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Micro Method Determination of Boiling Point of Acetone (CAT#: STEM-PPA-0136-YJL)

Introduction

Acetone (CH3COCH3), also called 2-propanone or dimethyl ketone, organic solvent of industrial and chemical significance, the simplest and most important of the aliphatic (fat-derived) ketones. Pure acetone is a colourless, somewhat aromatic, flammable, mobile liquid that boils at 56.2 °C (133 °F).
Acetone is capable of dissolving many fats and resins as well as cellulose ethers, cellulose acetate, nitrocellulose, and other cellulose esters. It is used as a chemical intermediate in pharmaceuticals and as a solvent for vinyl and acrylic resins, lacquers, alkyd paints, inks, cosmetics (such as nail-polish remover), and varnishes. It is used in the preparation of paper coatings, adhesives, and heat-seal coatings and is also employed as a starting material in the synthesis of many compounds




Principle

The boiling point of a compound is the temperature at which it changes from a liquid to a gas under a certain pressure. This is a physical property often used to identify substances or to check the purity of the compound. Boiling point is the temperature at which the vapor pressure of the liquid exactly equals the pressure exerted on it, causing the liquid to "boil" or change to the gas phase. If the volume of the liquid is small, it is more advantageous to use the micro method.

Applications

Chemical industry

Procedure

1. Place the liquid is in a small test tube
2. Install the device
3. Heat
4. Remove the heat
5. Read the thermometer and record the temperature when the bubbles stop

Materials

• Sample Type: liquid
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