2006-06-24 14:57:53 · 6 answers · asked by tinpals 1 in Science & Mathematics ➔ Chemistry
Really quickly?... that's easy! If you have only 2 layers, waft the vapors toward your nose. If it smells like chloroform... BAM it is the methylene chloride. That means it is on top! If not, it is on bottom! Now, you ask... but what if I am using chloroform? Not to worry... Chloroform and Methylene Chloride are completely soluable in one another. Therefore, they won't extract.
2006-06-25 14:48:12 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Put 1 mL of the methylene chloride in 5 mL of the other solvent. The 1 mL will end up on the top or bottom. You shouldn't be using methylene chloride for extraction these days due to the safety restrictions by most governments.
2006-06-24 22:49:44 · answer #2 · answered by Peter Boiter Woods 7 · 0⤊ 0⤋
If your two solvents are MeCl2 and H2O, then a pretty sure bet is that the MeCl2 layer is the bottom layer. Methylene Chloride is more dense than water, so unless you have interference by solids or emulsions, it will sink to the bottom.
I agree with a previous responder - one way to know for sure is put 1 mL MeCl2 in a large test tube with 5 mL of your other solvent. Shake vigorously and watch closely as they separate. The smaller layer will be your MeCl2. Don't forget to wear proper PPE - lab coat, gloves (neoprene or stronger), safety glasses with side shields, and work in a fume hood with a face velocity of at least 100 ft/s. Methylene Chloride is nothing to mess around with.
2006-06-24 23:21:18 · answer #3 · answered by nardhelain 5 · 0⤊ 0⤋
Check the specifc gravities of the components in the extraction
2006-06-25 01:54:24 · answer #4 · answered by Giridhar 2 · 0⤊ 0⤋
how can you prove? check the standard densities of the two, and whichever has a higher density will be on the bottom
2006-06-24 22:19:10 · answer #5 · answered by kyuketsuki084 3 · 0⤊ 0⤋
In my experience, the denser liquid is usually on the bottom :)
2006-06-24 22:02:05 · answer #6 · answered by rb42redsuns 6 · 0⤊ 0⤋