What is an alcohol thermometer?
Alcohol is a thermometer that uses expansion and alcohol contraction in response to temperature changes for temperature measurement. A number of different alcohols can be used depending on the environment where the thermometer is used, with ethanol being the most common. This type of thermometer is very popular because it is non -toxic, unlike mercury thermometer in glass and the content does not pose a threat to human health or the environment if the thermometer is broken.
Because alcohols are clear, the dye is usually added to alcohol. Red is a common choice for dye, although other colors can also be used and the thermometer pad is usually colored to provide contrast, so that the meniscus of fluid will be clearly visible, allowing precise temperature readings. The thermometer can also be placed in a housing that protects it from impact and impact temperature and to make it easier to handle it.
The thermometers of alcohol work by closing a narrow capillary attached to the bulb of the reserve fluid. As the temperature warms, alcohol expands and the capillary rises. As the temperature drops, the liquid is downloading and the capillary decreases. Markers along the capillaries indicate a temperature, while people read the temperature by finding a marker that corresponds to the meniscus of liquid inside the capillary. This may be difficult to relate to a narrow capillary, because the thin alcohol fiber may seem almost invisible to the dye.
The earliest prototype of the alcoholic thermometer seems to be within the 16th century. It is one of the many devices that can be used to measure temperature and alcohol thermometers use a number of laboratories and scientific organizations for temperature values. Different types of alcohol are used for Different conditions; For example, ethanol alcohol thermometer cannot work very well at temperatures too far above the boiling point of ethanol.
As with thermometer of mercury-in-glass it is easy to distort reading thermometer's thermometer heatingit or cooling a bulb that holds a reserve fluid. For this reason, it is important to avoid handling the bulb when working with this type of thermometer and prevent exposure to the flask to the extreme temperature as they try to get accurate reading. For example, an alcohol thermometer used to measure internal temperature should not be placed in a sunny location in the house or in the area next to the stove or heating.