Boiling point and vaporization temperature of dimethyl ether
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Under a certain pressure, are the boiling point and vaporization temperature of dimethyl ether the same value? ?
Yes. Dimethyl ether, also known as methyl ether, or DME for short, is a colorless gas or compressed liquid under normal pressure with a slight ether aroma. The relative density (20℃) is 0.666, the melting point is -141.5℃, the boiling point is -24.9℃, and the vapor pressure at room temperature is about 0.5MPa, which is similar to liquefied petroleum gas (LPG). Soluble in water and various organic solvents such as alcohol, ether, propylene glycol, and chloroform. It is flammable, the flame is slightly bright when burning, and the heat of combustion (gaseous state) is 1455kJ/mol. DME is inert at room temperature, not prone to auto-oxidation, non-corrosive, and non-carcinogenic, but it can decompose into methane, ethane, formaldehyde, etc. under radiation or heating conditions.
2# Benben, are you a manufacturer of dimethyl ether? ? What is your QQ number? ?
The boiling point is the temperature at which the saturated vapor pressure of a liquid equals the external pressure.