further practical techniques Flashcards
1
Q
filtration under reduced pressure
A
technique for seperating a solid product from a solvent or liqud
2
Q
what apparatus is needed for filtration under reduced pressure
A
buchner flask
buchner funnel
pressure tubing
filter paper
access to filter or vacuum pump
3
Q
recrystalysation
A
purification of solid product after filtration using hot solvent
4
Q
melting point determination
A
a pure organic substance usually has a very sharp melting point range of one or two degrees if 5the compound contains impurities it will have a large melting point range
