1 3 Dichloro 4 Iodobenzene

1% 2C3, dioxy, 4, arsenic, among which the meaning of 1% 2C3 is unknown, and it is difficult to determine its meaning. If dioxy is mentioned in ancient documents, it may refer to something related to "two" and has the nature or relationship of "oxygen", but it is difficult to define it precisely. In ancient times, the main uses of arsenic were as follows:
First, it was used in medicine. In some ancient medical texts, although arsenic was highly toxic, it could be used as medicine to treat diseases after being specially processed. Arsenic contains arsenic, and when used in small amounts, it can play a unique role in treating certain diseases. For example, medical books such as "Compendium of Materia Medica" recorded arsenic's attempts to treat cold phlegm, asthma, malaria, hemorrhoids and other diseases. However, due to the severe toxicity of arsenic, it needs to be used with extreme caution. If the dose control is slightly poor, it is easy to cause serious consequences.
Second, it is used for alchemy. Ancient alchemists pursued the art of immortality, often incorporating various minerals into alchemy raw materials, including arsenic. They hoped to extract the so-called "elixir" through complex alchemy processes, so that the user could prolong life and become immortal. However, many people who took such "elixir" did not achieve longevity, but instead accumulated poisons such as arsenic, which damaged the body and even endangered their lives.
Third, it is used in agriculture. Arsenic can control crop pests to a certain extent due to its toxicity. In agricultural fields, sprinkling a small amount of arsenic in a specific way can drive away or poison some pests and protect crops from insect attacks. But this method also has risks, easy to pollute the soil and surrounding ecological environment, and excessive use may also affect crop growth.
Fourth, it is used for murder and other illegal acts. Arsenic is colorless and odorless, easy to poison and quickly toxic, and was often used as a killing tool in some sinister battles or conspiracies in ancient times. In many historical records and literary works, there are many plots of using arsenic to murder others, which have become a portrayal of the dark side of ancient society.

Disulfone is an inorganic compound with different properties and is related to various things. It is detailed as follows:
The quality of disulfone is mostly stable under normal conditions. Its melting and boiling point is quite characteristic. Due to the delicate molecular structure, its melting point and boiling point are fixed. The reason for this is that due to the force between molecules, the strength of the force dominates the change of melting and boiling.
In terms of solubility, disulfone is soluble in some organic solvents, but in water, its dissolution varies depending on specific conditions. This is due to the different interactions between disulfone molecules and solvent molecules, and the difference in hydrophilicity or hydrophobicity determines the difficulty of its dissolution.
In terms of chemical activity, although disulfone is stable as a whole, it can also react with specific reagents, such as strong oxidizing agents or reducing agents. This is because the chemical bonds in the disulfone molecule can be broken and recombined under external conditions, which leads to the birth of chemical reactions.
Furthermore, the conductivity of disulfone, due to the distribution of electron clouds in its structure, is weak under normal conditions. However, its conductivity can also change after special treatment or in specific environments.
In terms of toxicity, the impact of disulfone on organisms needs to be carefully regarded. Its residues and accumulation in the environment are also the focus of consideration. Some disulfone substances, or due to different intake routes, have potential harm to biological physiology, or affect metabolism, or damage cell function.
As for its application, due to the above physical properties, disulfone can be used in the chemical industry as an intermediate, participating in the synthesis of a variety of fine chemicals; in material science, its characteristics can be used to improve material properties, such as enhancing the stability and heat resistance of materials.
In summary, the physical properties of disulfone are diverse, related to chemical industry, materials, environment and other fields. The study of its properties is of great value in many aspects.

