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Micro Method Determination of Boiling Point of Benzene (CAT#: STEM-PPA-0142-YJL)

Introduction

Benzene (C6H6) is the simplest organic, aromatic hydrocarbon and parent compound of numerous important aromatic compounds. Benzene is a colourless liquid with a characteristic odour and is primarily used in the production of polystyrene. It is highly toxic and is a known carcinogen; exposure to it may cause leukemia. As a result, there are strict controls on benzene emissions.<br />Benzene is a liquid at standard conditions. However, if heated it becomes a gas, and when cooled it becomes a solid.




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