1 1 Difluoro 2 Iodoethane

The material of 1,1-dideuterium-2-chloroethane has the following characteristics. It is usually a transparent liquid under normal conditions, and smells like chloroform.
As far as the melting temperature is concerned, the melting temperature is low, -35 ° C. Under this temperature, the material is made of solid and liquid. The boiling temperature is 57 ° C. At this temperature, the liquid of 1,1-dideuterium-2-chloroethane will rapidly melt.
and density, the density of this compound is large in water, which is 1.17g/cm ³, so if the water is co-located, it will sink underwater. And it is soluble in water, because of the characteristics of its molecules, so that its water molecules can form a force interaction. However, it can be more soluble, such as ethanol, ether, acetone, etc. Mutually soluble, because it is soluble, it has similar molecular forces and characteristics, in line with the principle of similar dissolution.
In addition, the properties of 1,1-dideuterium-2-chloroethane are low, under normal conditions, it can be quickly dispersed from the liquid and dissipated in the air. This property makes it easy for the molecules to be bound by the liquid phase and enter the liquid phase. In addition, such physical properties have important implications for their application and deployment in multiple domains.

1,1-Dichloro-2-bromoethane is a halogenated hydrocarbon and has the following chemical properties:
First, hydrolysis reaction. When heated in an aqueous sodium hydroxide solution, the halogen atom can be replaced by a hydroxyl group, which is a nucleophilic substitution reaction. Such as:\ (ClCH_ {2} CHBrCl + 3NaOH\ xrightarrow {\ Delta} HOCH_ {2} CH (OH) Cl + 2NaCl + H_ {2} O\), in this reaction, because the electronegativity of the halogen atom is greater than that of carbon, the carbon-halogen bond is strong in polarity, and it is vulnerable to the attack of the nucleophilic reagent\ (OH ^ -\). The halogen atom leaves and the hydroxyl group is connected.
Second, the elimination reaction. When heated in a sodium hydroxide alcohol solution, the molecule will dehalide hydrogen to form unsaturated bonds. Take the elimination of a molecule of hydrogen halide as an example,\ (ClCH_ {2} CHBrCl + NaOH\ xrightarrow [] {alcohol,\ Delta} ClCH = CHCl + NaBr + H_ {2} O\), the reaction follows the Zaitsev rule, that is, when the halogenated hydrocarbon is eliminated, the hydrogen atom is mainly removed from the neighboring carbon atom with less hydrogen, resulting in an olefin with more substituents on the double-bonded carbon.
Third, react with metals. Can react with certain metals (such as magnesium) to form organometallic compounds. Like reacting with magnesium in anhydrous ether,\ (ClCH_ {2} CHBrCl + 2Mg\ xrightarrow [] {anhydrous ether} ClMgCH_ {2} CH (MgCl) Cl\), the resulting organomagnesium compounds are important reagents in organic synthesis and can participate in many reactions, such as reacting with carbonyl compounds to grow carbon chains.
Fourth, other situations of nucleophilic substitution reactions. In addition to being replaced by hydroxyl groups, it can also be replaced by other nucleophilic reagents. For example, in reaction with sodium cyanide, halogen atoms can be replaced by cyanide groups, which can then introduce functional groups such as carboxyl groups through subsequent reactions to expand molecular structure and function.

1,1-Dibromo-2-chloroethane is mainly used as an intermediate in organic synthesis, which can be used in the manufacture of pesticides, medicines, dyes, etc., and is also used as a solvent in industry. The following is described in the classical Chinese form of "Tiangong Kaiwu":
1,1-dibromo-2-chloroethane has a wide range of uses in this world. It is an important intermediate in organic synthesis and is widely used in agriculture, medicine and dyeing.
For farmers, it can be used to make pesticides. In today's crops, there are many pests. Pesticides prepared based on 1,1-dibromo-2-chloroethane can remove all kinds of pests, protect the strength of the crops, and ensure the abundance of grains, so that farmers can worry about insect disasters and enrich the grain.
For doctors, this substance can be involved in the synthesis of medicine. The wonders of medicine are related to people's livelihood. The medicine it helps can cure diseases and eliminate diseases, save people's lives, relieve the pain of common people, and add color to the apricot forest.
For dyers, it is also indispensable. It can help the color of the dye to be brighter and the quality to be more stable. In the dyeing workshop, the color of the fabric can not fade through the years, and it can be renewed through the wind and rain, so that the world can wear beautiful decorations.
And in industry, 1,1-dibromo-2-chloroethane is also often used as a solvent. Its mild nature can dissolve many substances, making the industrial process smoother, and the materials are blended evenly, which promotes the prosperity of industry.
From this point of view, although 1,1-dibromo-2-chloroethane is microscopic, it has great achievements in agriculture, medicine, industry, and dyeing in this world and cannot be ignored.

