Analysis of External Factors in Liquid Density Measurement by Liquid Density Balance Manufacturers:

1. Temperature:

When the temperature of an organic compound liquid rises or falls, due to the relationship of thermal expansion and contraction, the volume of the liquid will expand or shrink, and the density of the liquid will also decrease or increase accordingly.

2. Pressure: 

When the pressure of organic compound liquids increases or decreases, the volume of the liquid also tends to decrease or increase slightly, but the magnitude of the change is much smaller than that caused by temperature changes. Therefore, the change in liquid density caused by pressure is smaller than that caused by temperature changes.

3. Polarity:

Liquid molecules are divided into polar molecules and non-polar molecules. There is only one very weak attraction between molecules in non-polar liquids, called the London dispersion force, while the attraction between polar molecules, in addition to the dispersion force, also involves the interaction force between dipoles or between dipoles and induced dipoles, making the arrangement of molecules more compact. Generally speaking, the liquid density of polar molecules is higher than that of non-polar molecules. The attraction between polar liquid molecules is enhanced by the presence of hydrogen bonds between molecules, so the liquid density of such compounds is usually relatively high.

4. Carbon chain length:

For non-polar liquids of the same series and liquids with extremely small dipole torches, the increase in the number of atoms in the molecules leads to an increase in intermolecular attraction, resulting in an increase in liquid density. For polar liquids with larger dipole torches, the growth of carbon chains actually reduces the density of the liquid. This is because the molecules of such compounds will have a smaller dipole torch due to the growth of carbon chains, and the attraction between molecules will also decrease, resulting in a decrease in density.

5. Is the molecular shape symmetrical

The more symmetrical the shape of a compound molecule, the higher its liquid density. This is a molecule with a more symmetrical shape, with a tighter arrangement of molecules and greater intermolecular attraction, hence f. The intrinsic factors that affect liquid density are closely related to the chemical structure of liquid molecules. Therefore, when exploring the liquid density of organic compounds, their chemical structure is a crucial influencing factor.