5-bromopyridine-3-sulfonyl chloride hydrochloride

5% fenvalerate - 3% cyfluthrin emulsifiable concentrate, is a kind of pesticide preparation. Among them, fenvalerate and cyfluthrin are both pyrethroid insecticides. The two are compatible to achieve the ability to increase the efficiency of insecticides.
Fenvalerate, colorless crystalline or light yellow transparent oily liquid, melting point 59.0 - 60.2 ℃, boiling point 222 - 224 ℃ (1.33Pa). Insoluble in water, soluble in xylene, chloroform, acetone, ether, methanol and other organic solvents. It can be stored at room temperature for 2 years, 50 ℃ can be stored for 3 months.
Cyfluthrin, pure white solid, melting point 49.2 ° C, boiling point 187 - 190 ° C/0.2mmHg, vapor pressure about 0.001mPa (25 ° C). The solubility in water at 20 ° C is 1 ppm, in acetone, acetonitrile, chloroform, cyclohexanone, dichloromethane, methanol, toluene are greater than 500g/L. Store at room temperature for at least 2 years, 50 ° C can be stored for 3 months.
5% fenvalerate - 3% cyfluthrin emulsion, the appearance is usually light brown transparent liquid, specific gravity 0.9 - 1.1, flash point above 36 ° C. Its emulsion stability, low temperature stability, thermal storage stability and other physical and chemical properties must meet relevant standards. The emulsion stability requires dilution 200 times with 342mg/L hard water, and the emulsion is uniform milky white within 30 minutes, without oil slick, sunken oil, and precipitation. Low temperature stability, stored at 0 ° C ± 2 ° C for 7 days, no crystallization, no precipitation. Heat storage stability, stored at 54 ° C ± 2 ° C for 14 days, the content of active ingredients changes within the allowable range, and various performance indicators can still meet Quality Standards. Due to the characteristics and compatibility of two active ingredients, this emulsifiable concentrate has the effect of contact and stomach poison, and has a wide insecticidal spectrum. It can deal with a variety of pests and is widely used in the field of agricultural pest control.

To prepare antimony pentachloride and antimony trichloride and compounds of hydrochloric acid and chloric acid, the method is as follows:
To prepare antimony pentachloride, antimony can be fully reacted with excess chlorine. Take pure antimony first, put it in a special reaction vessel, and pour dry and sufficient chlorine gas. Because chlorine is highly oxidizing, antimony burns violently in chlorine gas, and reacts: $2Sb + 5Cl_ {2}\ stackrel {ignited }{=\!=\!=} 2SbCl_ {5} $, and antimony pentachloride can be obtained through this reaction. Pay attention to the dry reaction environment, otherwise antimony pentachloride is easy to hydrolyze.
To make antimony trichloride, antimony can react with an appropriate amount of chlorine gas, or react with antimony and hydrochloric acid. If chlorine is used, take antimony into a suitable device, add an appropriate amount of chlorine, and the reaction is as follows: $2Sb + 3Cl_ {2}\ stackrel {ignited }{=\!=\!=} 2SbCl_ {3} $. If hydrochloric acid is used as a raw material, antimony is added to hydrochloric acid, and a displacement reaction occurs: $2Sb + 6HCl = 2SbCl_ {3} + 3H_ {2}\ uparrow $, but this reaction is relatively slow.
To produce hydrochloric acid, hydrogen is often reacted with chlorine to form hydrogen chloride, and then hydrogen chloride is dissolved in water to obtain hydrochloric acid. Make hydrogen burn quietly in chlorine, and the reaction is: $H_ {2} + {2}\ stackrel {ignited }{=\!=\! =} 2HCl $, the generated hydrogen chloride gas is introduced into the water to obtain a hydrochloric acid solution.
As for chloric acid, indirect methods are generally used in the laboratory to prepare it. If potassium chlorate is first reacted with concentrated sulfuric acid to generate chloric acid and potassium sulfate, the reaction formula is: $2KClO_ {3} + H_ {2} SO_ {4} (concentrated) \ stackrel {\ Delta }{=\!=\!=} 2HClO_ {3} + K_ {2} SO_ {4} $, but chloric acid is unstable and easily decomposed by heat. The preparation process needs to be carefully operated and the reaction conditions should be controlled.

