2006-10-29 11:03:09 · 3 answers · asked by P6890T 1 in Science & Mathematics ➔ Chemistry
THe question is too general. You should narrow it down before getting any meaningful answer.
2006-10-29 11:11:09 · answer #1 · answered by ArcH 2 · 0⤊ 0⤋
You can also use thin-layer chromatography to determine how many different substances are in the recovered material. They would have to be of a similar polarity, however. I used this method to determine whether I would need to use a silica gel column to further purify a product from a particular reaction and what polarity gradient of solvent mixture I'd need.
2006-10-29 11:50:18 · answer #2 · answered by Black Dog 6 · 0⤊ 0⤋
Usually we check the melting point or the boiling point of the recovered substance and compare it with the melting or the boiling point of the pure substance.
If the recovered substance is not pure it will have a lower melting point and a higher boiling point than the pure substance.
2006-10-29 11:19:02 · answer #3 · answered by Dimos F 4 · 0⤊ 0⤋