Pyrazine, chloro-

The first density, the equipment used in the sea generation, is mostly based on special materials, and its density or common objects. Ancient books, the weapons used in the sea generation are thick in grip, but do not sink when entering the water. It seems that there is a secret method to its density, so that it can be used freely, and it has the ability to not sink.
Second word hardness, the armor used in the sea is very hard and often. History, the face of the crossbow and the arrow, the armor can resist more attacks and less damage. The materials used in this armor, thousands of tons, are integrated into the precious stone, so that its hardness is extraordinary, and it can be used in the world.
Furthermore, the toughness is also special. The stone used in the building where the sea is located also feels refreshing in the hot summer. The stone used in the building where the sea is located has good isolation performance. In winter, it can also keep the room warm, which seems to be able to reduce the room temperature. This stone may contain special substances, which can resist the intrusion of the outside world, and can also retain the room temperature.
In terms of performance, it is not difficult to use, but it is not easy to use. The flag used in its design seems to have the effect of lightning protection in case of thunderstorms. Or the flag material contains a certain material, which can lead to the flow of lightning, so that it does not affect the room and can be used skillfully.
The density, hardness, durability and durability of the sea all have different physical properties. Such properties help them create extraordinary properties in terms of life and life, and also leave a lot to be solved.

Mercury is a chemical element with the symbol Hg. It is liquid at room temperature and is the only liquid metal. It has many unique chemical properties.
Mercury has moderate chemical activity. Compared with some metals, its chemical properties are relatively stable, but it can participate in a variety of chemical reactions.
Mercury can react with oxygen. When heated, mercury combines with oxygen to form mercury oxide. This reaction shows that mercury can combine with non-metallic elemental substances.
The reaction of mercury with acids is quite special. Mercury can react with oxidizing acids such as concentrated sulfuric acid and concentrated nitric acid. Take concentrated nitric acid as an example, mercury reacts with it to form mercury nitrate, nitrogen dioxide, and water. However, mercury does not usually react with dilute hydrochloric acid and dilute sulfuric acid, because the metal activity of mercury is after hydrogen, and the hydrogen in the acid cannot be replaced.
Mercury can form an alloy with other metals, which is called an amalgam. Many metals can form amalgam with mercury, such as sodium amalgam, zinc amalgam, etc. The formation of amalgam often changes the properties of metals and is widely used in metallurgy and chemical industry.
Mercury compounds are also rich in chemical properties. For example, mercury chloride is an important mercury compound with strong oxidizing properties. Mercury sulfide is extremely stable and has a bright color. It was often used as a pigment in ancient times. < Br >
Although mercury has certain chemical stability, it can react with many substances under specific conditions, and plays an important role in the chemical field. However, many of its compounds are toxic and must be used with caution.

One of them is the cost of repairing the boat. The boat is the foundation of the boat's business. Boating on the water, wind and waves invade, water currents initialize, and the boat body is vulnerable. Therefore, it needs to be repaired with wood, tung oil, iron nails and other materials to make the boat strong and durable. This is the priority of maintaining the safety of the boat, and it is expensive.
The second is the daily needs of food and clothing. The boatman drifts on the water, and he also needs to meet his own food, clothing, housing and transportation. Clothing needs to cover the body to keep warm, and food needs to be full to support the body. Although there is no luxury demand, the daily needs of rice, vegetables, firewood, etc., accumulate over time, and it is also a lot of expenses.
The third is taxation fees. At that time, the government often levied taxes on all kinds of people, and it was difficult for the boatman to make an exception. Or levy taxes according to the size of the boat, the number of trips, or the amount of goods carried. And docking at various docks, you also need to pay a certain fee for pier maintenance.
The fourth is an emergency reserve. Boating on the water is unpredictable, and severe storms, reefs and dangerous beaches may cause damage to the boat. Therefore, the boatman needs to reserve money for emergency funds, in case the boat is suddenly damaged and needs urgent repairs, or in case of injury and illness, seek medical treatment.
In addition, if the boatman has a helper, he needs to pay the salary of the employee. Helping him operate the boat, load and unload goods, etc., his salary depends on the local market and the ability of the employees. In short, the main use of the Boat Duke of Han Dai covers many aspects such as boat repair, food, clothing, housing and transportation, taxation fees, emergency reserves and employee salaries. All expenses are related to his livelihood and the smooth survival of the boat.

