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What are the main uses of C8-C10 Alcohols?
C8 - C10 + alcohol has a wide range of uses. In the field of industry, it is often used as a solvent. Cover because of its specific solubility, soluble in many organic substances, so in the manufacture of coatings and inks, it can help pigments and resins to disperse evenly, making the product texture better and smoother to apply.
In the preparation of surfactants, it also plays a key role. After chemical reaction, various surfactants can be made. Such active agents can reduce the surface tension of liquids, enhance decontamination and emulsification, and make cleaning more thorough.
In addition, in the production of plasticizers, C8 - C10 + alcohol is also indispensable. Plasticizers can improve the flexibility and plasticity of plastic products, and are widely used in the plastics industry, enabling plastic products to meet diverse needs.
In the fragrance industry, some C8-C10 + alcohols can be used as fragrance components due to their unique odor, adding a pleasant atmosphere to perfumes, air fresheners, etc.
In addition, in the field of chemical synthesis, C8-C10 + alcohols can be used as intermediates, which can be converted into other important chemicals through a series of reactions, expanding the variety of chemical products, and are of great significance in the chemical industry chain. In short, C8-C10 + alcohols have important uses in industrial production and daily necessities manufacturing, and have far-reaching impact.
What are the physical properties of C8-C10 Alcohols?
C8 - C10 + alcohols, whose physical properties are crucial, are used in many fields. This alcohol mixture contains alcohols with 8 to 10 carbon atoms and above.
First talk about the appearance and smell. Usually a colorless and transparent liquid, but due to the specific components and impurities contained, there may be subtle color differences. The smell has a special mellow aroma, or varies slightly according to the composition, but generally has a typical alcohol aroma.
In terms of boiling point, due to the range of carbon atoms, the boiling point shows a certain range. The boiling point of C8 alcohol is relatively low, roughly between 180-210 ° C; the boiling point of C10 alcohol is higher, about 230-260 ° C. And with the increase in the number of carbon atoms, the boiling point gradually rises. Due to the increase in the number of carbon atoms, the intermolecular force is enhanced, and higher energy is required for boiling.
Solubility is also an important physical property. Partially soluble in water, and with the increase in the number of carbon atoms, the solubility in water decreases. Because the alcohol molecule contains hydroxyl groups, it can form hydrogen bonds with water to help it dissolve; but the hydrocarbon group is a hydrophobic group, the number of carbon atoms increases, the hydrophobic effect increases, and the solubility decreases. In organic solvents, such as ethers and esters, C8-C10 + alcohols have good solubility and can be miscible with many organic solvents, which provides convenience for them to be used as solvents in chemical processes or participate in reactions.
In terms of density, it is slightly smaller than water, generally between 0.8 and 0.9g/cm ³. This makes C8 - C10 + alcohols often float on water when mixed with water. This property needs to be paid attention to when separating, storing and using.
Volatility is relatively weak due to high boiling point. However, under certain temperature and environmental conditions, there will still be some volatilization. The volatilization rate varies with factors such as temperature, surface area, and air circulation. This should be considered when using and storing to ensure safety and prevent loss.
Are the chemical properties of C8-C10 Alcohols stable?
C8-C10 alcohols are a class of alcohols containing eight to ten carbon numbers. The stability of its chemical properties is related to multiple ends.
When it comes to stability, it is necessary to look at its molecular structure. Such alcohols have straight-chain or branched-chain alkyl groups connected to hydroxyl groups. The presence of hydroxyl groups makes the molecule have a certain polarity. However, due to the growth of the carbon chain, the intermolecular van der Waals force is enhanced. As far as thermal stability is concerned, it is quite stable under normal conditions, and there is no hot topic or special conditions, making it difficult to change the thermal decomposition. Due to the high energy of carbon-carbon bonds and carbon-hydrogen bonds, a lot of energy is required to break them.
Then again, its chemical stability, under non-extreme conditions, is stable to many weak acids and bases. When encountering strong acids and bases, the hydroxyl group may be affected. Such as concentrated sulfuric acid when stored, or cause dehydration reaction, olefin substances. This shows that its stability is not good under strong acids.
Oxidation reaction also affects its stability. In air, or slowly oxidized, especially with catalysts or high temperature assistance, the hydroxyl group can be gradually changed to aldehyde group, carboxyl group, etc.
In summary, the chemical properties of C8-C10 alcohol are still stable under conventional conditions, but when encountering specific reagents, temperatures, catalysts, etc., or chemical reactions, the stability can be changed. Its stability is not absolute and varies with external conditions.
What is the production process of C8-C10 Alcohols?
C8-C10 + alcohols are a class of alcohols with a carbon number of 8 to 10 and above. Its production process is quite delicate and involves several key steps.
At the beginning, natural oils or petrochemical raw materials are often used as sources. If natural oils are used as the starting point, hydrolysis is required first. In contact with water, oils are decomposed into fatty acids and glycerol under specific conditions and with the help of catalysts. This fatty acid is an important precursor for the synthesis of C8-C10 + alcohols.
Next, the fatty acids are treated and hydrodeoxygenated. In the hydrogenation reactor, under high temperature and high pressure and the action of a catalyst, the oxygen atoms in the fatty acid combine with hydrogen, turn into water and escape, and themselves transform into corresponding fatty alcohols. This process has strict requirements on the selection and dosage of temperature, pressure, and catalyst. If the temperature is too high or too low, the reaction rate and product selectivity can be changed; if the pressure is not suitable, it also affects the reaction process. The activity and stability of the catalyst are the keys to the effectiveness of the reaction.
If the petrochemical raw material is used as the starting point, it is mostly carbonylated by olefins. Olefins, carbon monoxide, and hydrogen, under the guidance of the catalyst, generate aldose. This aldehyde is then hydrogenated to obtain the target alcohol. In this path, the performance of the catalyst is also crucial, which determines the activity and selectivity of the reaction. Different catalysts can make the distribution of reaction products vary greatly.
Furthermore, after the reaction is completed, it needs to be refined. Because the reaction products are often mixed with unreacted raw materials, by-products and catalyst residues. It is necessary to separate and purify the target C8-C10 + alcohol by distillation, extraction, adsorption and other methods to achieve the corresponding Quality Standards before it can be used in various industries. In this way, the production process of C8-C10 + alcohol is obtained.
What is the price range of C8-C10 Alcohols in the market?
C8-C10 alcohol, the price of the market is difficult to determine. This is due to the ever-changing market conditions, and the price varies with supply and demand, source, system, and various times.
In the past, if the weather went well, the production area was abundant, and those who needed it were not abundant, the price might be slightly lower. However, if the weather was not good, the production area was not harvested, or the industry was prosperous, and there were many applicants and few suppliers, the price would rise.
Furthermore, the method of making it is also related to its price. If the ancient method is simple and easy, and the cost is small, the price should be appropriate; if the new technique is used, although the quality is high, the cost is high and the price is also high. And the distance of transportation, the amount of cost, are all variables of price.
If we look at the market in recent years, the price of C8-C10 alcohol fluctuates every time. When the supply is sufficient, the price per ton may be in the thousands; and when the supply is insufficient, the price may rise sharply, reaching nearly ten thousand dollars. In short, the market is volatile, and the price is not fixed. If the industry wants to know the exact price, it must always check the market and judge the situation to get the real chapter.