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1-Bromohexadecane is a dark yellow liquid, soluble in ether, very slightly soluble in methanol and almost insoluble in water. Stable under normal temperature and pressure, avoid contact with strong oxidant. It is usually used for the production of surfactants, and also for the preparation of bactericides and detergents. Intermediates of surfactants, also used as fungicides; Production of detergents and the like.
|
Chemical Formula |
C12H25Br |
|
Exact Mass |
248 |
|
Molecular Weight |
249 |
|
m/z |
248 (100.0%), 250 (97.3%), 249 (13.0%), 251 (12.6%) |
|
Elemental Analysis |
C, 57.83; H, 10.11; Br, 32.06 |
Synthesis of Bromododecane:
1. It is obtained by the reaction of lauryl alcohol (n-dodecyl alcohol) and hydrobromic acid: add lauryl alcohol into the enamel glass reaction pot, stir and cool, and slowly add sulfuric acid. Stir for 1H and then add hydrobromic acid. The temperature was gradually increased to 90 ~ 95 ℃, and the reaction was stirred for 8h. After the reaction, cool down to 30 ℃ and stand for 8h. Separate the acid layer, adjust the pH 8 of the oil layer with dilute alkaline solution, separate the alkaline solution and wash it with 50% ethanol. The product is obtained by vacuum distillation and collection of 140 ~ 200 ℃ (3.33kpa) fractions. The yield was over 90%.
2. Preparation method:
Add 186g (1.0mol) of n-dodecyl alcohol (2) into the reaction bottle equipped with stirrer, thermometer and vent tube, heat it to 100 ℃ under stirring, add dry hydrogen bromide gas, and keep the reaction temperature between 100 ~ 120 ℃ until the solution no longer absorbs hydrogen bromide. After cooling, add 70ml of water and shake it sufficiently to separate the water layer. Add 1 / 3 volume of concentrated sulfuric acid to the organic layer, shake it fully, then remove the acid layer, wash ① with water, 10% sodium carbonate and 50% methanol, dry with anhydrous calcium chloride, distill under reduced pressure, and collect 130-135 / 0.8kpa fractions to obtain 220g of 1-Bromododecane (1) ②, with a yield of 88%. Note: ① washing with 50% methanol can prevent emulsification, and the loss of product is small. ② It can also be prepared with 50% hydrobromic acid in the presence of sulfuric acid with a yield of about 90%.
1-Bromohexadecane, also known as bromohexadecane, is an important organic compound with various industrial applications and scientific research value. The following is a detailed explanation of its purpose:
Bromosadecane is an important intermediate for the production of surfactants. Surfactants are a class of compounds that can significantly reduce the surface tension of liquids, widely used in detergents, cosmetics, textiles, leather, papermaking, metal processing, pesticides, and other fields. Various surfactants can be synthesized through brominated hexadecane, which play an important role in improving product performance and enhancing production efficiency. Bromosadecane has bactericidal properties and can be used to prepare various fungicides. In fields such as healthcare, hygiene, and food processing, fungicides are key to ensuring product safety and hygiene. Due to its good solubility and chemical stability, hexadecane bromide is also used in the preparation of detergents. Detergents can effectively remove various dirt and grease, keeping the environment clean and hygienic.
Organic synthetic materials&cosmetic materials&other fields
Organic synthetic materials&cosmetic materials&other fields
Bromosadecane has a wide range of applications in the field of organic synthesis. It can be used as a raw material to participate in various organic reactions, such as substitution reactions, addition reactions, etc., to synthesize various organic compounds with specific structures and functions. It can be covalently functionalized with a hexadecyl chain to prepare soluble carbon nano onions. This material has potential application value in the field of nanotechnology. Bromo-hexadecane can be used to synthesize [2- (methacryloyloxy) ethyl] dimethylhexadecylammonium bromide monomer, which can then be used to synthesize novel methacrylate based adsorbents. This adsorbent has promising applications in fields such as wastewater treatment and air purification. It can also be used to prepare various other organic compounds, such as N-hexadecyl ethylenediamine triacetic acid (HED3A). These compounds have a wide range of applications in fields such as medicine and chemical engineering. It can be used as a cosmetic ingredient to improve the performance of cosmetics.
For example, it can increase the lubricity, stability, and durability of cosmetics, improving the effectiveness of product use.
Safety considerations: However, it should be noted that bromohexadecane may have certain irritants, so its application in cosmetics requires strict control of its dosage and concentration to ensure product safety. Bromosadecane can be used as an extraction solvent for the determination of endocrine disrupting phenols (EDPs) in water samples using ultrasound assisted emulsion microextraction (MS-USAEME) method. This method has the advantages of high efficiency, speed, and environmental friendliness, and has application prospects in the field of environmental monitoring.
