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What are the main uses of 4,4,4-trifluoro-1-iodobutane?
4,4,4 - Sanjiang - 1 - The main use of fishing a turtle is for fishing gear. According to the records in "Tiangong Kaiwu", the use of fishing gear is appropriate for each. This turtle fisherman has the ability to lure fish into the hook in fishing.
Ancient fishermen often relied on all kinds of fishing gear to catch fresh fish. Fishing a turtle has a unique shape and its main use is to use its special structure to lure fish. When the fisherman puts a turtle in the water, the bait is fragrant and attracts the fish to approach. When the fish are lured for food and swallow the bait, it is made for fishing a turtle.
On the banks of rivers, lakes and seas, fishermen hold a turtle in their hands, waiting for the fish to follow. Or when the mist has not lifted in the morning, or when the sun shines in the evening, they can be seen. The design of fishing a turtle is not only to catch fish, but also to make a living for fishermen.
Its use is not only in ordinary waters, even in fast-flowing waters and complex fish conditions, if fishermen make good use of fishing a turtle, they can also harvest something. And the use of fishing a turtle requires fishermen to master exquisite skills. When to bait and when to fish, they all pay attention to it.
is the main use of 4,4,4-Sanjiang-1-fishing a turtle, which is actually an important fishing gear for fishermen to lure fish into the hook and help them catch fresh fish to maintain their livelihood and enrich their diet.
What are the physical properties of 4,4,4-trifluoro-1-iodobutane?
4,4,4-trifluoro-1-iodobutane is an organic compound with the following physical properties:
Looking at its properties, at room temperature and pressure, 4,4,4-trifluoro-1-iodobutane is a colorless to pale yellow liquid, clear and transparent, without visible impurities. This state is similar to many halogenated alkane hydrocarbons, which are often exhibited as liquids at room temperature and pressure due to the characteristics of intermolecular forces.
The boiling point is about 110-112 ° C. The boiling point is controlled by the intermolecular force. In this compound, the presence of fluorine and iodine atoms increases the intermolecular dipole-dipole force due to the high electronegativity of fluorine and iodine atoms. Compared with alkanes with the same number of carbon atoms, the boiling point is significantly increased.
Its melting point is usually in a relatively low temperature range, but the exact value varies depending on the precise experimental conditions. The low melting point is related to the flexibility of the alkyl chain in the molecular structure and the distribution of halogen atoms. The alkyl chain gives the molecule a certain flexibility, hinders the regular arrangement of molecules, and reduces the lattice energy, so the melting point is not high.
In terms of density, it is greater than the density of water, about 1.85g/cm ³. Due to the large relative atomic weight of fluorine and iodine atoms, they account for a large proportion in the molecule, which increases the mass of the substance per unit volume and results in a higher density, which is consistent with the characteristics that the density of most halogenated hydrocarbons is greater than that of water.
In terms of solubility, 4,4,4-trifluoro-1-iodobutane is insoluble in water. Because its molecules are polar molecules, but water is a strong polar solvent. According to the principle of "similar phase solubility", the force between the compound and the water molecule is difficult to resist the hydrogen bond between the water molecules, so it is difficult to dissolve. However, in organic solvents such as ethanol, ether, and acetone, it exhibits good solubility due to the adaptation of the force between the organic solvent molecules.
In addition, 4,4,4-trifluoro-1-iodobutane is volatile and will slowly evaporate into the air in an open environment. And its vapor is heavier than air and easy to accumulate at lower levels.
What are the chemical properties of 4,4,4-trifluoro-1-iodobutane?
4,4,4-trifluoro-1-iodobutane, which has strange physical properties and has the properties of halogenated alkanes. At room temperature, it is a colorless to slightly yellow transparent liquid. It looks like water, but its properties are very different from water.
In terms of its boiling point, it is about 100-105 ° C. Because of the existence of fluorine and iodine atoms in the molecule, its boiling point is different from that of ordinary alkanes. Fluorine atoms have strong electronegativity, resulting in a certain polarity between molecules; iodine atoms have a large radius and increase the intermolecular dispersion force. The combination of the two makes the boiling point have such a value.
