The whole family of villains criticized her wildly, but the princess treated her with medical treatm

When soda ash is dissolved in water, the carbonate ions and copper ions in it will undergo a double hydrolysis reaction, forming blue floc to precipitate copper hydroxide and carbonic acid. The two hydrolysis promotes each other to generate carbon dioxide gas.

There are still unhydrolyzed carbonate ions and copper ions in the solution, which further react with copper hydroxide to form basic copper carbonate. The copper ions react to form copper carbonate, and then quickly decompose into copper oxide, which is black.

Based on this reaction, it was determined that the queen mother had been poisoned.

Toxic liquids containing copper ions can cause dehydration and atrophy of a person's vocal cords and esophagus. Chronic poisoning for a long time can make a person mute and unable to speak, and can lead to nausea and vomiting, until he collapses and convulses to death.

"The discomfort in her throat was not caused by a fever, but by dehydration and atrophy caused by copper ion poisoning."

Mu Tingxue felt a chill running down her spine.

Those who could poison Queen Mother Yan’s food and decoction must be the maids and eunuchs in Qihuang Palace!

The queen mother has many political opponents. More than [-]% of the tens of thousands of officials in Yunhuang State University are not convinced by her. The radiation is too large. Finding the mastermind behind the scenes is like looking for a needle in a haystack.

"Thankfully it was discovered early!"

Mu Tingxue simply couldn't imagine what kind of bad consequences this kind of chronic poison added to the diet would have if used for another month.

Empress Dowager Yan was poisoned and mute, unable to handle government affairs until she collapsed and died; and the regent was still at war with the Beiyu Kingdom and would not be able to come back immediately within a month.

The world is shattered and the earth is shattered in an instant!

The Yan Party is leaderless and will be massacred by the Li Party. The imperial power may fall into the hands of King Qin Ling, or the young emperor Xie Xuanchen may take charge...

"Your Highness, Princess? What's wrong with you? Are you feeling uncomfortable? Your face is so ugly."

Bai Xiaogong, who was standing aside, asked worriedly.

"Ah, nothing."

Mu Tingxue retracted her thoughts and asked, "Don't tell anyone what happened today. After I finish handling the matter, I will come back to teach you the reaction principle of this flocculent blue precipitate."

Bai Xiaogong was overjoyed: "Your Highness, Princess, don't worry! Xiao Bai has the strictest mouth!"

He wants to learn.

*. *. *

Mu Tingxue returned to Qihuang Palace.

"Drink milk."

Three large bottles of pure milk, lined up in a row, plus two hard-boiled eggs, "eat and drink."

Empress Dowager Yan had beads of sweat on her forehead: "Daughter, there are too many..."

Mu Tingxue dismissed the maids and eunuchs in the palace, went over to her, and lowered her voice: "Someone gave the queen a chronic poison that will make you mute. The protein can neutralize the poison, protect your gastrointestinal mucosa, and prevent toxins." diffusion."

Queen Mother Yan suddenly changed her color, stretched out a pair of hands as thin as dry wood, grabbed the milk, and drank it without any hesitation.

I drank three large bottles without stopping until my stomach was very bloated.

Then eat eggs.

"The best detoxification method is gastric lavage. Your symptoms are still very mild and not serious. Catharsis is also fine."

Mu Tingxue did not have a gastric lavage machine at the moment, so she could only give her mother a relatively safe laxative.

After Empress Dowager Yan ate it, she began to show her respects not long after.

Going to the toilet again and again.

I kept tossing until it got dark. I couldn't pull it anymore. The toxins were almost excreted and the medicinal effect was gone.

Empress Dowager Yan looked a little sluggish, lying half on the Jinyu bed. Mu Tingxue twisted a hot face towel to help her clean her face and hands, then helped her take off her court boots, and pulled a quilt to cover her.

"check."

The Queen Mother's symptoms of throat poisoning have been relieved, and a pair of eyes filled with terrible murderous intent.

Mu Tingxue understood what she meant: "According to the Queen Mother's decree, all the maids and eunuchs in Qihuang Palace will be searched!"

Yan Yang left a team of elite soldiers for her.

At this moment, this team of elite soldiers listened to her order and poured into the residences of all the maids and eunuchs serving in Qihuang Palace. They searched and rummaged carefully, leaving no corner untouched.

The list of suspects was placed on the imperial desk in the Queen Mother's palace, with a red pen next to it.

More than twenty maids and more than thirty eunuchs were kneeling in the courtyard, waiting to be interrogated.

Kneeling at the front are Yue Ci and Hua Shi.

The two of them looked pale and quite uneasy.

The mark of the slap on Hua Shi's face was still red and swollen horribly: "Sister Yue Ci, what are you doing? You tore down our house."

Yue Ci lowered his eyes: "I don't know."

Hua Shi complained bitterly: "Since the arrival of the eldest princess, Qihuang Palace has not been able to live in peace. I am beaten and scolded, and I have to follow the rules to establish prestige. It is annoying to death..."

"Report! In the palace maid's poetry painting room, an unknown blue liquid was found! As well as some love letters with Yu Ruhai, the minister Zuosi Langzhong!"

"Report! In the palace maid Yue Ci's room, letters to and from Prince Qinxing of Xiaoxiang Shuiyun Pavilion were found!"

"Report! In the room of eunuch Zhao Si, we found a little man who was tired of winning with acupuncture!"

Half an hour later, Mu Tingxue was shocked when she looked at the search results on the table.

Her original guess was that the poisoner was Yue Ci, because Yue Ci had an affair with Master Qinxing, and Master Qinxing was a disciple of the master of Xiaoxiang Shuiyun Pavilion. The master of the pavilion was also involved in the abduction and trafficking of the eldest princess.

but--

She read those letters, and they were nothing more than Mr. Qin Xing's nonsense, asking Yue Ci to resign from Queen Mother Yan as soon as possible and leave the palace so that they could elope and stay together.

Instead, she was painting poems. She really had a bottle of poisonous blue liquid containing copper sulfate hidden in her room!

"what is this?"

Mu Tingxue opened the lid of the porcelain bottle and poured out a few drops of light blue solution.

The painting and poem hesitated: "It is... the spring water in my hometown. I bring it with me to comfort my homesickness."

Mu Tingxue continued to ask: "Where is your hometown?"

Painting poem: "Cangzhou is relatively remote, with poor mountains and harsh waters."

"Oh, let this princess guess, is the spring in your hometown called Yaquan?"

There is a story in the Romance of the Three Kingdoms. Zhuge Liang captured Meng Huo seven times and led an army to attack the southern king Meng Huo. When he went to the poor mountains and rivers of Yunnan, he encountered four poisonous springs. One of them was called "Silent Spring". After the soldiers drank it, they could not After talking, those who drank too much were poisoned to death. It was actually a kind of spring water containing copper salts, which caused copper ion poisoning.

The Cangzhou area should have similar dumb springs like Yunnan in China.

Hua Shi's brain was pounding and he was dumbfounded, murmuring in fear: "Slave...Slave..."

"The palace maid painted poems in a bold and vain way, colluded with the court officials, and murdered the Queen Mother. She is an unforgivable crime!"

Mu Tingxue's tone was very gloomy, with a majestic aura crushing over her, "The accomplice, Master Zuo, Yu Ruhai, will be arrested immediately and sent to Zhao Prison for trial!"