![]() It is less expensive than a mercury thermometer.It has a greater value of temperature coefficient of expansion than a mercury thermometer.It is less toxic than mercury thermometer and hence high on safety factor for human and environment.It is suitable to measure low temperatures because of its freezing point is low.The temperature range it can measure falls between -112 degree Celsius (low freezing temperature) and 78 degree Celsius (high boiling point).Īlcohol Thermometer Advantages and Disadvantages Advantages.It generally ethanol, toluene, kerosene or other liquid, depending on the manufacturers and range of temperature required.Since alcohol is colourless, it is dyed, which gives it a bright colour.Mercury is difficult to clean, and it can contaminate the surface on which it leaked.It is highly toxic for living beings and the environment if the bulb breaks and mercury leaks out.Mercury does not wet the wall of the thermometer, which means that results can be highly accurate.It is smaller in size as compared to alcohol one. ![]()
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