Relative vapor density of methyl acrylate

Hey, in the wonderful world of chemistry, methyl acrylate plays an important role that cannot be ignored. Today, let's study its relative vapor density.
We need to clarify what is relative vapor density. Relative vapor density refers to the ratio of the vapor density of a substance to the density of a reference substance (usually air) at the same temperature and pressure. This is a dimensionless physical quantity that reflects the relative weight of the substance's vapor to air. Understanding the relative vapor density of methyl acrylate is of great significance.
The molecular formula of methyl acrylate is C4H6O2, and the relative molecular weight can be obtained by adding the relative atomic masses of each atom. The relative atomic mass of carbon (C) is about 12, hydrogen (H) is about 1, and oxygen (O) is about 16. So in methyl acrylate, the total relative atomic mass of 4 carbon atoms is 4 × 12=48, the total relative atomic mass of 6 hydrogen atoms is 6 × 1=6, and the total relative atomic mass of 2 oxygen atoms is 2 × 16=32. Therefore, the relative molecular mass of methyl acrylate is 48+6+32=86. Air is a mixed gas with an average relative molecular mass of about 29. According to the ideal gas state equation pV=nRT (where p is pressure, V is volume, n is the quantity of matter, R is the molar gas constant, and T is temperature), at the same temperature and pressure, the ratio of the density of a gas is equal to the ratio of its relative molecular mass.
This means that under the same temperature and pressure conditions, the density of methyl acrylate vapor is approximately 2.97 times that of air. From a practical application perspective, this relative vapor density value plays an important indicative role. Due to the fact that methyl acrylate vapor is heavier than air, in places where methyl acrylate is stored, transported, and used, if there is a leak, the methyl acrylate vapor will diffuse close to the ground. This requires good ventilation facilities in relevant places, especially near the ground, to prevent steam accumulation from reaching dangerous concentrations and causing safety accidents such as explosions or poisoning.
From the perspective of safety protection, a relative vapor density of 2.97 indicates that when performing operations related to methyl acrylate, operators should pay attention to preventing vapor accumulation in low-lying areas. When entering areas where there may be a leakage of methyl acrylate vapor, appropriate protective equipment should be worn and entry should be made from a height to avoid inhaling high concentrations of vapor that can cause harm to the body.