9-fluorenone density g/ml

2 min read 27-02-2025

The density of 9-fluorenone is a frequently sought-after piece of information in various scientific and industrial applications. Understanding its density is crucial for accurate calculations in synthesis, purification, and other experimental procedures. This article provides a comprehensive overview of 9-fluorenone density, including its value, influencing factors, and practical applications.

What is 9-Fluorenone Density?

9-Fluorenone, a versatile aromatic ketone, possesses a specific density that represents its mass per unit volume. This density is typically expressed in grams per milliliter (g/mL) or grams per cubic centimeter (g/cm³). Knowing the precise density is vital for various calculations, such as determining the mass of a given volume or vice versa.

Density Value of 9-Fluorenone

The reported density of 9-fluorenone varies slightly depending on the source and measurement conditions (temperature and pressure primarily). However, a commonly accepted value is approximately 1.30 g/mL at room temperature (around 25°C). It's crucial to note that this value might exhibit minor variations based on the purity of the sample and measurement methodology.

Factors Affecting Density

Several factors can influence the measured density of 9-fluorenone:

Temperature: Density is temperature-dependent. Higher temperatures generally lead to lower densities due to thermal expansion. Always specify the temperature at which the density is measured.
Pressure: While less impactful than temperature at typical lab conditions, pressure can also subtly influence density. High pressures compress the substance, resulting in a slightly higher density.
Purity: Impurities in the 9-fluorenone sample will affect its density. Higher purity typically results in a density closer to the reported value.

Practical Applications of 9-Fluorenone Density

The knowledge of 9-fluorenone's density is applied across numerous fields:

Organic Chemistry Synthesis: Density is used to calculate the amount of 9-fluorenone needed for reactions, ensuring accurate stoichiometry. It’s crucial for scaling up reactions from small-scale experiments.
Purification and Recrystallization: Determining the amount of solvent needed for recrystallization requires knowing the density of 9-fluorenone for proper calculations.
Spectroscopy: Density is necessary in calculating concentrations for spectroscopic analyses, such as UV-Vis or IR spectroscopy.
Material Science: Density is a fundamental property considered in material characterization and development of new materials incorporating 9-fluorenone.

How to Determine 9-Fluorenone Density

The most accurate method for determining density is using a pycnometer. This specialized instrument measures the volume of a known mass of the substance, allowing for a precise calculation of density. Other methods, such as determining mass and volume using a graduated cylinder, offer less accurate results. However, for routine applications, a graduated cylinder method may suffice if high precision isn't required. Always ensure accurate measurement of both mass and volume for reliable results.

Safety Precautions When Handling 9-Fluorenone

9-Fluorenone, while not exceptionally hazardous, should be handled with appropriate safety precautions. Always wear appropriate personal protective equipment (PPE), such as gloves and eye protection. Work in a well-ventilated area to minimize inhalation of dust or fumes. Consult the Safety Data Sheet (SDS) for detailed safety information before handling.

Conclusion

The density of 9-fluorenone, typically around 1.30 g/mL at room temperature, is a critical parameter in various scientific and industrial applications. Understanding the factors that can influence density, along with proper measurement techniques, ensures accurate results and safe handling of this valuable chemical compound. Remember to always consult reliable sources and safety data sheets for accurate information and proper handling procedures.