5-BROMOTHIOPHENE-2-SULPHONYL CHLORIDE

Those who are good at water are the genus of strong acids, and their main uses are complex and useful in various fields.
In the field of metallurgy, good water can be used for the refining of ores. In the cover ore, metal elements often coexist with other things. Leaching it with good water can dissolve metal elements, and then through subsequent processes, pure metals can be obtained. If you want to get copper, you can co-locate the copper-containing ore with good water, and then dissolve the copper into the solution, and then use an appropriate method to precipitate the copper from the solution. This is crucial for metal smelting, which can greatly improve the purity and yield of metals.
In chemical manufacturing, good water is an important raw material. The synthesis of many chemical products depends on the participation of good water in the reaction. Taking fertilizer production as an example, the production process of some fertilizers containing nitrogen and phosphorus requires good water to react with other substances to generate the required compounds and provide essential nutrients for crop growth. In the pharmaceutical industry, the synthesis steps of some drugs also involve good water to help them build specific chemical structures for medicinal purposes.
In the etching process, good water is also indispensable. When etching patterns or text on the metal surface, first cover the unwanted etching with acid-resistant materials, and then apply good water to the metal surface. It reacts with the uncovered part of the metal to etch the metal, leaving the desired pattern or text. This technique is often used in the manufacture of printed circuit boards to precisely control the degree and range of etching of good water, which can make the circuit layout on the circuit board accurate and ensure the normal operation of electronic equipment.
However, good water is highly corrosive. When using it, be sure to be careful and follow strict operating procedures to prevent injury and damage.

Its external surface is often white solid, such as multi-layer, sheet, grain or rod, etc. This shape is easy to use. Absorbency, placed in the air, can quickly absorb water vapor and deliquescence. Like a thirsty thing that is dry and thirsty at one degree, it absorbs immediately in contact with water. This property makes it suitable for some dry and dry conditions.
In terms of solubility, it is easily soluble in water, and the dissolved solution releases a large amount of energy. When it is put into water, it is like the strong reaction of water, boiling water, and the amount released in this process should not be small. Special attention should be paid to the use of water to prevent burning. However, it can also be dissolved in ethanol, glycerol, etc., exhibiting good solubility in different solutions.

The boiling temperature is high, the melting temperature is 318.4 ° C, and the boiling temperature is 1390 ° C. Such a high boiling temperature shows that it has a high degree of quality, and a high degree of phase is required to make it change. It can exist under normal conditions.

The density is 2.130 g/cm ³, and the phase density is large. It feels heavy when held in the hand. Compared with ordinary materials, its weight is heavier under the same conditions.
In addition, there are some physical properties, so that it has important uses in chemical industry, manufacturing, printing and dyeing, etc. However, due to its durability and dissolution properties, the use of storage materials must follow a grid to ensure safety.

To make a 5% solution of 2% sulfuric acid, the method is as follows:
First of all, sulfuric acid is also required. To obtain a 5% solution, the amount of sulfuric acid is required to be dissolved in water. To obtain a certain amount of this solution, if you want a 5% solution of 1000 grams, the calculation method is: The amount of the solution is 1000 grams, and the proportion of sulfuric acid is 5%. Therefore, the amount of sulfuric acid is 1000 grams × 5% = 50 grams, and the amount of water is 1000 grams - 50 grams = 950 grams. Take 50 grams of sulfuric acid, slowly add 950 grams of water, mix with a glass rod, until the sulfuric acid is completely dissolved, and a 5% solution is obtained.
The next described solution of sulfuric acid. To obtain a 2% solution of sulfuric acid, it is also desirable to add 1000 grams of this solution. Calculation can be obtained, the amount of sulfuric acid is 1000 grams × 2% = 20 grams, and the amount of water is 1000 grams - 20 grams = 980 grams. Take 20 grams of sulfuric acid, place it in 980 grams of water, and mix with a glass rod. When it is completely dissolved, a 2% sulfuric acid solution is completed.
If you want to combine the two, first prepare a 5% solution of 2% sulfuric acid solution, according to the required amount, in a clear container, and then mix well, so that the two are mixed together, and then 5% 2% sulfuric acid is obtained. Make a mistake, pay attention to the cleaning of the utensils used, and the amount of the product and the amount of the solution are refined, so that the required combination can be obtained.

Mercury is a highly toxic substance, especially its vapor. Sulfur can be combined with mercury to form non-toxic mercury sulfide, which is often used as an antidote to mercury toxicity. In the storage and transportation of mercury, many matters must not be ignored.
When storing mercury, a sturdy and airtight device must be used to prevent leakage. Because of its heavy weight and easy flow, it is easy to escape if there is a slight gap. The material of the device is preferably thick-walled glass or metal, but the metal also needs to be protected from mercury corrosion. And the storage place of mercury should be cool, dry and well ventilated, protected from heat and direct sunlight, because heat can increase the vapor pressure of mercury and accelerate volatilization.
When transporting mercury, the first priority is safety. First make sure that the mercury is contained in a special container, and the container is wrapped with protective materials, such as thick cotton, rubber, etc., to cushion the impact. During transportation, keep moving slowly to avoid violent vibrations and collisions, and prevent mercury leakage due to damage to the container. If the transportation volume is large, it is advisable to prepare emergency treatment items, such as sulfur powder. Once the mercury leaks, quickly sprinkle sulfur to dissolve it.
Furthermore, those engaged in the storage and transportation of mercury should have protective awareness and equipment. Wear protective clothing, gloves and gas masks to prevent mercury from contacting the skin and inhaling steam. After work, you must clean and change clothes to prevent mercury from carrying out and causing pollution to spread.
In short, the storage and transportation of mercury is related to human life and the environment, and everything must be done with caution and in accordance with regulations to ensure safety.

In the Guanfu market, the price of nitrate varies from time to time and place, making it difficult to determine the exact number.
It is roughly the genus of nitrate, which is related to military fireworks. Its production and sale are often regulated by officials and families, and it is not unusual for goods to be colonized. In times of peace, there is no police of beacons and fire, and the military demand is slightly delayed, and its price may be flat. However, if there is a disturbance in the side and war is about to start, the demand for nitrate will increase sharply, and the price will also be expensive.
According to various ancient books and past news, in ordinary years, the price of saltpeter per catty is about dozens to hundreds of words. If the quality is high, or the origin is rare and expensive, the price may be even higher. The price of sulphur is similar, but due to the differences in the production of sulphur and the quality, its price may vary. In prosperous cities, merchants converge, and the circulation of goods is convenient, and the price may be slightly flat; while in remote places, transshipment is difficult, and the price is high.
And the price of nitrate is also affected by the weather. In case of natural disasters, all industries are damaged, the production and transportation of nitrate are not smooth, and the price fluctuates. The method of making nitrate sulphur has been innovated from time to time. If the new method comes out, the efficiency will be increased, and the price may change accordingly.
Therefore, if you want to know the market price of nitrate sulphur, you must carefully observe the military and political affairs, geographical conditions, and various things in the weather at that time, so that you can obtain its approximation. It cannot be generalized.