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1-fluorohexane
1-Fluorohexane is a chemical compound from the group of aliphatic saturated halogenated hydrocarbons. The chemical formula is . Synthesis 1-Fluorohexane can be obtained by reacting 1-chlorohexane or 1-Bromohexane, 1-bromohexane with potassium fluoride in ethylene glycol. Physical properties 1-Fluorohexane is a colorless liquid that is soluble in ether and benzene. Chemical properties The compound reacts with activated Mg: :: Uses The compound is primarily used in the field of organic chemistry as a reagent or solvent. Also, 1-fluorohexane is used in physical chemistry as a model compound for understanding the physico-chemical properties of fluorinated hydrocarbons. See also * 1-Bromohexane * 1-Chlorohexane * 1-Iodohexane * Perfluorohexane References {{DEFAULTSORT:Fluorohexane, 1- Fluoroalkanes Alkylating agents ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perfluorohexane
Perfluorohexane (), or tetradecafluorohexane, is a fluorocarbon. It is a derivative of hexane in which all the hydrogen atoms are replaced by fluorine atoms. It is used in one formulation of the electronic cooling liquid/insulator Fluorinert for low-temperature applications due to its low boiling point of 56 °C and freezing point of −90 °C. It is odorless and colorless. Unlike typical hydrocarbons, the structure features a helical carbon backbone. In medical imaging it is used as a contrast agent. Oxygen solubility Because it is biologically inert and chemically stable, perfluorohexane has attracted attention in medicine. Like other fluorocarbons, perfluorohexane dissolves gases, including oxygen from the air, to a higher concentration than ordinary organic solvents. This effect is attributed to the weak intermolecular forces between perfluorohexane molecules, which allows "space" for gas molecules to partition into the liquid. Animals can be submerged in a bath of ox ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IOS Press
IOS Press is a publishing house headquartered in Amsterdam, specialising in the publication of journals and books related to fields of scientific, technical, and medical (STM) research. It was established in 1987 by Einar Fredriksson with a strong focus on computer science and artificial intelligence. IOS Press has since diversified to include basic sciences and medicine. IOS Press publishes around 90 international journals and releases about 70 book titles annually, covering fields such as computer science, mathematics, the natural sciences, and topics within medicine. History A subsidiary based in the United States (IOS Press, Inc.) was created in 1990, based in the Washington, D.C. area. In the 1990s, IOS Press partnered with Ohmsha Ltd. (Japan) and re-established the Akademische Verlagsgesellschaft AKA GmbH aka AKA-Verlag (Germany). Other co-publishing and joint venture relationships have been formed to extend IOS Press' academic publishing coverage between Germany, J ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1-chlorohexane
1-Chlorohexane is a chemical compound from the group of aliphatic saturated halogenated hydrocarbons. The chemical formula is . Synthesis 1-Chlorohexane can be obtained by reacting hexyl alcohol with hydrochloric acid or thionyl chloride. Physical properties 1-Chlorohexane is a colorless liquid with an aromatic odor that is very sparingly soluble in water. Chemical properties 1-Fluorohexane can be prepared by reacting 1-chlorohexane with potassium fluoride in ethylene glycol. 2-Phenylhexane can be prepared by reacting the compound with benzene and aluminum trichloride. See also *1-Fluorohexane *1-Bromohexane *1-Iodohexane 1-Iodohexane is a chemical compound from the group of aliphatic saturated halogenated hydrocarbons. The chemical formula is . It is a colorless liquid. Synthesis 1-Iodohexane can be obtained by treating 1-bromohexane with potassium iodide. The c ... References {{DEFAULTSORT:Chlorohexane, 1- Chloroalkanes Alkylating agents ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1-Bromohexane
} 1-Bromohexane is organobromine compound with formula Br(CH2)5CH3. It is a colorless liquid. Synthesis and reactions Most 1-bromoalkanes are prepared by free-radical addition of hydrogen bromide to the 1-alkene. These conditions lead to anti-Markovnikov addition, giving the 1-bromo derivative. 1-Bromohexane undergoes reactions expected of simple alkyl bromides. It can form Grignard reagents. It reacts with potassium fluoride to give the corresponding fluorocarbons. See also * 1-Fluorohexane * 1-Chlorohexane * 1-Iodohexane * Bromoalkane Organobromine chemistry is the study of the synthesis and properties of organobromine compounds, also called organobromides, which are organic compounds that contain carbon bonded to bromine. The most pervasive is the naturally produced bromometha ...s * Bromocyclohexane * Bromocyclopropane References {{DEFAULTSORT:Bromohexane, 1- Bromoalkanes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potassium Fluoride
Potassium fluoride is the chemical compound with the formula KF. After hydrogen fluoride, KF is the primary source of the fluoride ion for applications in manufacturing and in chemistry. It is an alkali halide salt and occurs naturally as the rare mineral carobbiite. Solutions of KF will etch glass due to the formation of soluble fluorosilicates, although HF is more effective. Preparation Potassium fluoride is prepared by reacting potassium carbonate with hydrofluoric acid. Evaporation of the solution forms crystals of potassium bifluoride. The bifluoride on heating yields potassium fluoride: : : Platinum or heat resistant plastic containers are often used for these operations. Potassium chloride converts to KF upon treatment with hydrogen fluoride. In this way, potassium fluoride is recyclable. Crystalline properties KF crystallizes in the cubic NaCl crystal structure. The lattice parameter at room temperature is 0.266 nm. Applications in organic chemistry In organic c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ethylene Glycol