The five-glass boron is very different in nature and is widely used. As for the nitric acid of trinitrate hydrochloride, its use is also considerable.
The nitric acid of trinitrate hydrochloride is quite useful in the field of soldiers and soldiers. In the past, there were still frequent wars, and the manufacture of firearms depended on it. Nitrate is the essential agent of gunpowder, which can help ignition and greatly increase the power of firearms. Hydrochloric acid and nitric acid can also be used for making projectiles and alchemy, to strengthen the quality of weapons.
In the world of medicine, it also has its own merits. Nitric acid can be used to make medical drugs to treat various diseases. Hydrochloric acid can help regulate acid and base in the body, which is beneficial for digestion. The combination of the two is helpful for medicine.
Furthermore, in the place where the workshop is cast, nitric acid trinitrate hydrochloride is also indispensable. Nitric acid can erode metals in order to carve and shape them into beautiful tools. Hydrochloric acid can remove rust, make the metal smooth, and make the casting tool stronger.
In the realm of research in the academy, this number is a resource for exploring physical properties and transformation. Students use this to understand the properties of matter, understand the principles of change, and advance academically, which helps a lot.
From this perspective, trinitrate hydrochloric acid nitric acid is used in military, medicine, workshops, academia and many other fields, and is an important treasure in the world.

In today's well-being, everyone wants to know the quality of borax and borax. However, the quality of these two types is often due to the same reasons.
First of all, borax, its use, in industrial matters, glass and ceramics are indispensable. Its floatation is a matter of lack of sources. If there is a lot of wealth in the store, it will be profitable to dig, and the amount of money entering the market will be large, and the price will be flat, and even decline; if the source is scarce, it will be excavated, and the supply will not be demanded, and the price will rise. Again, the needs of the market will also be due to. If the industry is prosperous, the demand for borax will increase greatly, and the price will also be higher; on the contrary, if the industry is good, the demand will be less, and the price will drop.
When it comes to acid production, it is also used in chemical, chemical, and other industries. The first thing to determine is the cost of raw materials. If the price rises, the cost of acid production will increase, and the market price will also be high; if the price decreases, the cost will also be lower. And the cost of production also has an impact. If the new generation is new, it can increase the quantity, cost, or reduce; if the production is blocked, the number of steps, or the following line.
Near the price, the price of borax, because the source is slightly reduced, the demand is not yet reduced, and the cost per catty is less than 10% to 100%. And acid, due to the small size of raw materials, the size of raw materials is also large, and the size of each catty is roughly around 10%, and there is a slight fluctuation due to the size of the situation. The market and business are all in good condition, so as to make big profits due to the profit.

5% fenvalerate-3% cyfluthrin emulsifiable concentrate is a commonly used insecticide in agriculture. Its storage conditions are quite critical, which is related to the efficacy and safety of the drug. The following is an ancient saying:
This agent should be stored in a cool, dry and well-ventilated place. Those who are cool can avoid the scorching sun. Due to sunlight exposure, it is easy to cause the components of the agent to decompose and damage its insecticidal effect. If exposed to the hot sun, the temperature is too high, the chemical reaction inside the agent accelerates, and the active ingredients evaporate and dissipate, it may be difficult to achieve the expected deworming effect when used.
Dry environment is also indispensable. Moisture can easily cause the agent to deliquescent, causing its properties to change. In case of continuous rain, the air humidity increases greatly. If the agent is not properly protected, it will absorb too much water vapor, or it will agglomerate and deteriorate, which will not only affect the use, but also reduce the efficacy of the agent. In severe cases, it may cause the agent to fail.
Well ventilated can disperse harmful gases that may be generated. The agent itself may evaporate some odors and accumulate in closed spaces. On the one hand, it may endanger the surrounding organisms of the storage environment. On the other hand, it may cause safety hazards due to high gas concentration. In case of open fire or risk of explosion.
Furthermore, the storage of this agent should be kept away from fire sources, heat sources and within the reach of children. If the fire source and heat source are close, it is easy to cause dangerous reactions of the agent due to sudden temperature rise, causing fire or even explosion. And children are ignorant, if they come into contact with this toxic agent, accidentally ingest or contaminate their skin and eyes, it will cause serious harm to their bodies.
And should be stored separately from food, beverages, feed and other items to prevent contamination. This agent is toxic. If it coexists with food and drink, once it leaks or the packaging is damaged, it is very likely to be mixed into food, beverages, and feed, and people or animals will eat it by mistake, and the consequences will be unimaginable.