Mercury is a liquid metal at room temperature. Its color is silver-white and its texture is smooth, like flowing silver. It has a metallic luster and shines brightly. In nature, mercury also has a gaseous form. The density of mercury is quite high, far exceeding that of common water, which can reach 13.6 grams per cubic centimeter. This property makes it immediately sink to the bottom when placed in water. The melting point of mercury is extremely low, minus 38.87 degrees Celsius, so it is liquid at room temperature; its boiling point is also not very high, 356.6 degrees Celsius. When heated, it evaporates into mercury vapor, which is colorless and odorless, but highly toxic.
Water, the source of life, is a colorless, odorless and transparent liquid. Its density is one gram per cubic centimeter, under standard atmospheric pressure, the melting point is zero degrees Celsius, and the boiling point is one hundred degrees Celsius. Water has good solubility, and many substances can be dissolved in it, such as salts, sugars, etc. This property makes water an excellent solvent, which is widely used in life activities and chemical experiments. The specific heat capacity of water is extremely large, which is 4.2 times ten cubic joules per kilogram Celsius, which means that the temperature of each kilogram of water rises or decreases by one degree Celsius. So much heat needs to be absorbed or released, because water has an extraordinary effect on regulating the climate and stabilizing the temperature in living organisms.
Ethanol, commonly known as alcohol, is a colorless and transparent liquid with a special fragrance and is volatile. Its density is less than that of water, about 0.79 grams per cubic centimeter. Ethanol has a melting point of minus 114.1 degrees Celsius and a boiling point of 78.3 degrees Celsius. Ethanol and water are mutually soluble in any ratio, and it is also an excellent organic solvent in which many organic compounds can be dissolved. Ethanol is flammable, and when burned, it generates carbon dioxide and water, and at the same time releases a large amount of heat. Its chemical equation is: C _ H _ OH + 3O _ 2 $\ stackrel {ignited }{=\!=\!=}$ 2CO _ 2 + 3H _ 2 _ O, often used as fuel.

The chemical properties of mercury, bromine, ethanol, and acetoxybenzene are as follows:
Mercury is a liquid metal at room temperature, with a dazzling silver light. Its density is quite high and its chemical properties are relatively stable. However, it can react with strong oxidants such as concentrated nitric acid and concentrated sulfuric acid to form mercury salts. Mercury is volatile and its vapor is highly toxic. If inhaled inadvertently, it can damage the human nervous system, kidneys and many other organs. In room temperature air, mercury will also evaporate slowly, forming mercury vapor, so it needs to be properly stored and not exposed to air.
Bromine is a liquid non-metallic elemental substance, which is dark reddish-brown and has a strong pungent odor. Bromine is chemically active and can react with many metals and non-metals. If it meets sodium metal, it reacts violently to form sodium bromide; it can also react with hydrogen under heating or light conditions to form hydrogen bromide. Bromine is easily soluble in organic solvents, such as carbon tetrachloride, benzene, etc., and presents different colors in organic solvents. It is often extracted and separated by this property.
Ethanol, commonly known as alcohol, is a colorless and transparent liquid with a special fragrance. It can be miscible with water in any ratio and can also dissolve many organic substances. Ethanol is flammable and burns in air to generate carbon dioxide and water. It is one of the commonly used fuels. Ethanol can undergo a substitution reaction, such as heating with acetic acid to form ethyl acetate and water under the catalysis of concentrated sulfuric acid; it can also undergo an oxidation reaction. Under the catalysis of copper or silver, it can be oxidized by oxygen to acetaldehyde, and further oxidized to form acetic acid.
Acetoxybenzene, also known as phenyl acetate, has the general property of esters. Hydrolysis can occur under acidic or alkaline conditions. Hydrolysis under acidic conditions produces acetic acid and phenol; hydrolysis under alkaline conditions is more thorough, generating acetate and phenol salts. Due to its phenyl ring structure, substitution reactions on the phenyl ring can occur, such as halogenation, nitrification, etc., and because the acetoxy group is an ortho and para-site group, the substitution reaction mostly occurs in the ortho and para-site of the phenyl ring.

