrong?"
Seeing that Boss Zhang seemed to be interested in gold coins, Li Lin and Qiu Shao both wondered.Just now you said that there are a lot of impurities in these gold coins, why do you seem to be happy now?
There are a lot of impurities, which means you can't make much money this time!"
You gold coins contain a lot of palladium!
Do you know what my solution is?
Hydrogenated Gong!
”Boss Zhang picked up the bottle of liquid and asked himself: "Hydrogenated Gong does not contain hydrogen ions, but after encountering palladium ions, palladium hydride will be produced immediately, and a pale yellow precipitate will appear!"
”As he spoke, Boss Zhang picked up the glass just now and showed it to Li Lin and Qiu Shao.Mom sells batches~ Lao Tzu is here to sell gold, not to take chemistry classes.Li Lin said in his heart, but Boss Zhang was still talking with great interest.After waiting for a long time, Boss Zhang finished the chemistry class."
Boss Zhang, what is this palladium?"
After listening to it for a long time, Li Lin was still confused."
Uh......
I ...... just now" Boss Zhang opened his mouth, he had just finished talking to Li Lin about palladium, but he didn't expect the young man in front of him to take his words as a deaf ear.After being embarrassed for a moment, Boss Zhang pursed his lips, sighed silently in his heart and said, "Palladium, you can treat him as platinum!"
But it's not platinum!
”"Is it platinum or not?"
Li Lin stretched his neck and said.If it's gold, then it's good, if not, then the gold sold this time is estimated to be greatly discounted."
Yes~" Boss Zhang swallowed his saliva for a long time and said firmly.At the same time, he glanced at Li Lin with disdain."
Then the price ......"
"It's the same as the price of gold!"
Boss Zhang exhaled, feeling that the knowledge he had been brewing in his stomach for a long time was all wasted."
Boss Zhang, will you suffer?"
Li Lin asked again, with a hint of nervousness in his eyes."
Nope!
It's a rare metal!
And it's also a national strategic metal!
There are few production areas in the world, too!
In addition, the refining process is very complicated!
But some instruments are indispensable for this metal!
Mainly on spacecraft, that's a lot of this stuff is needed!
The value is still above gold!
”Boss Zhang sighed silently and explained to Li Lin that he would no longer show his professional knowledge this time."
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If only you didn't suffer!"
Li Lin muttered in a low voice, and suddenly raised his head again and said, "Since this thing is so precious, then the price must be higher than gold, so I have this gold coin."......""
Boss Li, palladium is a rare metal!
But as I said, the refining process of this kind of thing is very complicated.After I buy your gold coins, I will dissolve them, and then I will refine these rare elements!
These are big costs, in other words, even if it's twice as expensive as gold, I don't make your money!
”Boss Zhang said, put all the tools on the table back into the toolbox, and poured himself a cup of tea.Palladium is a metal produced in only two countries in the world, one is South Africa, one is a woolly bear, and the other countries are like hungry children, waiting to be fed.In particular, several large countries in the aerospace industry are eager for this metal far beyond the imagination of ordinary people.The point is, there is no market for this rare metal.In the past, South Africa was a big country, and although private mining of some rare minerals was allowed, there was also a list of prohibited mines, and other countries had to spend a lot of money to buy this thing.And the red woolly bear country does not export this metal ore.So some red-eyed countries have overturned the country.In an instant, the country's rare minerals became the people of the world.A technological superpower became an industrial country in a few years, and in a few years it went from an industrial country to an exporter of primary raw materials, and then a poor country.After South Africa fell, the price of rare minerals fell to a freezing point.People from all over the world are not stupid, and they are pouring in, dividing the country's minerals, and mining and hoarding them on a large scale.With the over-exploitation in recent years, South Africa's resources are slowly depleted, coupled with the hoarding of many countries, the price of rare materials in the market has begun to rise again.()