There are many ancient methods for the synthesis of mercury instead of realgar. Although the method of synthesizing mercury instead of realgar is not detailed in "Tiangong Kaiwu", the relevant records in ancient books can be referred to.
In ancient alchemy, there are those who use realgar and mercury as the basis, and synthesize mercury instead of realgar through specific heat conditions and steps. For example, first select the realgar, pound it into powder, and place it in a special cauldron. This cauldron needs to have the ability to seal to prevent the drug from escaping. Then take an appropriate amount of mercury and pour it into the cauldron of realgar powder.
When heating, the heat control is the key. At the beginning, slow down the heat, so that the mercury and realgar powder are gradually fused, and observe its changes. Then gradually turn to martial fire, increase firepower, and make the medicine in the tripod react violently. During this process, alchemists must always pay attention to the situation in the tripod to prevent overheating from causing the drug to deteriorate.
There are also those who synthesize mercury-substituted realgar by the method of water flying. First, realgar and mercury are placed in water together, and repeatedly ground and stirred. During grinding, the two interact under the medium of water. The method of water flying can make the drug particles more delicate and uniform, and improve the quality of the composite. After grinding, let stand to precipitate, remove the supernatant, collect the bottom sediment, and then dry and other follow-up treatments to obtain mercury-substituted realgar.
There are also those who assist in the synthesis with pharmaceuticals. When realgar is mixed with mercury, a specific herbal juice or mineral agent is added. Such agents may catalyze reactions or adjust the properties of the compound. For example, some herbal juices contain special ingredients, which can promote the combination of mercury and realgar, make the synthesis process smoother, and affect the color and texture of the final product.

Those who are rulers of the sea, when using things, should be careful in all things. Now I say it in an ancient saying, I hope you will be warned.
First, use the device to make its nature clear. The things used by the ruler of the sea are all extraordinary, and each has its own ability. For example, if you are in a boat and know its suitability for water, you can resist the waves and chase the waves; if you are ignorant of the nature of things, you will be driven rashly, and the disaster of drowning people in the boat will not be far away. Therefore, when you use the things, you must first examine their quality, their use, and their taboos, and then you can use them well without error.
Second, when you use them, you should follow their rules. Everything has its rules, and the ruler of the sea cannot exceed them. If you cook, the heat is fixed, the ingredients are matched in an orderly manner, and you follow the rules, then the food can be made; if you follow the rules, even if there are precious ingredients, it will be difficult to make a good taste. Everything you use has laws, and if you follow them, you will go along, and if you go against them, you will be wrong.
Third, you should not ignore the things you take care of. After the things used by Haidaijun are used, you should take good care of them. If you use a sword, wipe it with oil, and hide it in a proper place, you can benefit for a long time; if the utensils are used without protection, they will be damaged for a long time, and when you use them again, the effect will be greatly reduced. Therefore, the way to take care of things is to use things.
Fourth, take care of things. Obtain things, or take effort, or consume wealth and silk. All the things used by the king of the sea are hard-won. One drop and one silk, we should think of the work of farmers and weavers; one utensil and one piece, we should think of the difficulties of craftsmen. If you cherish things and keep them, you will make the best use of them, and it will also show the virtue of the king of the sea.
Fifth, the things you hand over should be based on integrity. The things you hand over to others must be used in good faith. Or borrow or lease, and return them as scheduled, without damage. If you deceive people and lose their trust, it will be difficult to communicate with people in the future, and they will be despised by people.
When Haidaijun uses things, he has a detailed understanding of physical properties, follows the rules, is good at raising them, cherishes them without cost, and transfers integrity, then everything will go well, and the things used can also do their best, which is also the help of Haidaijun.