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Laboration Flash point

Topic: Chemistry
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Method Description: We used a burner, two beakers, a thermometer, a 100ml beaker, red ethanol and water. We began by measuring the 50% water and 50% ethanol as we poured into a crucible then we tried to light it with the help of just a match to check if the flash point was lower or the same rate as the liquid was then. The mixture began to burn, but we added the burner so we checked the temperature with a thermometer so we got to know the flash point when the relationship between the ethanol and the water was 50%.
After we raised the proportion of water and did the same thing: Tried to get the liquid to start a fire using only a match. This time it was not, liquid ignited not so we had to use the burner to increase the temperature of the liquid. After a while, when the temperature had been raised pretty much started the fluid to burn. We turned off the recorder, checked the temperature, let it sink two degrees, and checked the "match test", it continued to burn so we repeated the "match test" when the liquid level had dropped even a little more until it failed to ignite. In this way, we found out the flash point and then we repeated the experiment with different mixes to see a relationship between ethanol and water and their flashpoint together.


Discussion: What one can see the diagram is that the more water we have blended into the higher flash point. When we examined the association of 10% ethanol and 90% water, we were not fluid to burn. It did not ignite, how high temperature it than got. So when ethanol achieved a share is only 10% of the liquid is the otändbar and not dangerous. It reduces fuel (ethanol) energy by adding water.
This is a practical example of that ethanol can be extinguished with water. Ethanol is used in many different areas, for example, it can be used as gasoline, medicines, cleaning products, alcohol beverages and much more. So if we think of the example a nurse drops out of a bottle with rectified spirit containing about 96% ethanol and 4% water. Then when the nurse will wipe up the spilled medical booze she happens to fall down a lit candle that falls to the floor where medical liquor formed a puddle. The lighted candle allows immediately to a large flame of fire which extends over the floor. To extinguish the fire needs the nurse just enough to nearest water extinguishers. Many probably think it is needed, for example, a dry chemical or foam fire extinguisher to extinguish the fire because there are spirits, and used as fuel, and you have heard that it is absolutely forbidden to light a match at a petrol station so one associates the ethanol that point. But because the ethanol and water is both a polar (a molecule having positive and negative charges that are not met) judgment is easily soluble in each other. The ethanol is soluble in water, the water contributes to the flashpoint is increased (see chart), and after a while the fire will go out. There is thus needed no powder or foam extinguisher designed to extinguish the fire with, in this case, medical liquor but with ethanol at all. With other substances, such as gasoline which is made of oil can not be extinguished with water, forming two layers because the oil has a higher density than water. It's really the biggest difference between ethanol and other oil (petroleum) products.

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