What is flash point

Flash point and boiling point, contrary to what people think, they are different and not the same; the flash point is said to be a volatile liquid if the point Boiling is used for any liquid. Flash point and boiling point are both terms used to describe the liquid state. Flash point is used specifically for volatile liquids; Because this is the lowest temperature at which the vapor of a volatile liquid can ignite. Also, the boiling point is the temperature at which the vapor pressure is equal to the external pressure around the liquid, and every liquid has a boiling point; If the volatile liquid has only one flash point. in which the vapor of the substance rises when connected to the source of ignition. Most people, including ourselves, confuse the fire point with the flame point; if we think that every pair of these two is the same; when If we don't have the source of ignition, the fire temperature gives the lowest temperature so that only vapor can sustain burning, which is very different from the definition of flash point.  

What is boiling point

Boiling point is the temperature at which the vapor pressure of a liquid becomes the same as the external pressure of its regions. For this reason, the boiling point is largely related to the boiling pressure. Let me explain with a simple example; Imagine a higher boiling pressure at the higher external pressure that water generally boils at 1000. As you know, the atmospheric pressure increases at higher altitudes; It boils water between 80 degrees Celsius. In other words, liquid boiling occurs when the temperature of the liquid is higher than the corresponding saturation pressure. The saturation temperature is the same as the boiling point of a liquid when boiling occurs when there is enough thermal energy to break the intermolecular bonds. The boiling point is generally at the saturation temperature at atmospheric pressure. If the boiling point is different between the triple point and the critical point. The flash point is the lowest temperature at which the material vapor ignites when there is an ignition source. Boiling point is the temperature at which the vapor pressure of a liquid is the same as the external pressure around it. The main difference between flash point and boiling point is that every liquid has a flash point, but only volatile liquids have a flash point. Imagine if we are at the boiling point. Hence, we can see the bubbles inside the liquid. Considering that there is a necessary difference between flash point and boiling point; It is if we can evaluate its mechanisms. The combustion of its steam is flammable, which occurs when there is a source, when there is suitable steam for ignition. We can say that at the boiling point, the pressure of a liquid is equal to the external pressure around it. We got to know flash point and related items; But let's take a look at the measurement %D8%AA%D8%B9%D8%A7%D9%84"> flash point. The ignition point is done in two models, among them, we can mention the closed cup or closed flash or the open cup or open flash. In the open cup requirements, samples and models are poured into the military container and heated, and once for each size; A flame is passed over the surface and the ignition point is measured, and no matter how many degrees it is, a flame is passed over its surface and the ignition point is measured. The most common example of this open-cup test is called COC.