His sudden announcement of his decision without a beginning or tail not only confused Ma Ziming, but even Tong Sifang was startled, and turned his head to look at Zhong Bai blankly.

"What's that?" Tong Sifang asked this question on behalf of the voices of everyone present.

"This is a small elemental complex attached to the bottom of a sample of strontium phosphate aluminum ore!" Zhong Bai's tone became affirmative: "It is it that has caused the decline of phosphate fertility!" ”

Ma Ziming felt that he could understand every word of the other party, but after connecting them into one sentence, he couldn't figure out the situation: "Why do elemental complexes cause the decline of phosphate fertilizer fertility?" ”

"It's simple."

"Because it's a sulfur complex."

"In the production process of phosphate fertilizer, once the sulfur element exceeds the standard, it will cause too much free phosphoric acid, resulting in a decrease in the concentration of superphosphate, the main substance in phosphate fertilizer, and in the actual fertilization process, the combination of phosphorus and soil becomes slow, and the direct consequence is the decline in fertility!"

Zhong Bai threw out all the reasons in one go!

Tong Sifang immediately questioned: "Wait, where is this theory?" How come you've never heard of it?! ”

"I have time to explain the theory to you, now I just need to do experiments to let everyone know the correctness of this statement, seeing is believing!" Zhong Bai turned his head to Wang Tianlin, the chief of the quality inspection department, and said, "Section Chief Wang, is there any phosphate fertilizer left in our factory that was produced before?" ”

"We have it in the quality inspection department!" Wang Tianlin replied subconsciously.

"Then please take a few of them right away, and a set of equipment needed for basic experiments." Zhong Bai commanded directly.

"Okay, I'll get it right away!" Wang Tianlin saw that the other party dared to propose to do an experiment on the spot, which was obviously very sure, so he immediately rushed out of the door.

Even he forgot that he was the head of the quality inspection department, but he was instructed by a young man who had just entered the factory for less than three days to run errands and get things!

In less than five minutes, Wang Tianlin came over with a small plastic bag containing phosphate fertilizer and a large pile of basic experimental equipment.

Zhong Bai immediately poured out a little gray superphosphate powder, put it into a beaker, poured half a cup of clean water, and stirred evenly with a test tube.

After a while, a cloudy liquid formed in the beaker, and a large number of suspended particles filled it.

But everyone still couldn't understand what connection this had with his previous judgment, so Wang Tianlin couldn't help but ask: "Anyone can do this most basic phosphate fertilizer experiment, why are you doing this?" ”

"Don't worry, there's the next step."

Zhong Bai said as he sucked in the stirred solution with a dropper, took out an acidic test strip and dropped a few drops, and the color of the test strip immediately changed!

"You see, the color of the acid test paper shows that the acid content of the phosphate fertilizer in our factory is insufficient, which will lead to incomplete reaction in the fertilization process and the active ingredients containing phosphorus can not be fully released."

"Why is there not enough acid? It's not because we don't have enough sulfuric acid in the production and use process, it's because the sulfur complex I just mentioned causes the high content of free phosphoric acid! ”

"Therefore, the quality of phosphate fertilizer can be concluded: that is, the sulfur element in phosphate rock raw materials exceeds the standard, resulting in a high free phosphoric acid component, and the objective result is that the acid content of phosphate fertilizer is insufficient, causing the decline of phosphate fertilizer fertility!"

Zhong Bai took off his gloves and explained in a sonorous voice.

His crackling fast pace was like a slap in the face, knocking everyone out completely!

Everyone, you look at me, I look at you, they all have big mouths, and it seems that everyone has countless questions to ask Zhong Bai.

In his previous life, as a scholar and chief technical engineer of the Yellow River, Zhong Bai would encounter similar eager eyes and their eagerness to try after countless times when he went to the grassroots enterprises to guide the other party to solve the questions that puzzled them for months or even years.

So at this moment, he said generously: "Everyone must have a lot of questions, right?" It's okay, I can answer everything, but now time is precious, and each person can only ask one. ”

Shan Jianping asked: "Xiao Zhong, I don't think the color of this acid test paper is any different from usual?" ”

This kind of pediatric problem is also a waste of time? Thanks to you, you're still my section chief! Zhong Bai couldn't help but complain in his heart.

Zhong Bai looked at acid test strips in his previous life probably more than some people have read more pages of novels in their lives, and he has already practiced a pair of super abilities that look at the color of the test strips with the naked eye to get a PH deviation range of no more than 0.1.

So Zhong Bai gave a confident answer: "This chromaticity PH value is about 5.3-5.5, if you don't believe it, you can do a sampling test, the next one." ”

Wang Tianlin asked: "How does the sulfur complex cause the acid content of phosphate fertilizer to be insufficient?" ”

As the head of the quality inspection department of a county-level fertilizer factory for 81 years, it is understandable that I don't know the reason for this problem, after all, the school does not teach or speak, and it is difficult to encounter it in practical work

So Zhong Bai gave a concise answer: "Because when the sulfuric acid melts the phosphate rock raw materials, the secondary generation reaction of sulfuric acid will be formed, resulting in a decrease in acidity, the next one." ”

Ma Ziming asked: "The ores are obviously produced in Nanyun Province, why didn't there be such a problem before, but now it suddenly appeared?" ”

This question is a little more technical.

If it weren't for Zhong Bai knowing that a new kind of sulfur, phosphorus, aluminum and strontium ore was mined in Xichuan Province, China in the late 80s, there would really be no way to explain it to Ma Ziming.

Compared with ordinary strontium phosphate ore, this kind of sulfur phosphorus aluminum strontium ore contains more sulfur elements in addition to containing the main concentrated elements and a small amount of rare earth elements!

So Zhong Bai gave a suggestive answer: "Because your sample is strontium phosphate aluminum ore, but the sulfur element complex that appeared on the sample in question is not its own, but the result of another sulfur, phosphorus, aluminum and strontium ore rubbing against it." In other words, the phosphate rock raw materials used in production may not be the samples in the sample room. Next. ”

Tong Sifang couldn't help but ask in the end: "Xiao Zhong, how do you know so much?" ”

As for the core question......

Of course, Zhong Bai could only give a suggestive answer: "Hmm...... I learned from books, internships, and the teacher. ”

The "teacher" he is talking about here naturally refers to Yuan Jianguo.

Seeing that Zhong Bai answered one by one, and there was a complete and clear explanation, everyone couldn't accept this fact in shock!

That is, the phosphate fertilizer quality problem that has plagued the fertilizer factory in Pingshan County for nearly two months was solved by a technical school student.

Wang Tianlin, the chief of the quality inspection department, was the first to react, and ran away with a sentence: "No, I want to see if there is much more phosphate rock left for production, and immediately drag it to the laboratory for a good test!" ”

"Section Chief Wang, wait for me! I really don't know about that! In the past, the raw materials were imported from Nanyun Province, and I am only the head of the raw materials section, and the purchase is a matter of the supply and marketing department! Ma Ziming, who was behind, immediately realized that he was responsible, and hurriedly rushed out.

And Shan Jianping and Tong Sifang came back to their senses, and at the same time stared at Zhong Bai with a gorilla-like look, and almost said the classic line in the famous TV series "Bright Sword" in their previous lives.

"You're a fucking talent!"