What are the boiling point, melting point and density data for MIBK?

Detailed boiling point, melting point and density data of MIBK

in the chemical industry, MIBK (methyl isobutyl ketone) is a widely used organic compound. Its unique physical and chemical properties make it an important raw material in a variety of industrial applications. Understanding the physical properties of MIBK, such as boiling point, melting point and density, is important for its storage, transportation and use. This article will analyze these key data of MIBK in detail and discuss its importance in practical application.

What is MIBK?

MIBK, full name methyl isobutyl ketone, is a colorless liquid with a slight keto taste. It is a ketone compound with a chemical formula of C, H, O. Due to its low toxicity and good solubility, MIBK is widely used in industrial solvents, extractants and organic synthesis intermediates.

MIBK's boiling point

The boiling point of MIBK is one of the important parameters in its physical properties. The boiling point of MIBK generally refers to the temperature at which liquid MIBK changes from a liquid state to a gaseous state at standard atmospheric pressure (1 atm). According to literature and experimental data, the boiling point of MIBK is about 158°C. This boiling point characteristic makes it possible to use MIBK in high temperature environments, and it can be easily converted into a gas by heating in industrial processes.

The boiling point of MIBK is relatively high, which is mainly related to its molecular structure. The MIBK molecule contains a ketone group (C = O), which enhances the interaction between molecules, thereby increasing the boiling point. The carbon chain length and branched chain structure of MIBK also play a key role in increasing the boiling point.

MIBK melting point

Unlike the boiling point, the melting point of MIBK refers to the temperature at which a substance changes from a solid state to a liquid state. MIBK has a relatively low melting point of about -54°C. This characteristic makes it possible to use MIBK in low temperature environments, especially in industrial fields where low melting point characteristics are required.

The lower melting point of MIBK is mainly related to the branched isobutyl in its molecular structure. The branched chain structure makes the molecule have a certain degree of flexibility and lower symmetry, thereby reducing the force between molecules, resulting in a drop in the melting point. This characteristic makes MIBK flow better in low temperature environment, which is suitable for industrial processes requiring low temperature operation.

MIBK's density

The density of MIBK is another important parameter to measure its physical properties. The density of MIBK usually refers to the mass of MIBK per unit volume under standard temperature and pressure (normal temperature and pressure). According to experimental data, MIBK has a density of about 0.81 grams per cubic centimeter (g/cm³). This density characteristic indicates that MIBK is a relatively light weight liquid suitable for industrial applications requiring low density characteristics.

The lower density of MIBK is mainly due to the presence of branched isobutyl groups in its molecular structure. The branched structure makes the molecules more loose and the interaction force between molecules is weaker, thus reducing the overall density. The low polarity and hydrophobicity of MIBK also played a role in reducing the density.

Summary of the physical properties of MIBK

The physical properties of MIBK, including boiling point, melting point and density, have an important impact on its application in industry. MIBK's high boiling point makes it suitable for use in high temperature environments, while its low melting point and low density make it perform well in industrial applications where low temperatures and low densities are required. The comprehensive characteristics of these physical properties make MIBK have a wide range of application potential in the chemical industry.

Understanding key data such as MIBK's boiling point, melting point, and density not only helps optimize its industrial applications, but also helps companies better manage and control MIBK's performance during storage, transportation, and use. These data will be an important reference for readers who wish to gain insight into the physical properties of MIBK.