1-It is soft and fluid in nature, and can be fixed in shape. It can be easily dispersed under normal conditions. It avoids high temperatures and gathers when it is low. It can burn things, so that those who are dry can be nourished, and those who are dry. Its clear, always rising, when it is cold, it condenses and dew, frost, and snow.
2-Methyl ethyl ketone, which is a transparent liquid with high color, has a special fragrance. Its boiling temperature is low, easy to burn, and under normal conditions, it can be quickly dispersed. Combustible, in case of open flame and high temperature, it can ignite and explode. Its steam is heavier than air, and can be dispersed at a low temperature to a distance from each other. In case of fire source, it will ignite and backfire.
Methyl ethyl ketone is soluble in many forms, such as ethanol, ether, etc., and water can also form azeotropic mixtures. Because of its solubility, it is often used as a solution for synthesis. It is used in the fields of materials, inks, adhesives, etc., to help dissolve various lipids, polymers, etc., so that the product is more uniform and has better fluidity.
In addition, the chemical properties of methyl ethyl ketone are very active, and it can be used for multiplication. For example, the reaction can be ketogenic decomposition, and oxidation may lead to strong reactions. Therefore, it is necessary to be careful when using it, and follow the phase safety to prevent accidents.

Ethanol, commonly known as alcohol, is a common organic compound. Its chemical properties are unique and valuable for investigation.
First, ethanol is flammable. Under ignition conditions, ethanol can react violently with oxygen and release a lot of heat energy. The chemical equation of the reaction is: $C_ {2} H_ {5} OH + 3O_ {2}\ stackrel {ignited }{=\!=\!=} 2CO_ {2} + 3H_ {2} O $. Looking at this reaction, the flame is light blue, and the product is carbon dioxide and water, which is relatively clean, so ethanol can be used as fuel and has certain uses in the energy field.
Second, ethanol can replace with active metals. If metallic sodium is put into ethanol, bubbles can be seen to escape slowly. This is because the hydrogen atom in the ethanol hydroxyl group can be replaced by sodium. The chemical equation of the reaction is: $2C_ {2} H_ {5} OH + 2Na = 2C_ {2} H_ {5} ONa + H_ {2}\ uparrow $. This reaction is milder than the reaction between water and sodium, so it can be seen that the hydrogen atom in the ethanol hydroxyl group is less active than the hydrogen atom in water.
Third, ethanol can be oxidized and catalyzed. Under the condition of copper or silver catalyst and heating, ethanol can be oxidized to acetaldehyde by oxygen. The chemical equation of the reaction is: $2C_ {2} H_ {5} OH + O_ {2}\ underset {\ triangle} {\ overset {Cu or Ag }{=\!=\!=}} 2CH_ {3} CHO + 2H_ {2} O $. In this reaction, copper or silver participates in the reaction process, first oxidized by oxygen to copper oxide or silver oxide, and then oxidized by copper oxide or silver oxide to ethanol, and itself is reduced to copper or silver, so copper or silver is used as the catalyst.
Fourth, ethanol can undergo esterification reaction. When ethanol and acetic acid are heated with concentrated sulfuric acid as the catalyst, ethyl acetate and water can be formed. The chemical equation of the reaction is: $CH_ {3} COOH + C_ {2} H_ {5} OH\ underset {\ triangle} {\ overset {concentrated sulfuric acid }{=\!=\!=}} CH_ {3} COOC_ {2} H_ {5} + H_ {2} O $. This reaction is reversible. Concentrated sulfuric acid not only acts as a catalyst, but also acts as a water absorber to promote the reaction to form ethyl acetate. Ethyl acetate has a special fragrance and is widely used in food, fragrance and other industries.

