Does anyone know the specific difference between ethylene glycol and ethylene glycol?

The two are the same thing, which is what we usually call ethylene glycol.

Calling ethylene glycol is a matter of translation, because the English is ethylene glycol, but if you read English chemistry books or search on Google, ethylene glycol is ethylene glycol in Chinese.

If ethylene glycol is really a double bond with two hydroxyl groups, it cannot exist stably at all, and the enol will be transferred to the carbon and oxygen on one side and become an aldehyde group, and then condensed to produce enone or polymerized with each other to produce new substances.

I've read that the answers on several are all wrong, or the text is wrong, so let's take a look.

The chemical formula is (hoch2)?, is the simplest diol. Ethylene glycol is a colorless, odorless, sweet-smelling liquid that is toxic to animals and is estimated to be a lethal dose of g kg for humans. Ethylene glycol can be combined with water and acetone.

Soluble but soluble in ethers.

Smaller. It is used as a solvent, antifreeze and raw material for synthetic polyester. Polyethylene glycol, a polymer of ethylene glycol.

PEG) is a phase transfer catalyst that is also used in cell fusion; its nitric acid.

Ester is a type of explosive.

Polyethylene glycol 20000cas no25322-68-3 Dangerous Goods Number. No data available Alias Polyethylene glycol Molecular formula [C4H10O3]n English name Polyethylene glycol Molecular weight No data available.

Physicochemical properties.

Appearance and properties: colorless, odorless, viscous liquid or waxy solid.

Relative density: No data.

Relative vapor density: No data.

Melting Point: Not available.

Boiling Point: No Data Concentration: Pure Product Saturation Vapor Pressure: No Data Available.

Solubility: Soluble in water, soluble in ethanol.

and most other organic solvents.

Heat of combustion (kj mol): No data.

Critical temperature ( ) is not available.

Critical Pressure (MPa): It is used as a plasticizer, softener, humidifier, lubricant, and used to make ointments and medicines.

Precautions for handling and storage operations: Closed operation. Closed operation to provide good natural ventilation conditions.

Operators must be specially trained and strictly follow operating procedures. It is recommended that operators wear self-priming filtering dust masks, chemical safety glasses, anti-poison penetration overalls, and rubber gloves. Keep away from fire and heat sources, and smoking is strictly prohibited in the workplace.

Use explosion-proof ventilation systems and equipment. Avoid contact with oxidants. When handling, it is necessary to load and unload lightly to prevent damage to the packaging and containers.

Equipped with corresponding varieties and quantities of fire-fighting equipment and leakage emergency treatment equipment. Empty containers may leave harmful substances behind.

Propylene glycol:

ho-ch-oh

ch2=c-ch3

As far as the equation goes, the double bond is reducible, unstable, flammable (the dots in the picture above are added to prevent misalignment) and in fact it is used in the production of antifreeze, an additive and a raw material for the production of cigarettes.

Due to its low molecular weight and active nature, it can be used for esterification, etherification, alcoholization, oxidation, acetal, dehydration and other reactions.

Similar to ethanol, it can mainly react with inorganic or organic acids to form esters, generally only one hydroxyl group reacts first, and both hydroxyl groups can be formed into esters by increasing the temperature and increasing the amount of acid. If it reacts with nitric acid mixed with sulfuric acid, it forms nitrite. Acid chloride or anhydride tends to make two hydroxyl groups form esters.

Ethylene glycol is heated under the action of a catalyst (manganese dioxide, alumina, zinc oxide or sulfuric acid), and intramolecular or intermolecular water loss can occur. Ethylene glycol can react with alkali metals or alkaline earth metals to form alkoxides. Usually the metal is dissolved in the diol, and only one alkoxide is obtained; If this alkyl salt (e.g. monosodium glycol) is heated to 180 200°C in a hydrogen gas stream, disodium glycol and ethylene glycol can be formed.

In addition, ethylene glycol is heated together with 2 molar sodium methoxide to obtain disodium ethylene glycol. Disodium ethylene glycol reacts with alkyl halides to form ethylene glycol monoether or diether. Disodium ethylene glycol reacts with 1,2 dibromoethane to form dioxane.

In addition, ethylene glycol is also susceptible to oxidation, and depending on the oxidant used or reaction conditions, various products can be generated, such as glycolaldehyde hoch2cho, glyoxaldehyde ohccho, glycolic acid hoch2cooh, oxalate hooccooh, carbon dioxide and water. Ethylene glycol, unlike other glycols, can be oxidized by periodic acid to cause carbon chain breakage. Ethylene glycol is often used instead of glycerol.