To make proparylene, calcium carbide (calcium carbide) can be used to react with water to obtain acetylene. This is a common method. Calcium carbide meets water and produces acetylene. The reaction formula is: $CaC_ {2} + 2H_ {2} O\ longrightarrow C_ {2} H_ {2}\ uparrow + Ca (OH) _ {2} $.
After acetylene is obtained, it can be added to hydrogen halide. First, it is added to one molecule of hydrogen chloride to produce vinyl chloride. The reaction conditions require a suitable catalyst, such as mercury chloride. Vinyl chloride is then added to another molecule of hydrogen halide to obtain 1,1-dihaloethane. If the hydrogen halide used is hydrogen chloride, 1,1-dichloroethane is obtained. This dihaloethane is heated in a strong alkali alcohol solution and undergoes a digestion reaction to obtain 1,1-dihalo-2-propane. For example, 1,1-dichloroethane is co-heated with a solution of sodium hydroxide alcohol. The reaction formula is: $CH_ {3} CCl_ {2} CH_ {3} + 2NaOH\ xrightarrow [] {alcohol,\ triangle} CH_ {3} C\ equiv CCH_ {3} + 2NaCl + 2H_ {2} O $.
Another way is to react acetylene with sodium metal to form sodium acetylene. Sodium acetylene reacts with halomethane to grow the carbon chain. For example, sodium acetylene reacts with chloromethane to obtain propane. The reaction formula is: $C_ {2} H_ {2} + 2Na\ longrightarrow C_ {2} Na_ {2} + H_ {2}\ uparrow $, $C_ {2} Na_ {2} + CH_ {3} Cl\ longrightarrow CH_ {3} C\ equiv CH + NaCl $. Then propane is added and eliminated with hydrogen halide according to the above method to obtain 1,1-dihalo-2-propane.
can start from acetone, first react with Grignard reagent to increase the carbon chain. After a series of reactions, such as dehydration, addition, elimination and other steps, the target product can also be reached. In short, the methods for synthesizing 1,1-dihalo-2-propane are various, each has its own advantages and disadvantages, and the practice should be carried out according to the actual situation.

1 - 2 - Storage and storage, the things that need to be paid attention to are complex, and need to be considered in many ways.
First, it is the control of the environment. 1 - 2 - Storage is native to a specific habitat, which is sensitive to climate change. If the temperature of the environment is high, it will accelerate the speed of water loss, and in severe cases, it may lead to heat stroke. On the contrary, if the temperature is low, it may enter hibernation, which is not a natural hibernation event, or cause irreversible damage to its health. Therefore, the environment should be maintained at an appropriate level, usually between 25 and 30 degrees Celsius.
Secondly, the control of the environment should not be ignored. 1-2 - Storage and storage are preferred in the environment. If it is stored and stored in the environment, it will be easy to crack the skin and armor, which will affect its anti-damage function and increase the risk of disease. Therefore, it is necessary to maintain a certain degree of stability. It can be maintained at about 60% to 80% by regular water or placement of raw materials.
Furthermore, the storage and storage containers also need to be investigated. The empty space of the container should not be small, which will limit the activity of the container and cause it to fail. However, it should not be large, so as not to be damaged due to shaking during the process. And the container needs to have good communication to ensure the circulation of the air and provide sufficient oxygen.
In addition, the water content of food is also very important. During the storage and aging period, it may or may not be sufficient, but it is still necessary to provide a small amount of water in the food. Food is suitable for those who are vegetarian and easy to digest. Moisture needs to be protected from pollution in order to maintain basic physiological needs.
Therefore, 1-2-2-3 storage and storage. It is necessary to carefully control the degree, temperature, and use a suitable container to properly supply water to food in order to maximize its health and safety.