CAS 71 - 23 - 8 refers to 1 - Propanol, a colorless, flammable liquid with a characteristic alcoholic odor. As a reliable supplier of CAS 71 - 23 - 8, I am well - versed in its various properties, especially its thermal properties. In this blog, I will delve into the thermal characteristics of 1 - Propanol, which will be of great help for those who are interested in its applications in different industries.
Boiling Point
The boiling point of 1 - Propanol is approximately 97.2 °C at standard atmospheric pressure (1 atm). This boiling point is relatively moderate compared to some other common alcohols. For instance, ethanol (CAS 64 - 17 - 5) has a boiling point of 78.37 °C, while butanol (CAS 71 - 36 - 3) has a boiling point around 117.7 °C. The moderate boiling point of 1 - Propanol makes it suitable for use in processes where a liquid needs to be vaporized and condensed within a reasonable temperature range.
In industrial applications, the boiling point is a crucial parameter. For example, in the production of certain solvents or in distillation processes, the knowledge of the boiling point helps in designing efficient separation and purification systems. The vaporization of 1 - Propanol at 97.2 °C allows it to be easily separated from other components in a mixture with different boiling points through fractional distillation.
Melting Point
The melting point of 1 - Propanol is about - 127 °C. This low melting point indicates that 1 - Propanol remains in a liquid state over a wide range of temperatures under normal conditions. It can be stored and transported without the risk of solidification in most environments.
The low melting point also has implications for its use in cold - temperature applications. For example, in some antifreeze formulations, 1 - Propanol can be added to lower the freezing point of the solution. This property is similar to that of China Factory Supply 99% Ethylene Glycol CAS 107 - 21 - 1, which is widely used as an antifreeze agent due to its ability to depress the freezing point of water - based solutions.
Heat Capacity
The heat capacity of 1 - Propanol is approximately 2.53 J/(g·K) at 25 °C. Heat capacity is the amount of heat energy required to raise the temperature of a unit mass of a substance by one degree Celsius (or Kelvin). A relatively high heat capacity means that 1 - Propanol can absorb a significant amount of heat without a large increase in temperature.
This property is useful in heat - transfer applications. For example, in some cooling systems, 1 - Propanol can be used as a heat - transfer fluid. It can absorb heat from a hot source and carry it to a cooler area, where the heat is released. Similar to 99% 1 - Tetradecanol CAS 112 - 72 - 1, which also has certain heat - transfer capabilities in specific applications, 1 - Propanol's heat - capacity property allows it to play an important role in maintaining stable temperatures in industrial processes.
Vapor Pressure
The vapor pressure of 1 - Propanol is a function of temperature. At 20 °C, the vapor pressure of 1 - Propanol is about 20 mmHg. Vapor pressure is the pressure exerted by the vapor of a substance in equilibrium with its liquid phase at a given temperature.
A relatively high vapor pressure at room temperature means that 1 - Propanol has a tendency to evaporate. This property is important in applications such as coatings and paints. When 1 - Propanol is used as a solvent in these applications, its evaporation rate affects the drying time of the coating. A proper balance of vapor pressure is required to ensure that the coating dries at an appropriate rate without causing defects such as blistering or uneven drying.
Thermal Conductivity
The thermal conductivity of 1 - Propanol is approximately 0.167 W/(m·K) at 20 °C. Thermal conductivity is a measure of a substance's ability to conduct heat. A relatively low thermal conductivity means that 1 - Propanol is not a very good conductor of heat.
However, in some applications where insulation or controlled heat transfer is required, this property can be an advantage. For example, in certain chemical reactions where heat needs to be generated and contained within a reaction vessel, the low thermal conductivity of 1 - Propanol can help prevent excessive heat loss to the surroundings.
Applications Based on Thermal Properties
The thermal properties of 1 - Propanol make it suitable for a wide range of applications. In the pharmaceutical industry, its moderate boiling point and low melting point make it a useful solvent for the extraction and purification of drugs. It can dissolve many organic compounds and can be easily removed through distillation due to its well - defined boiling point.
In the fragrance industry, China Factory Supply 99% Decyl Alcohol CAS 112 - 30 - 1 and 1 - Propanol are both important components. 1 - Propanol's vapor pressure and heat - capacity properties contribute to the proper dispersion and stability of fragrance compounds. It can act as a carrier for the fragrance molecules, allowing them to be released gradually over time.
In the fuel industry, although 1 - Propanol is not as commonly used as gasoline or diesel, its flammability and thermal properties make it a potential alternative fuel or fuel additive. Its ability to vaporize at a moderate temperature and its relatively high heat of combustion make it a candidate for use in some specialized engines or fuel blends.
Conclusion
In conclusion, the thermal properties of 1 - Propanol (CAS 71 - 23 - 8) play a crucial role in its various applications. The boiling point, melting point, heat capacity, vapor pressure, and thermal conductivity all contribute to its suitability in different industries such as pharmaceuticals, fragrances, and fuels.
As a reliable supplier of CAS 71 - 23 - 8, I understand the importance of these thermal properties for our customers. We ensure that our 1 - Propanol products meet the highest quality standards, with consistent thermal properties that are essential for your specific applications. If you are interested in purchasing 1 - Propanol or have any questions regarding its thermal properties and applications, please feel free to contact us for further discussion and procurement negotiations.
References
- CRC Handbook of Chemistry and Physics, 97th Edition.
- Lange's Handbook of Chemistry, 16th Edition.
- Perry's Chemical Engineers' Handbook, 8th Edition.