The raw material of hexadecyltrimethylamine bromide: Hexadecyl bromide can also be used to prepare compounds such as hexadecyltrimethylamine bromide, which have a wide range of applications in the fields of medicine, chemical engineering, etc.
Melting point − 11 - − 9 ° C (lit.), Boiling point 134-135 ° C6 mm Hg (lit.), Density: 1.040 g / ml at 20 ° C, Vapor density 8.6 (vs air), Refractive index N20 / D 1.458 (lit.), Flash point > 230 ° f, Storage condition sealed in dry, 2-8 ° C, Solubility: solid, Form: liquid, Color: clear, Water solubility (insoluble), BRN 506159, Stability Combustible. Incompatible with strong oxidizing agents, strong bases., InChIKeyPBLNBZIONSLZBU-UHFFFAOYSA-N, security information, Hazard symbol (GHS), GHS07, Warning words, Hazard Description: h319-h315, Precautions: p264-p280-p302 + p352 + p332 + P313 + p362 + p364-p305 + P351 + P338 + P337 + P313, Dangerous goods sign Xi, Hazard category code: 36 / 37 / 38, Safety instructions 26-36-24 / 25, WGK Germany 3, F 19, TSCA Yes.
1-Bromohexadecane, also known as bromohexadecane, is an important organic compound with wide applications in various industrial fields. With the continuous advancement of chemical technology and changes in market demand, the development prospects of bromohexadecane are showing a positive trend. The following is a detailed analysis of its development prospects:
● Policy and regulatory support
Policy support
The government encourages enterprises to increase their technological research and innovation efforts, improve the production efficiency and product quality of chemical products such as bromohexadecane, by providing financial subsidies, tax incentives and other policy measures. At the same time, the government has strengthened planning and guidance for the chemical industry, promoting its development towards green, environmentally friendly, and sustainable directions.
Regulatory supervision
The government strengthens regulatory supervision of the chemical industry to ensure that the production and use of chemical products such as bromohexadecane comply with environmental and safety requirements. For example, the government has established strict environmental standards and safety regulations, requiring enterprises to take effective measures to reduce pollutant emissions and safety hazards during the production process. At the same time, the government has strengthened market supervision of chemical products, cracked down on counterfeit and shoddy products, and illegal and irregular behaviors.
● Future Development Trends
Market demand continues to grow
With the increasing market demand for chemical products such as surfactants, fungicides, and detergents, bromohexadecane, as one of the important raw materials for these products, will continue to increase in market demand. It is expected that the market for bromohexadecane will maintain a steady growth trend in the coming years.
The application fields are constantly expanding
With the rapid development of nanotechnology, new energy, new materials and other fields, bromohexadecane will show greater potential in these emerging application areas. It is expected that the application fields of bromohexadecane will continue to expand and deepen in the future, providing more opportunities for its market development.
Technological innovation drives development
With the continuous progress and innovation of chemical technology, the production technology of bromohexadecane will continue to improve and innovate. For example, new catalysts and reaction conditions can be used to improve the yield and purity of bromohexadecane; At the same time, more green and environmentally friendly production methods can also be explored. These technological innovations will drive the sustained development of the brominated hexadecane industry.
Environmental protection and sustainable development have become mainstream
With the increasing awareness of environmental protection and the deepening of the concept of sustainable development, the environmental protection and sustainability of chemical products such as bromohexadecane will become the focus of market attention. It is expected that in the future, the production and use of bromohexadecane will pay more attention to environmental protection and sustainable development, promoting the development of the chemical industry towards a green, environmentally friendly, and sustainable direction.
The demand for 1-bromohexadecane is expected to grow in tandem with advancements in nanotechnology, pharmaceuticals, and green chemistry. Innovations in catalytic bromination and continuous-flow synthesis could enhance efficiency and reduce environmental footprint. Furthermore, its role in developing advanced materials, such as stimuli-responsive hydrogels and drug delivery systems, underscores its enduring relevance in scientific and industrial domains.
1-Bromohexadecane stands as a testament to the interplay between molecular structure and functional utility. From its role as a synthetic building block to its applications in cutting-edge technologies, this compound continues to shape modern chemistry and industry. However, its environmental persistence necessitates a balanced approach, integrating innovation with sustainability to ensure its safe and responsible use for generations to come. As research progresses, 1-bromohexadecane will undoubtedly remain a cornerstone of organic synthesis and material science, driving progress across diverse scientific frontiers.
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