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Do thermometers contain mercury?

Some do, some have other liquids instead, such as colored alcohol.Some do, some have other liquids instead, such as colored alcohol.Some do, some have other liquids instead, such as colored alcohol.Some do, some have other liquids instead, such as colored alcohol.


What is the working principle of a liquid in glass thermometer?

A liquid-in-glass thermometer works based on the principle of thermal expansion. As temperature increases, the liquid inside the thermometer expands and rises in the calibrated glass tube. The level of the liquid indicates the temperature which corresponds with a specific scale on the thermometer.


Do pool thermometers contain mercury?

Some pool thermometers do contain mercury, but there are alternatives available that use different substances like alcohol or digital sensors. If you are concerned about the presence of mercury in a pool thermometer, look for options that explicitly state they are mercury-free.


Why do schools generally use red alcohol thermometers and not mercury?

Alcohol also reacts to heat by expanding and contracting and is much safer to use than mercury which is a neurotoxin that can make you very sick if the thermometer were to break and you got in contact with it.


Difference between clinical and an alcohol thermometer?

A clinical thermometer is designed for measuring human body temperature with high accuracy and precision, typically ranging from 35°C to 42°C. An alcohol thermometer, on the other hand, measures a wider range of temperatures and is commonly used for household and industrial purposes due to its versatility and affordability. Additionally, alcohol thermometers use colored alcohol, like ethanol or isopropanol, rather than mercury for safety reasons.

Related Questions

What is the name of the liquid in which thermometer is dipped?

The liquid in which a thermometer is typically dipped is called mercury. Mercury is commonly used in old-style thermometers, but newer thermometers may use alcohol or other liquids instead.


Does a Kelvin thermometer contain mercury or alcohol?

There is no mechanical difference between a kelvin thermometer and any other kind so I think it would be the same as other thermometers i.e. Alcohol (because it is not as dangerous as mercury)


What type of Thermometer is most likely to contain alcohol?

A mercury-in-glass thermometer is most likely to contain alcohol. However, due to safety concerns, many modern thermometers use alcohol-based solutions or other materials instead of mercury.


Do thermometers contain mercury?

Some do, some have other liquids instead, such as colored alcohol.Some do, some have other liquids instead, such as colored alcohol.Some do, some have other liquids instead, such as colored alcohol.Some do, some have other liquids instead, such as colored alcohol.


Why is mercury used in clinical thermometer and not laboratory thermometer?

Mercury is no longer used much in thermometers due to the poisonous compounds that it forms. When I grew up, in Chemistry at school and at the doctors there were mercury thermometers and alcohol thermometers.


What is a non mercury thermometers?

A non-mercury thermometer is a thermometer that does not contain mercury as the temperature-sensing liquid. Instead, it may use alcohol, galinstan, or other materials to measure temperature. These alternatives are considered safer for environmental and health reasons compared to mercury thermometers.


Why mercury is used in thermometers instead of other liquids?

-- Mercury doesn't stick to glass and 'wet' the inside surface of the little tube, like some other liquids would. -- Mercury remains liquid (doesn't freeze) until it gets down to around -40°, so it's useful in a thermometer over a wider range of temperatures than most other liquids are.


What liquid can be used in a thermometer?

Ethanol-filled thermometers are used in preference to mercury for meteorological measurements of minimum temperatures and can be used down to −70 °C (-94 °F). The physical limitation of the ability of a thermometer to measure low temperature is the freezing point of the liquid used.Alcohol


Examples of liquids other than water?

Alcohol, mercury, gasoline, sulfuric acid, paint and VERY cold oxygen.


What is in the glass thermometer?

Red or blue - alcohol. Silver - mercury. There are some other possibilities as well (Galinstan, for instance), but those are by far the most likely.


Why did they change the liquid in the thermometers?

A thermometer (from the Greek θερμός (thermo) meaning "warm" and meter, "to measure") is a device that measures temperature or temperature gradient using a variety of different principles. A thermometer has two important elements: the temperature sensor (e.g. the bulb on a mercury thermometer) in which some physical change occurs with temperature, plus some means of converting this physical change into a value (e.g. the scale on a mercury thermometer). Thermometers increasingly use electronic means to provide a digital display or input to a computer.


Why don't you make thermometers with water?

You can make a thermometer with water, and in fact Galileo invented a rudimentary water thermometer in 1593. However, using other materials such as alcohol or mercury allows you to measure a greater variation in temperature.