According to "Tiangong Kaiwu", arsenic is the seedling of tin, and there is also lead in its habitat. The cover is mixed with lead, so the tin worker collects lead, which is often toxic. And methyl isobutyl ketone, its properties and uses, although "Tiangong Kaiwu" has not been mentioned, but according to today's chemical knowledge, methyl isobutyl ketone is mainly used as a medium boiling point solvent.
It is an indispensable solvent in the paint industry. Many coatings such as nitro paint, acrylic paint, etc., need to rely on the good solubility of methyl isobutyl ketone to evenly coat, forming a flat, smooth and high-performance paint film. In the field of ink manufacturing, it also plays an important role, which can adjust the drying speed and leveling of the ink, making the printing effect clearer and more exquisite.
In the adhesive industry, methyl isobutyl ketone helps to dissolve various resins, enhance the viscosity and stability of the adhesive, and improve its adhesion to different materials. At the same time, in some chemical reactions, because of its suitable boiling point and chemical stability, it is often selected as the reaction medium, providing a suitable environment for the reaction and promoting the smooth progress of the reaction. Although most of the records in "Tiangong Kaiwu" were traditional processes and products at that time, and did not involve modern chemicals such as methyl isobutyl ketone, today it is widely used and has far-reaching influence in many fields of industry.

To prepare a reagent for 1-ether-2-methylpropanol, the following methods are used:
First, a halogenated hydrocarbon interacts with sodium alcohol. For halogenated hydrocarbons, such as 2-halogen-1-methylpropane, sodium alcohol is selected. In a suitable solvent, such as anhydrous ethyl ether, the two are mixed. After nucleophilic substitution, the halogen atom is replaced by an alkoxy group, and 1-ether-2-methylpropanol can be obtained. This reaction condition is relatively mild, but the choice of halogenated hydrocarbons needs to be appropriate, and side reactions should be prevented during the reaction process, such as elimination of the reaction.
Second, an olefin and an alcohol are added under acid catalysis. Select 1-methylpropene and alcohol, and use strong acids such as sulfuric acid as catalysts. The double bonds of olefins are protonated under the action of acid to form carbon positive ions. The oxygen atoms of alcohols are nucleophilic, attack carbon positive ions, and then deprotonate to obtain the target product. The raw materials of this method are relatively easy to obtain, but it is necessary to pay attention to the concentration of acid and the reaction temperature to avoid over-reaction or other by-products, and the post-reaction treatment is more complicated, and the acid needs to be removed.
Third, through the Grignard reagent method. First, Grignard reagents containing 2-methylpropyl magnesium halide, such as 2-methylpropyl magnesium bromide, are prepared, and then react with aldodes or ketones. If reacted with formaldehyde, the carbon-magnesium bond of Grignard reagent has strong nucleophilicity, attacking the carbonyl carbon of formaldehyde, and 1-ether-2-methylpropanol can be obtained after hydrolysis. This method has high reactivity, but the preparation of Grignard reagent requires an anhydrous and oxygen-free environment, and the conditions are strict, and the post-reaction treatment also needs to be cautious.

1-Ether and 2-methyl isopropyl ketone have many wonderful uses in organic synthesis.
Ethers have unique properties and are often used as organic solvents. Their chemical properties are relatively stable, and in many organic reactions, they can provide an excellent dissolution environment for the reactants, so that the reaction can proceed more smoothly. For example, in the preparation and reaction of Grignard reagents, anhydrous ether is a very commonly used solvent. Because it can effectively dissolve halogenated hydrocarbons and magnesium chips, it promotes the smooth formation of Grignard reagents. And ether solvents do not chemically react with many reagents, which can ensure the stability of the reaction system.
Furthermore, ethers can also act as reaction intermediates in some special organic synthesis reactions. For example, in some nucleophilic substitution reactions, ether bonds can be broken under specific conditions, participating in the construction of new chemical bonds, which contributes to the construction of organic molecules.
As for 2-methyl isopropyl ketone, its molecular structure endows it with special reactivity. As a ketone compound, carbonyl is its active center. In the field of organic synthesis, it is often used in various reactions of carbonyl groups. For example, in the condensation reaction of hydroxyaldehyde, the carbonyl group of 2-methyl isopropyl ketone can react with aldol or ketone containing α-hydrogen to generate β-hydroxy ketones or α, β-unsaturated ketones, thereby increasing the carbon chain and enriching the structural types of organic molecules. At the same time, 2-methyl isopropyl ketone can also be used to construct heterocyclic compounds. Heterocyclic systems with biological activity or special physical and chemical properties can be skillfully synthesized by condensation with reagents containing heteroatoms such as nitrogen and oxygen, which has potential application value in the fields of medicinal chemistry and materials science.