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

When extracting the plant ash solution, the regent took the initiative to help.

He helped his fiancée put up a shelf.

Mu Tingxue poured a certain amount of the plant ash solution into the clear salt mineral liquid in the conical pier, and a lot of white precipitate immediately appeared.

"Is this refined salt?"

"Your Royal Highness, are these white things snow salt?"

Mu Tingxue shook her head, and a basin of cold water extinguished their expectations: "The white precipitate is a toxic substance in the salt mine."

Calcium ions and magnesium ions were successfully removed by the plant ash solution.

The soldiers were amazed and felt the charm of high school chemistry intuitively for the first time.The eldest princess is their teacher.

"The sixth and final step is to extract the refined salt you want."

Mu Tingxue raised her hand to wipe the sweat from her forehead and looked at Yan Yang beside her with a smile, "Help me light a fire."

The regent obediently piled firewood and spread charcoal.

A large porcelain pot container was placed on the shelf, and the detoxified and filtered refined salt solution was poured into it.

Mu Tingxue rolled up her sleeves, her arms were already a little sore, and she was stirring while cooking.

Yan Yang couldn't bear it when he saw that she was working hard, and her snow-like arms were splashed with hot solution. He immediately grabbed the oversized porcelain spoon from her hand and did the mixing for her.

Mu Tingxue said thank you.

"You sit here."

Yan Yang pointed to a crystalline salt mine stone glowing with rose pink beside him, "If I do something wrong, please correct me."

Mu Tingxue sat down to rest for a while and supervise the work.

Yan Yang couldn't hide his excitement as he watched the salty taste evaporate from the liquid in the porcelain pot, and the fine white salt gradually precipitated from the bottom.

Boil the solution until it is dry and all the water has evaporated.

A thick layer of hard white fine particles was left on the bottom of the porcelain pot.

As a rookie extracting refined salt for the first time, the Prince Regent eagerly sought confirmation from professionals: "Your Highness, take a look, is it done?"

Mu Tingxue nodded: "It's done. Break it into small pieces and grind it into powder. It's edible refined salt."

Yan Yang couldn't even wait to break it into pieces, so he broke off a small piece and put it in his mouth to taste.

The rich salty taste ripples between the lips and teeth.

Not a trace of bitterness!

The Regent smiled. At this moment, he was happy and satisfied.

The Dongsang Kingdom destroyed the salt road and imposed a ten-year "salt blockade" on Yunhuang. At this dusk, it finally came to an end.

"Come and taste."

Yan Yang has broken the broken pieces into fine, crystal-clear powder of refined salt.

The soldiers rushed forward wildly, cheering like mountains!

He wet it with his fingers and couldn't wait to put it in his mouth and suck it.

Very salty!It's not salty like coarse salt.

Very white!It is much more delicate than the snow salt and green salt of Noble Tegon.

"We can make refined salt from the salt mine, which is a great blessing to Her Royal Highness the Princess!"

"Great work! From now on, brothers will all have refined salt to eat." A young and energetic soldier threw the yellow-brown coarse salt block wrapped in his arms into the river, crying and laughing, "This piece of shit My son will never eat it again."

"Brothers, follow His Highness to defeat the Seven Kingdoms!"

……

The scene was nothing short of crazy. Some of the Qiu Ba soldiers who usually abide by military discipline had mixed feelings, some were moved to tears, some had flushed faces, some knelt down and kowtowed, some were dancing, and some were impassioned. Of.

Under the order of the regent, the Maomaoshan mining area was under full martial law.

Those who trespass will be killed!

A military salt factory controlled by the most powerful person in Yunhuang was quickly built.

Yiying salt-making equipment, as well as plant ash raw materials purchased from various places, are continuously sent to the salt-making factory.

The Ministry of Industry also sent the best construction team to support, and dormitories, canteens, warehouses, and salt-making workshops were built one after another within a month.

If it is built so quickly, will it be a shoddy project?

of course not!

Because their construction wages are settled with refined salt!Day end!

The construction team really wants to work non-stop for twelve hours a day. Refined salt is such a precious thing. Give it to them in silver. As long as the project reaches the target, you will be allowed to take home two kilograms of salt every day.

Just tell me whether to do it or not!

Mu Tingxue and Yan Yang supervised the work personally. They both lived here and did not return to Yundu for several days.