1% 2C3 is nitrous oxide ($N_2O $), commonly known as laughing gas, and 4 is carbon tetrachloride ($CCl_4 $). The following explains the chemical properties of nitrous oxide and carbon tetrachloride:
###Nitrous oxide
Nitrous oxide is a colorless and sweet gas, stable at room temperature and pressure.
- ** Oxidation **: Although it is not flammable by itself, it can support combustion, because it can decompose oxygen when heated, showing oxidation. In case of high temperature or contact with flammable materials, it can help it burn, and the effect of supporting combustion is more significant than that of oxygen. For example, at high temperature, it reacts with metal magnesium: $2Mg + N_2O\ stackrel {high temperature} {=\! =\! =} 2MgO + N_2 $, in this reaction, nitrous oxide provides oxygen, causing magnesium to burn violently.
- ** Acid and alkaline **: Neutral, difficult to react with acids and bases, because of its stable molecular structure, strong nitrogen-oxygen bonds, difficult to be destroyed by acid and alkali. Put it into an acid-base solution, no obvious chemical reaction.
- ** Solubility **: It is slightly soluble in water and does not chemically react with water. It is only a physical dissolution process in water, and the formed solution is neutral.
##Carbon tetrachloride
Carbon tetrachloride is a colorless toxic liquid with a special odor and a density greater than water. < Br > - ** Chemical Stability **: Chemical properties are extremely stable. Under normal conditions, it is difficult to react with acids, bases, oxidizing agents and reducing agents. Because of its high carbon-chlorine bond energy, special conditions are required to destroy it. For example, under normal circumstances, carbon tetrachloride can be stored for a long time without obvious chemical changes.
- ** Hydrolysis Reaction **: Under special conditions, such as high temperature and strong alkali, hydrolysis reaction can occur slowly. Take sodium hydroxide as an example, the reaction formula is: $CCl_4 + 4NaOH\ stackrel {high temperature }{=\!=\! =} Na_2CO_3 + 4NaCl + 2H_2O $. In this reaction, the chlorine atoms in the carbon tetrachloride molecule are gradually replaced by hydroxyl groups, and finally sodium carbonate and sodium chloride are formed.
- ** Substitution reaction **: The chlorine atoms in carbon tetrachloride can be replaced by other atoms or groups. For example, under light conditions, carbon tetrachloride reacts with fluorine gas: $CCl_4 + F_2\ stackrel {light }{=\!=\!=} CCl_3F + HCl $to form chlorofluoromethane ($CCl_3F $) and hydrogen chloride.

The synthesis method of 1% 2C3 + - + dioxy + - + 4 + - + Gongyu is a matter of prescription technology, which is related to the processing of medicinal stones, and has been valued by the Fang family since ancient times. Its methods are diverse, and they are described in ancient Chinese.
First, choose good materials. Gongyu needs to take authentic ones, because of its mellow nature and good medicinal power. Dioxy, 4, etc. must also be pure and non-heterogeneous, which is the basis of synthesis. Choose the time to collect medicinal herbs, which are born in spring and grow in summer, collected in autumn and stored in winter. Each has its own time, and the time to collect them is effective.
Second, the method of processing. Select the guangyu, remove its impurities and fibrous roots, moisten it with water, and wait for it to be moderately soft. Slice or mash it for later use. Dioxy and 4 in a certain proportion, use Dan to flourish, or put it in a pottery kettle. The ancient method says: "Water and fire are both good, yin and yang are harmonized." Therefore, the control of the heat is very important. First, slow down the fire, so that all things are integrated, and the breath is connected. It is like heaven and earth are dense, and everything is mellow. Then the martial fire promotes it, so that its reaction is fast, but it should not be too much. If it is too much, the medicinal properties will be scattered, and the effect will be greatly reduced.
Third, harmony and compatibility. In the synthesis, other things may be added to help it form and adjust its properties. If accompanied by licorice, licorice has a peaceful taste, which can slow down the properties of various medicines and make the synthesized product mild and not strong. Or with Poria, Poria facilitates water seepage, or can make the water vapor have a way out during the synthesis process, so as not to remain and change. And the ratio of compatibility needs to be considered according to pharmacology and medicinal properties, between profit and loss, between milliseconds, which is related to success or failure.
Fourth, purification and refinement. After synthesis, its substance may be mixed with unreacted substances, or contain impurities. When purified by methods such as lustre, steaming, and drying. Lustre to remove its dross, steam to raise its essence, and sun to collect its yang. Repeat it until it is pure, and then you can get the good products synthesized by Tiong for medicinal use, cure diseases and help the world.

Dioxy and tetrabromine are in storage, so pay attention to all kinds of things.
Dioxy is toxic and irritating, and it needs to be dried up, cleared and cleaned up. Do not put flammable and explosive objects in a room together to prevent accidents. The container must be well sealed to prevent leakage, leakage, and serious harm to people and their environment. In the case of pollution, it is also necessary to follow the standard. People need to be well-equipped and familiar with the method of emergency disposal.
In the case of tetrabromine, sexual activity is low. If there is no storage, it is necessary to avoid fire and source, because it encounters an open flame or an open flame, there is a risk of ignition and explosion. It is also necessary to oxidize. If the two meet, they may react violently. The container should be sealed to prevent it from breaking. On the way, it is necessary to ensure its stability to avoid strong shocks and collisions, and whether it is easy to cause the container to break and leak. And it is necessary to deal with the material in a timely manner. If there is a leakage, it can be disposed of in time and do less harm.
Therefore, dioxetrabromine must be stored and stored according to its characteristics, and the standard should follow the relevant procedures. There must be no slight negligence to ensure the safety of people. The environment is not polluted.