Organic 2 Review Problem 114

Organic 2 Review Problem 114 - 98 PRACTICAL ORGANIC...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
98 PRACTICAL ORGANIC CHEMISTRY granular calcium chloride, and shake occasionally. After about 20 minutes, when the liquid should be dry, filter it through a small fluted filter-paper into a ioo ml. distilling-flask attached to a water-condenser. Add some fragments of unglazed porcelain to the ethyl acetate, fit a 100° thermometer to the flask, and place the latter on a cold water-bath, which is then brought to the boil. Some ether is always formed as a by-product with the ethyl acetate, and by these means is carefully distilled off as a preliminary and separate fraction, boiling at 35-40°: if the dis- tilling-flask is rapidly heated on a previously boiling water-bath, however, the ether does not distil as a definite fraction, and the boiling-point of the distillate steadily rises without a perceptible break to that of the ethyl acetate itself. Collect the portion of the distillate boiling between 74° and 79°, rejecting a small fraction boiling immediately below this range. Yield 50 g. Ethyl acetate
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.
Ask a homework question - tutors are online