In ten days, the soldiers' skills were not yet proficient enough and the workshop was not built. They extracted one hundred thousand kilograms of salt by hand.

Mu Tingxue took the initiative and changed the salt used for three meals a day in the military salt factory from coarse salt to factory refined salt.

Naturally, there were cheers.

In 20 days, the salt-making workshop should be fully equipped, and some processes adopted assembly line operations, such as filling saturated salt water in huge clay pots for filtration. In addition, the 300-soldier salt workers gradually became more and more skilled, and a total of [-] million jins of refined salt.

"The ashes are consumed too quickly, and there is no longer enough stock in the warehouse. Your Highness, what should we do?"

A primary school student came to report hurriedly.

Yan Yang said in a deep voice: "I have sent people to collect plant ashes across the country."

There is also a buffer time for collecting things.

Mu Tingxue knew that carriages and horses were slow in ancient times, so she had already prepared: "Don't worry, there are two other ways to make refined salt that don't require plant ash."

"Oh? What's the method?"

"The first method is slightly more expensive." Mu Tingxue explained, "Add soy milk to the mineral salt solution boiled in a huge ceramic tank. The soy milk will react with toxic substances and form foam visible to the naked eye. Operation, the water can be boiled to dryness to obtain white salt."

In fact, it is a protein coagulation reaction.

Yan Yang said: "Soy milk needs to be made from grain, so the cost is a bit high."

Ordinary people don't have enough food to eat, so they still use soybeans to make refined salt.

"The second method is called the soil drenching method. It costs almost nothing and only requires a can of saturated salt solution." Mu Tingxue also felt that using soy milk was inappropriate and it was too much of a waste of beans.

"I am an ignorant person, so I beg my cousin to give me some advice."

Yan Yang bowed his hands in a very humble manner and performed a student salute.

Mu Tingxue was amused by him and said angrily: "You are still poor. There is nothing special. Repeatedly pouring and washing the salt mineral powder with saturated salt solution, crushing it and then washing it, the toxic components will be dissolved in the water. Repeat After this process three or five times, the coarse salt will be washed finer and finer, and high-purity refined salt will be obtained.”

The principle is that saturated salt water cannot continue to dissolve the sodium chloride in the salt mineral powder, but it can dissolve impurities.

Yan Yang was moved: "This method is wonderful!"

Mu Tingxue added: "The only disadvantage is that part of the coarse salt will be lost during the washing process."

"It's okay."

Yan Yang's eyes revealed a deep and powerful light, "The Maomao Cave has been explored. The number of salt crystals is astonishing. The salt in just one cave is enough for the people of Yunhuang Kingdom to eat for hundreds of years."

There is so much raw material that losses don't matter.

After some discussion, the new soil-drench method for making salt was moved to the workshop.

Mu Tingxue looked at the millions of kilograms of refined salt piled up in the warehouse, and the soldiers were packing them according to the kilograms.

One problem is already looming - pricing!

"Currently, it is five hundred coins per pound of salt." Yan Yang reminded, "Yunhuang's salt tax accounts for more than 60.00% of the total fiscal revenue. If you set it too low, you are harming the national interests, and the national treasury's annual revenue will be less and less. , it’s hard for you, the Minister of the Ministry of Finance, to hold down the position.”

Mu Tingxue sighed quietly.

Why doesn't she know?

If she prices the refined salt too low, ten cents or twenty cents, other aristocratic families and salt merchants will unite against her and buy all the refined salt produced in Maomaoshan at a low price, and then sell it at a high price, and the common people will still pay a low price. I can’t even eat refined salt.

"We can only lower it slowly."

Mu Tingxue took a deep breath and cast her resolute gaze in the direction of Yundu. "First it will be reduced to [-] yuan per pound. The Ministry of Household Affairs will issue a message and the price of salt will be unified across the country. The reduced tax revenue will be used by temples, clans, Honorable men and noble families will make up for it."

Yan Yang asked: "How to make up for it?"

"Temple, clan, nobles, chamberlains, relatives, ministers, and aristocratic families all have a lot of land in their names, and they have not had to pay taxes for generations. The total area is more than 700 million acres. Let them all pay taxes, and every acre of land By taxing three cents of silver, the state treasury will have millions of dollars more every year!”