The old Taoist priest has discovered that he is a talent since the last mountain god incident.

How to say it?

This person likes to study some strange and unconventional things, such as writing and painting on white paper with vinegar and then roasting it over fire, which can be revealed.

There is also a hot oil pan to detect objects, put your hand into the hot oil and take out the bottom items of the pan, and take it out without any damage.

It seems very magical to outsiders. This person has magic and superpowers.

Actually, it is not at all. The principle is very simple. It uses different objects and has different dense points and boiling points.

The oil pan in the "oil pan" is actually not filled with oil, but a mixture of oil and vinegar.

However, because the density of vinegar is high and the density of oil is small, when the two are mixed, the vinegar sinks to the bottom and the oil floats on it, which looks like a pot of oil is filled. In fact, there is only a layer of oil floating on it.

Then heat the oil pan. The boiling point of vinegar is lower than that of oil. When the pot boils, the temperature is not high.

At this time, reach out to pick up the object and it will not burn at all.

There are several other cases of this, which were studied by the old Taoist priest himself.

This is a bit awesome.

However, he has developed these things to deceive people, but he has to admit that they are also of great significance.

Therefore, Wang Kang handed over this matter to him.

Outside the courtyard, soldiers stood guard and patrolled. When they saw Wang Kang coming, they opened the door to greet him.

After entering the yard, I noticed that it was a different place. Although it was a house, it had been specially renovated and connected the two places, and it was very large inside.

The yard is surrounded by transplanted flowers, roses, peonies, orchids, lilies, a string of red, peony flowers, etc.

The fragrance of flowers wafts away and the fragrance overflows.

There were also specially hired women in the yard who were watering flowers and taking care of them. When Wang Kang walked in, he stood up to salute.

"Master Kang,"

"You are here,"

They all knew that this young master was the current master of Xinfeng County.

"Where is Lao Bai?" Wang Kang asked.

"Master Bai is in the backyard, do you need to inform me if you need to go to report?"

"No need, you guys do your work!" Wang Kang said, and walked towards the backyard.

There were several rooms connected to the backyard. Wang Kang entered one of them. The old Taoist priest was busy in front of a vessel. Even Wang Kang came in without even notice.

Perhaps it was a long-term habit that although the old Taoist priest was no longer doing the Taoist priest's work, he was still wearing Taoist robes.

"Old Bai." Wang Kang shouted.

Hearing this, the old Taoist turned his head and said in surprise: "Hey, Young Master Kang is here."

"How is the research?" Wang Kang asked and walked up to him.

"I have made several kinds and I'm looking at whether I can find other essential oils."

The old Taoist said again: "The distiller you invented is really easy to use and very convenient."

"Haha, that's natural. Is there any finished product made? Show me." Wang Kang asked.

"Yes, you can wait."

The old Taoist responded and took out a small wooden box from the inner room after a while. He opened the wooden box and placed three small bottles inside.

The bottle is crystal clear and contains several liquids, namely pink, red and light blue.

"Master Kang, this is the perfume you want to make," said the old Taoist, "I have tried it, and it works very well."

Wang Kang picked up the red bottle, pulled out the small cork and sniffed it lightly, and a fragrance of roses radiated.

There was also an excitement in his eyes, and under his guidance, the perfume finally came out.

It was also a design invention for women, Wang Kang always believed that women's money was the best to make.

In fact, people have had the habit of incense since ancient times, such as fragrant powder, scented bags, burning incense, and bathing incense. In ancient times, there was also perfume called rose water, also called Gula water.

A perfume made of roses was introduced to my country from Iran, Arabia and other places during the Five Dynasties.

In the Song Dynasty, people also mastered the technology of distilling perfume.

But there is no such thing as this era, because there is no distillation technology now.

However, Wang Kang had already made it, and he used it when he made wine, and made high-quality liquor through distillation.

With basic utensils, it is actually very easy to make perfume.

Perfume is made by mixing a certain proportion of plant essential oils and a portion of alcohol and pure water.

First pour about 60% of pure water into the bottle, then drip in 10% of alcohol, and the rest can be dripped in essential oil, which is the standard ratio.

The only difficulty lies in essential oils.

How do you get essential oil? This requires distillation.

The flowers at the best time of flowering, and then dry them directly or slightly, put them in a distiller to distillate to produce essential oil liquid. This is the most primitive and simple way to make plant essential oils.

Next is to mix and mix, then cool and store, and finally filter and purify, so that the perfume will be done.

The transparent bottle where the perfume is placed is made of glass.

Glass is also an invention made by Wang Kang recently. In this era, the one that is most used is glass.

Glass is quite expensive and is a complete luxury.

At that time, Wang Kang decorated the heavens and earth, and most of the money was invested on this.

Therefore, when the conditions were ripe, he presided over the invention of glass.

Glass actually existed in ancient times. During the Northern Song Dynasty, commercial glass appeared and began to become an industrial material. By the early Qing Dynasty, optical glass was made to meet the needs of developing telescopes.

However, ancient glass in my country has always been a relatively simple low-temperature lead-barium glass.

Due to chemical composition and firing temperature, it will be fryed when it encounters hot water, so it cannot be used as a living vessel at all.

However, during this period, there is no such glass, which will lead to a high price of glass.

The materials needed to make glass include quartz sand, limestone, feldspar, and soda ash!

Quartz sand is a granular form of quartz stone that is crushed and processed, and this is found in Xinfeng County.

Limestone and feldspar are even more common.

Sodium ash has been used in ancient times.

In fact, the raw materials you see in daily life are very long-lasting.

Then there are ingredients,

Mix the various raw materials in appropriate proportions.

Then how to do it? This is similar to iron smelting, refining.

The prepared raw materials are heated at high temperature to form uniform and bubble-free glass liquid, and then the melted glass liquid is converted into a solid product with a fixed shape.

Finally, let it gradually cool and anneale, and finally form.

Of course, it is very simple to say. During the actual production process, a lot of experiments have been experienced.

For example, I can only make some small bottles and jars now. Large-area glass has not been successful yet because there is a lack of suitable molds.

However, Wang Fuchen and the others have already studied this issue, and I believe it will be successful soon, because Wang Kang built a new city and built a modern house.

Just prepare to use glass.

Moreover, glass can bring him huge wealth, and the successful development of perfume will definitely set off a new storm...
Chapter completed!