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The business development and customer services for ikman.lk are managed by local staff within Sri Lanka. [3] The ikman.lk website is considered to be the first classifieds portal in the country to offer content in English as well as the country's main Sinhala and Tamil languages. [3] [4] [5] [6]
Vacuum distillation A Kugelrohr ( German for "ball tube") is a short-path vacuum distillation apparatus [ 1 ] : 150 typically used to distill relatively small amounts of compounds with high boiling points (usually greater than 300 °C) under greatly reduced pressure.
Distillation setup using a retort and tube condenser, from a 1921 book. [5] The simplest type of condenser is a straight tube, cooled only by the surrounding air. The tube is held in a vertical or oblique position, and the vapor is fed through the upper end. The heat of condensation is carried away by convection.
A Soxhlet extractor is a piece of laboratory apparatus [1] invented in 1879 by Franz von Soxhlet. [2] It was originally designed for the extraction of a lipid from a solid material.
The reflux system in a typical industrial distillation column Reflux is a technique involving the condensation of vapors and the return of this condensate to the system from which it originated. It is used in industrial [ 1 ] and laboratory [ 2 ] distillations .
An overhead condenser is a heat exchange equipment used for condensing the mixture leaving the top of the column. Either cooling water or air is used as a cooling agent. An overhead accumulator is a horizontal pressure vessel containing the condensed mixture. Pumps can be used to control the reflux to the column.
The lower end of a reflux condenser fits into the top of the cylinder. Immediately below the joint between the condenser and the cylinder is a sloping side-arm that joins the cylinder to a reaction flask. The lower end of the side-arm turns sharply downward, so that the side-arm is connected to the reaction flask by a vertical tube.
Figure 1: Fractional distillation apparatus using a Liebig condenser. Vigreux column in a laboratory setup. A laboratory fractionating column is a piece of glassware used to separate vaporized mixtures of liquid compounds with close volatility.