Mercury is very toxic, and has been used for centuries and ages. Occasionally, those who seek longevity on the Pill Dao, or are involved in this thing, cause harm to their bodies and lives, and disaster occurs frequently. And it escapes between heaven and earth, sewage and soil, harming life, and causing great trouble in the world. Avoid it and keep it away. Don't let it get close.
Rivers are the source of life, nourishing all things. Ships rely on navigation, business travel is endless, goods converge, rivers reach the sea, and trade is prosperous. Irrigated farmland, crops are prosperous, warehouses are abundant, and people have no worries about food. Both sides of the strait are also places where settlements thrive, humanities multiply, and cities rise. Rivers are rushing, nurturing civilization, which is really the blood of the earth, and should not be ignored for thousands of generations.
Methyl hydroxyl silicone oil has a wide range of uses. In mechanical appliances, it can moisturize its parts, reduce friction and noise, increase its lifespan, and ensure smooth operation. In the construction field, it can be waterproof and impermeable, protect masonry and civil engineering, withstand wind and rain erosion, and solidify the foundation of buildings. In the textile industry, it can soften fabrics, increase their luster, feel comfortable to touch, and improve quality. In electronic devices, it can dissipate heat and insulation, ensure their stable operation, and prevent electrical failures. These are all common uses, benefit people's livelihood, and promote the progress of all industries.

Mercury is a chemical substance. It is a liquid metal that flows in a silvery state at room temperature. It was also known as "mercury" in ancient times. Rivers are where water flows converge, galloping and moisturizing the earth. The synthesis of methyl hydroxybenzene is related to chemical skills. There are many methods, let me come one by one.
First, benzene can be used as the starting material. First, benzene and halogenated hydrocarbons are alkylated by Fu-g with the help of a catalyst to obtain alkylbenzene. Then, alkylbenzene can be oxidized to form corresponding carboxylic acids. Then the carboxylic acid and alcohol are catalyzed by an acid to perform an esterification reaction to obtain esters. Esters react with methylating reagents under specific conditions, and methyl groups can be introduced. Finally, through a series of steps such as hydrolysis, methyl hydroxybenzene can be obtained. In this process, the reaction conditions of each step are quite critical, and the choice of temperature and catalyst affects the yield and purity of the product.
Second, phenols are used as raw materials. Phenolic compounds have active hydroxyl groups, which can be nucleophilic substitution with halogenated methane under basic conditions to introduce methyl groups. Subsequently, through suitable oxidation and functional group conversion steps, the purpose of synthesizing methyl hydroxybenzene can also be achieved. In this method, the control of alkaline conditions and the selection of oxidation reagents need to be carefully considered to avoid the risk of over-oxidation or insufficient reaction.
Third, it can also be modified after extraction of natural products. Some plants or microorganisms contain compounds with similar structures. After separation and purification, their structures can be modified by chemical means, and methyl hydroxybenzene can be successfully synthesized. Although this approach relies on natural resources, it is also a feasible method if it can be used well. However, the extraction of natural products is often difficult, and the content may be low, requiring efficient separation technology.
Although there are many methods for synthesis, in practical application, it is necessary to choose the best one according to the availability of raw materials, cost considerations, environmental impact and many other factors. The path of chemical synthesis, such as exploring the path, step by step with caution, can achieve the desired goal.

Mercury, river, ethanol, and aminobenzoic acid are all commonly used in the chemical industry. When storing and transporting, many matters need to be paid attention to to to ensure safety.
Mercury is a liquid metal with high toxicity and volatility. When storing, place it in a sealed container to prevent mercury vapor from escaping, polluting the environment, and endangering the human body. The selected container must be resistant to mercury corrosion, and the storage place should be cool, dry, and away from fire and heat sources. Mercury is volatile due to heat. When transporting, make sure that the packaging is tight, there are leak prevention measures, and relevant hazardous chemicals transportation regulations are followed.
River, if it is a transportation waterway, in the transportation of chemical raw materials, factors such as river water level, flow rate, and water quality should be considered. If the water level is too low, it may cause the ship to run aground; if the flow rate is too fast, it will increase the difficulty of transportation and control. Poor water quality, or react with the transported chemicals. At the same time, it is necessary to prevent chemicals from leaking into the river and polluting the water body during transportation.
Ethanol is a flammable liquid. When storing, it should be stored in a cool and ventilated warehouse, away from fire and heat sources, and the storage temperature should not exceed 30 ° C. The warehouse should have explosion-proof facilities, and ethanol should be stored separately from oxidants, acids, alkali metals, etc., and should not be mixed. During transportation, the vehicles used must meet fire safety requirements and have grounding devices to prevent static electricity from causing fires.
Aminobenzoic acid should be stored in a cool, dry and well-ventilated place, away from fire and heat sources, and protected from direct sunlight. It should be stored separately from oxidizing agents, acids and alkalis to avoid contact and reaction. During transportation, ensure that the packaging is complete to prevent damage and leakage.
When storing and transporting these substances, they must strictly follow relevant safety regulations and standards, and must not be negligent and cause safety accidents.