High purity N-Heptadecane, with the chemical formula C₁₇H₃₆, is a straight-chain saturated alkane, also known as n-heptadecane. It is a type of higher alkane and has the typical characteristics of alkane compounds: a long-chain carbon-hydrogen structure, with carbon atoms connected by single bonds to form a stable molecular skeleton. Heptadecane is a colorless and transparent liquid at room temperature and pressure, with low volatility and high flash point, which makes it relatively safe during storage and use. Its melting point is about -50°C, and its boiling point varies with pressure, but is usually higher than room temperature, which makes heptadecane difficult to evaporate at room temperature.
Also, the chemical properties of heptadecane are relatively stable and not easy to react chemically. It is a non-polar molecule that is insoluble in water, but soluble in a variety of organic solvents, such as petroleum ether, ether, chloroform, etc. Since its molecules contain only single bonds and do not contain unsaturated bonds such as double bonds or triple bonds, it is not easy to undergo addition, oxidation and other reactions. However, under certain conditions, such as high temperature, high pressure or the presence of a catalyst, heptadecane can also undergo cracking, isomerization and other reactions to produce other hydrocarbon compounds.
Preparation method
Petroleum fractionation method: Petroleum is an important source of alkanes such as heptadecane. Through the refining and fractionation process of petroleum, various alkane products including heptadecane can be separated according to the difference in boiling points of different components. This method is the main way to produce heptadecane on a large scale in industry. Synthesis method: In the laboratory or small-scale production, heptadecane can also be prepared by chemical synthesis.
Uses
Solvents and diluents: Due to its good solubility and stability, heptadecane is often used as a solvent or diluent in organic synthesis to help other compounds mix and disperse better during the reaction process. Standard substances: Heptadecane is often used as a standard substance or reference substance in the fields of chemical analysis, quality control and instrument calibration. Its stable chemical properties and known physical parameters make it an ideal choice for these applications.
Storage method
Sealed storage: Since heptadecane is volatile, it should be stored in a sealed container to prevent it from evaporation and oxidation. Store away from light: Prolonged exposure to light may cause photochemical reaction of heptadecane and cause it to deteriorate. Therefore, it should be stored in a cool, dark place. Keep away from fire sources: Although heptadecane has a high flash point, fire or explosion accidents may still occur at high temperatures or near fire sources. Therefore, it should be kept away from fire and heat sources during storage and use.
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