The initials are pdB. It is a chemical used usually in a hospital or anywhere else to keep away bugs. The melting point is 53 degrees celsius. When I did the experiment, I got the freezing point to be 23 degrees Celsius.
2006-11-15 14:07:20 · 3 answers · asked by nc123135 1 in Science & Mathematics ➔ Chemistry
To be perfectly exact, the melting point of the alpha modification, which has a monoclinic crystal structure, is 53.5 C, the beta form, which is triclinic, has an mp of 54 C.
I suspect your p-dichlorobenzene was contaminated, perhaps with water, causing a freezing point depression. Another possiblility is that the sample cooled so rapidly, that you overshot the freezing point.
2006-11-15 14:16:02 · answer #1 · answered by Anonymous · 0⤊ 0⤋
The melting pt/freezing point of para-dichlorobenzene is 53C. The main reason why your result may be off is because of an impurity in the mixture.
2006-11-15 22:17:51 · answer #2 · answered by margincallgentlemen 2 · 0⤊ 0⤋
Here is the answer and solution to you're quetion about pdB. And most likely everything else you would ever want to know about said substance.
2006-11-15 22:18:56 · answer #3 · answered by Anonymous · 0⤊ 0⤋