In the tanning and pharmaceutical industries, it is used as a hydrating agent and solvent, respectively. Nitrite, a derivative of ethylene glycol, is an explosive. Monomethyl ether or monoether of ethylene glycol is a good solvent such as the methyl fibrinolytic agent hoch2ch2och3 to dissolve fibers, resins, paints, and many other organic substances.

Ethylene glycol has a strong solubility ability, but it is easy to metabolize and oxidize to produce toxic oxalic acid, so it cannot be widely used as a solvent.

The differences between ethylene glycol and ethanol are as follows:

First, the chemical formula is different.

1. The chemical formula of ethylene glycol is (CH2OH)2

2. The chemical formula of ethanol is C h O

Second, the melting point is different.

1. Ethylene glycol melting point.

2. Ethanol melting point -114

Third, the critical pressure is different.

1. The critical pressure of ethylene glycol is 7699kpa

2. Ethanol critical pressure.

The main differences between ethylene glycol and ethanol are that they have different properties, different appearances, different solubilities, and different applications, as follows:

First, the nature is different.

1. Ethylene glycol.

Ethylene glycol is also known as glycol, 1,2-ethylene glycol, referred to as EG. The chemical formula is (CH2OH)2 and is the simplest diol.

2. Ethanol. Ethanol is an organic compound with a simple structure of CH3CH2OH or C2H5OH and a molecular formula of C2H6O, commonly known as alcohol.

Second, the appearance is different.

1. Ethylene glycol.

Colorless, sweet-smelling, viscous liquid.

2. Ethanol. Colorless transparent liquid with an aromatic odor.

Third, the solubility is different.

1. Ethylene glycol.

Ethylene glycol can be soluble with water and acetone, but its solubility is less in ethers.

2. Ethanol. It is miscible with water, and can be miscible with most organic solvents such as ether, chloroform, glycerol, methanol, etc.

Fourth, the application is different.

1. Ethylene glycol.

It is used as a solvent, antifreeze and a raw material for the synthesis of Shendou polyester.

2. Ethanol. Ethanol can be used to make acetic acid, beverages, flavors, dyes, fuels, and more.

The above content refers to Encyclopedia-Ethylene Glycol.

The difference between ethylene glycol and ethanol is mainly reflected in their structure and properties:

1.Structure: Ethylene glycol (chemical formula: C2H6O2) is a diol containing two hydroxyl (-OH) functional groups. Ethanol (chemical formula: C2H5OH) is a monool containing only one hydroxyl row functional group.

2.Molecular weight: Ethylene glycol has a larger molecular weight than ethanol, which has a molecular weight of g mol and ethanol has a molecular weight of g mol.

3.Solubility: Ethylene glycol has good solubility in water, while ethanol also has some solubility, but not as good as ethylene glycol.

4.Uses: Ethylene glycol is often used as an intermediate for solvents, antifreeze and some chemical reactions. Ethanol is often used as a solvent, fuel, alcoholic beverage, etc.

5.Toxicity: Ethylene glycol has high toxicity, and ingestion or inhalation of ethylene glycol can cause harm to the human body. Ethanol is relatively safe for humans in moderate amounts, but excessive consumption of ethanol can cause health damage.

In general, ethylene glycol and ethanol, although both alcohols, have certain differences in structure and properties, so there are also differences in use and safety.

Ethanol (alcohol) and ethylene glycol are two different organic compounds:

1.Chemical structure: The ethanol molecule is composed of two carbon atoms, one oxygen atom and six hydrogen atoms, and the chemical formula is C2H5OH; The ethylene glycol molecule is composed of two carbon atoms, two oxygen atoms, and six hydrogen atoms with the chemical formula C2H6O2.

2.Properties: Ethanol is a colorless, volatile liquid with a special alcohol odor and soluble in water and other organic solvents; Ethylene glycol is also a colorless, viscous liquid with no obvious odor and soluble in water and many organic solvents, but its viscosity is high.

3.Uses: Ethanol is widely used in brewing, industrial solvents and disinfectants, and can also be used as fuel and chemical raw materials; Ethylene glycol is mainly used in the manufacture of polyester fibers, coatings, solvents and refrigerants, and can also be used as a lubricant and antifreeze.

4.Toxicity: Ethanol does not cause significant toxicity to the human body when drunk in moderation, but drinking large amounts can lead to alcohol poisoning; Ethylene glycol has a high toxicity to the human body, and ingestion of a large amount of ethylene glycol can cause toxic reactions and even life-threatening.