Ethylene glycol ( IUPAC name: ethane-1,2-diol) is an organic compound (a vicinal diol) with the formula . It is mainly used for two purposes: as a raw material in the manufacture of polyester fibers and for antifreeze formulations. It is an odorless, colorless, flammable, viscous liquid. It has a sweet taste but is toxic in high concentrations. This molecule has been observed in outer space. Production Industrial routes Ethylene glycol is produced from ethylene (ethene), via the intermediate ethylene oxide. Ethylene oxide reacts with water to produce ethylene glycol according to the chemical equation : This reaction can be catalyzed by either acids or bases or can occur at neutral pH under elevated temperatures. The highest yields of ethylene glycol occur at acidic or neutral pH with a large excess of water. Under these conditions, ethylene glycol yields of 90% can be achieved. The major byproducts are the oligomers diethylene glycol, triethylene glycol, and tetra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georg Thieme Verlag
Thieme Medical Publishers is a German medical and science publisher in the Thieme Publishing Group. It produces professional journals, textbooks, atlases, monographs and reference books in both German and English covering a variety of medical specialties, including neurosurgery, orthopaedics, endocrinology, urology, radiology, anatomy, chemistry, otolaryngology, ophthalmology, audiology and speech-language pathology, complementary and alternative medicine. Thieme has more than 1,000 employees and maintains offices in seven cities worldwide, including New York City, Beijing, Delhi, Stuttgart, and three other cities in Germany. History Georg Thieme Verlag was founded in 1886 in Leipzig, Germany, by Georg Thieme when he was 26 years old. Thieme remains privately held and family-owned. The company received some early success in 1896 by publishing Wilhelm Röntgen's famous picture of his wife's hand in what is still one of Thieme's and Germany's oldest journals, the ''Deutsche ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ether
In organic chemistry, ethers are a class of compounds that contain an ether group, a single oxygen atom bonded to two separate carbon atoms, each part of an organyl group (e.g., alkyl or aryl). They have the general formula , where R and R′ represent the organyl groups. Ethers can again be classified into two varieties: if the organyl groups are the same on both sides of the oxygen atom, then it is a simple or symmetrical ether, whereas if they are different, the ethers are called mixed or unsymmetrical ethers. A typical example of the first group is the solvent and anaesthetic diethyl ether, commonly referred to simply as "ether" (). Ethers are common in organic chemistry and even more prevalent in biochemistry, as they are common linkages in carbohydrates and lignin. Structure and bonding Ethers feature bent linkages. In dimethyl ether, the bond angle is 111° and C–O distances are 141 pm. The barrier to rotation about the C–O bonds is low. The bonding of ox ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benzene
Benzene is an Organic compound, organic chemical compound with the Chemical formula#Molecular formula, molecular formula C6H6. The benzene molecule is composed of six carbon atoms joined in a planar hexagonal Ring (chemistry), ring with one hydrogen atom attached to each. Because it contains only carbon and hydrogen atoms, benzene is classed as a hydrocarbon. Benzene is a natural constituent of petroleum and is one of the elementary petrochemicals. Due to the cyclic continuous pi bonds between the carbon atoms, benzene is classed as an aromatic hydrocarbon. Benzene is a colorless and highly Combustibility and flammability, flammable liquid with a sweet smell, and is partially responsible for the aroma of gasoline. It is used primarily as a Precursor (chemistry), precursor to the manufacture of chemicals with more complex structures, such as ethylbenzene and cumene, of which billions of kilograms are produced annually. Although benzene is a major Chemical industry, industrial che ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Wiley & Sons
John Wiley & Sons, Inc., commonly known as Wiley (), is an American Multinational corporation, multinational Publishing, publishing company that focuses on academic publishing and instructional materials. The company was founded in 1807 and produces books, Academic journal, journals, and encyclopedias, in print and electronically, as well as online products and services, training materials, and educational materials for undergraduate, graduate, and continuing education students. History The company was established in 1807 when Charles Wiley opened a print shop in Manhattan. The company was the publisher of 19th century American literary figures like James Fenimore Cooper, Washington Irving, Herman Melville, and Edgar Allan Poe, as well as of legal, religious, and other non-fiction titles. The firm took its current name in 1865. Wiley later shifted its focus to scientific, Technology, technical, and engineering subject areas, abandoning its literary interests. Wiley's son Joh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physical Chemistry
Physical chemistry is the study of macroscopic and microscopic phenomena in chemical systems in terms of the principles, practices, and concepts of physics such as motion, energy, force, time, thermodynamics, quantum chemistry, statistical mechanics, analytical dynamics and chemical equilibria. Physical chemistry, in contrast to chemical physics, is predominantly (but not always) a supra-molecular science, as the majority of the principles on which it was founded relate to the bulk rather than the molecular or atomic structure alone (for example, chemical equilibrium and colloids). Some of the relationships that physical chemistry strives to understand include the effects of: # Intermolecular forces that act upon the physical properties of materials ( plasticity, tensile strength, surface tension in liquids). # Reaction kinetics on the rate of a reaction. # The identity of ions and the electrical conductivity of materials. # Surface science and electrochemistry of cell m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
