"Anna, there's no problem here, I always feel like there's going to be an explosion......" After thinking about it, when leaving the door of this laboratory, Lu Tao still reminded Anna, this can be regarded as his benevolence and righteousness, although it seems that the amount of gunpowder being experimented in the laboratory is not large, in case the people inside suddenly feel that such a small amount is not enjoyable, and a large amount of gunpowder is ignited together, I am afraid that this golden alchemy association building will not be able to be saved.

"It's okay, it's okay, there's a lot of explosions in this lab, we're used to it. Anna smiled and waved her hand, seemingly completely unconcerned about the meaning of the word explosion.

Lu Tao: "......"

What does Anna mean by that? What do you mean by being used to it, can you still get used to explosions? It's like eating food that can only be eaten once in a lifetime, is this a change of tricks?

“...... Well, since you said so, so be it, let's go to the next lab. But since Anna had already said so, Lu Tao could only listen to his opinion, and secretly decided to leave here quickly after walking through this circle, so as not to go up to the sky with the golden outer wall later, by the way, he would call Proas later, which could be regarded as repaying him for his kindness in bringing him to visit the Alchemy Society.

"Huh, sir, won't you go in and have a look? Lord Langston is a kind alchemist, and he usually lets anyone visit him, and the experiments he does look pretty good, with sparks and white smoke coming out with a bang, as if by magic. ”

Lu Tao twitched the corner of his eyes, and said to Anna cautiously: "I still don't want to watch it...... That kind of black powder, if it does explode, is very dangerous. ”

Anna tilted her head, "Dangerous?" but Lord Langston's laboratory has always been the safest of all of us, and although explosions often come from the laboratory, Lord Langston and his assistants have never been injured by it. ”

“...... Okay, let's move on to the next lab. ”

The furnishings in the next laboratory were similarly simple, with a lit alcohol lamp on the table, and an old man with the same gray hair burned on the flame of the alcohol lamp with a metal rod of unknown material, and as the flame rose, there seemed to be a faint blue light condensing around the metal rod.

What is this doing again?

Lu Tao's doubts did not last long, after a while, the old man picked up another metal rod from the table, and continued to burn it on the flame, this time the color condensed around the metal rod turned into light purple, like a beautiful lilac, blooming with its own beauty.

“...... Flame reaction?" Lu Tao stretched out his hand and touched his chin, if he guessed correctly, this should be an experiment of color reaction, this Lu Tao is familiar, he did such an experiment in high school, and he will also match the color of the flame reaction to the metal during the exam, oh, by the way, what is the formula for the flame reaction?

"Potassium purple sodium, yellow lithium purple red, rubidium purple copper, barium yellow-green, calcium brick red, strontium magenta, cobalt light blue, iron colorless ......"

"What did you say, sir?" Anna looked at curiously, "What is colorless?"

"Oh, nothing, I just said it casually. ”

Lu Tao shook his head secretly, he didn't expect that after such a long time, he still remembered the flame reaction mantra taught by his teacher in high school, and he obviously had all the courses in high school

It's not finished. However, speaking of Lu Tao's favorite classes in high school, that is, physics and chemistry, other courses such as Chinese and mathematics, all of which are abstract things, mathematics not to mention, Chinese courses, I don't know why, always want to answer the superfluous meaning from a ordinary article, just like those texts If they are not written in a complicated way, they are not enough to reflect the profundity of Chinese civilization。

The white-haired old man who had been doing the experiment before, followed by an assistant, seemed to be startled by Lu Tao and Anna who were standing in front of the door, and said angrily: "Anna! Who is this? Don't you know that my experiment is very important and must not tolerate other people's interference?"

"Ah...... Lord Hargrove, this is someone brought by His Highness Proyas, who wants to visit the laboratory of the Alchemy Society......"

"Proyas, why is that kid here again!A useless prince, just stay in the palace and go to our Alchemy Association to do something?!" The alchemist named Hargrove said a lot of words angrily, and turned his head to look at Lu Tao: "Okay, okay, the person brought by Preas is not a good thing, you should take him away quickly, otherwise I don't recommend giving him some colors to see!"

Lu Tao: "......"

Wow, this old guy is really angry, he looks like a villain's face, so Lu Tao can't wait to stop him and smash his red-glowing rosacea smash flat.

"Hurry up, hurry up, don't stand in front of my lab!"