Its density is greater than that of water, about 1.8-1.9g/cm ³. Due to the large relative atomic weight of fluorine and iodine atoms, more masses are cohesive in a limited molecular space, resulting in increased density.
In terms of solubility, 4,4,4-trifluoro-1-iodobutane is insoluble in water. Water is a highly polar solvent, and the overall polarity of this substance is not particularly strong due to the distribution of fluorine and iodine atoms. According to the principle of "similar miscibility", it is difficult to dissolve in water. However, it is soluble in many organic solvents, such as ether, carbon tetrachloride, chloroform, etc. In ether, the intermolecular forces between the two molecules are adapted and can be mixed evenly.
In terms of chemical activity, the iodine atom is its activity check point. Because the iodine-carbon bond energy is relatively low, it is easy to break. When encountering nucleophiles, iodine atoms are easily replaced. If reacted with sodium alcohol, corresponding ether compounds can be generated; reacted with sodium cyanide, products containing cyanide groups can be obtained. And due to the electron-absorbing effect of three fluorine atoms, the electron cloud density of carbon atoms connected to iodine is reduced, and the activity of iodine atoms is increased, so that substitution reactions are more likely to occur.
What is the preparation method of 4,4,4-trifluoro-1-iodobutane?
To prepare a 4%, 4%, 4-triene-1-alcohol monoketone drug, the method is as follows:
First take the raw materials of good quality, according to the ancient method, carefully selected to ensure purity and no impurities. According to the method of herbal medicine, the raw materials are either collected from deep mountain spiritual lands, or taken from rare plants.
In a clean kettle, fry the raw materials at a moderate heat. The size of the fire is crucial. If it is too fierce, the raw materials will be burnt and the medicinal power will be damaged; if it is too weak, it will not stimulate its properties. Watch its color change, and wait until it is just the right color to stop roasting.
Then soak it in a clear spring. The quality of water also affects the efficacy of the medicine. Choose a sweet and pure spring, soak the raw materials for a day, and add stirring during this time to fully blend the raw materials with the water and leach out the essence.
After soaking, drain the liquid and remove the residue. Put the resulting liquid in a special vessel and distill it over slow heat. When distilling, pay attention to the change of heat and steam, so that the active ingredients in the liquid are slowly precipitated and condensed in other vessels.
After that, take the essence obtained by distillation and add the auxiliary agent according to the delicate ratio. The auxiliary agent, either as herbal powder or as a secret liquid, is made according to the ancient recipe and must not be wrong. Harmonize evenly, so that they can gain each other, and the medicinal properties are seamless.
The medicament made should be properly stored in a cool and dry place, and should not be heated by light, so as to ensure that its medicinal power is not lost for a long time. In this way, a good agent of 4%, 4%, 4-triene-1-alcohol monoketone can be obtained.
What should be paid attention to when storing and transporting 4,4,4-trifluoro-1-iodobutane?
4,4,4 - Sanjiang - 1 - Question 1 What should a wolf pay attention to when storing and transporting? This question concerns the main points of attention during the storage and transportation of wolves. The following is an ancient saying:
When storing, the first thing to do is to check the place where you are located. You must find a dry and sheltered place to prevent moisture erosion and damage the quality of the wolf. If placed in a humid place, the wolf is perishable and loses its effectiveness. Furthermore, the storage device should not be ignored. When stored in a sturdy and airtight device, it will prevent insects and ants from biting, and also prevent odor intrusion, to protect the original smell of the wolf.
As for the time of transportation, first observe the state of the wolf. If the wolf is ill, it should not be forcibly transported, in case it gets sick on the way and gives up all its efforts. The way of transportation should be smooth. The road is bumpy, which makes it easy for the wolf to be traumatized. And on the way, you must pay attention to the weather. In case of extreme heat and cold, you should have corresponding measures. In the heat, you should try to cool down to prevent the wolf from suffering from heat; in the severe cold, you need to keep warm to avoid frostbite. Furthermore, the escort should also be cautious. He should be familiar with the habits of wolves, so as to prevent the wolf from fleeing in fear during transportation and endangering the safety of everyone. In this way, the storage and transportation of wolves can be comprehensive without damaging their quality and use.