Hargrove began to drive people away, Lu Tao had an idea, and said directly: "Different metals have different colors when burned, if the color is not right, it means that the texture of the metal is not pure enough and contains other impurities. ”

The gray-haired Hargrove was stunned for a moment after hearing what Lu Tao said, and then stared at Lu Tao viciously: "What? How do you know my secret?! Anna saw the good things you did, the people you brought stole my research! I'm going to go to the elder and expel you!"

"What is your research? Is this kind of common sense known to anyone?" Lu Tao interrupted Hargrove's words angrily, after all, Anna was about to cry when she heard Hargrove's words.

In Lu Tao's time, not to mention high school students, even elementary school students could say a thing or two, and this is also a phenomenon that is easy to experiment, probably all the way back to the middle of the nineteenth century. Bunsen, the chemist Bunsen, who invented the Bunsen battery and refreshed the electrolysis method of the metal industry, designed the Bunsen burner to produce an almost colorless flame when burning, so Bunsen began experiments, he lit three gas lamps at the same time, and added a salt solution to each lamp. One of the drops is a saturated table salt solution, another is mixed with lithium salts, and the third drop is mixed with potassium salts. As a result, all three flames were yellow in color, and no difference could be seen. Apparently the yellow of the sodium flame obscured the other colors. Bunsen also observed the flame through blue glass or indigo solution as a color filter, and found that the yellow color was filtered out, the flame of the saturated salt solution became colorless, the flame of the salt solution mixed with lithium salt was dark red, and the flame mixed with potassium salt was light purple.

Hawkers,In short, it's such a complicated operation.,Bunsen opened the door to the metal flame color reaction.,By the way, he also invented a spectrum analyzer later.,Used to detect the composition of metals.,Later,

It is even possible to study the chemical composition of the sun and other stars. Of course, these contents are all what Lu Tao saw from the "Celebrity Biography" at home, Lu Tao read it as a storybook when he was a child, and now it has finally played a role.

As for whether there are other people who have made outstanding contributions in the history of the flame reaction, it is a pity that it is not written in the "Biography of Celebrities", after all, it is just a miscellaneous book for more than ten yuan a roadside stall, and it is good to be able to read the words clearly.

"How is it possible! This phenomenon was obviously discovered by me first!" When Lu Tao recalled, Hargrove was not idle, he reached out and grabbed Lu Tao's sleeve, as if he was very worried that Lu Tao would run away like this, and then continued aggressively: "You must have stolen my research results!

Lu Tao pursed his lips, although it is a virtue to respect the old and love the young, but for those unreasonable old cultivators, there is naturally no need for extra politeness: "Since you said that you found it, then how about we compare and see who knows more?" You say first, you know which metals' color reactions, and then as long as I say more than you, how about I win?"

Because maybe Hargrove didn't know that there was such a word as flame color reaction, Lu Tao could only use the color reaction of metal to refer to him, so as not to confuse the other party.

"That's not good, if I say it first, won't those metal reactions that I know be stolen by you again?

Lu Tao couldn't help twitching the corner of his eyes. Ah, this guy is really troublesome: "Then another way, you and I will write down the metal color reaction we know on a piece of paper, and then give it to Anna to judge, whoever writes more on the paper wins, and then destroy it directly, so that you don't have to worry about leaking it, right?"

"No, Anna is not an alchemist! What can she understand? If you write a bunch of things on a piece of paper for Anna to see, then I won't lose very unjustly?"

Lu Tao: "......"

It's so troublesome, it's so troublesome that it explodes, Lu Tao has already begun to regret a little about provoking this old guy, if he is given another chance to do it again, Lu Tao will definitely not say a word more, but hurry up and run as far as he can.

"What are you doing?" Lu Tao, haven't you finished visiting the lab?"

Hearing someone call his name, Lu Tao looked back and found that it was Proyas, who came here, and Proyas was followed by a gray-haired old man who looked younger than Hargrove in front of him.

"Yes...... You're coming, Grown!

Seeing that Anna hurriedly bowed, but the object was the old man who was following Proas, and then Lu Tao understood that that person was the president of the Alchemy Association, and he didn't know why he came here with Proyas.

The president of the Alchemy Society nodded at Anna, and then asked Hargrove next to him, "Hargrove, what are you doing here? What just happened?"

"Hmph, this guy who ran out of nowhere stole my research results, I'm settling accounts with him, Elder, it is the responsibility of the Alchemy Association to protect the achievements of every alchemist in the Alchemy Association, even if it is His Highness Proas, he is responsible for it!" Hargrove said angrily to the president, and it seemed that it was Lu Tao's fault all at once.

The president of the Alchemy Association shook his head and looked in Anna's direction again: "Forget it, it's better for Anna, let's talk about it, what happened?"