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Mercury expands when heated, and the rate at which it expands can be calibrated in a thermometer to fit to a scale, which you see as the markings in the thermometer. We use mercury because of its ability to expand with just a little amount of heat. Because mercury is poisonous, we now use alcohol thermometers. Alcohol is just as good as mercury because it expands when heat is applied to it as well.
What else can I help you with?
Is mercury present in all types thermometers?
No, mercury is not present in all types of thermometers. While mercury thermometers are common, other types such as digital thermometers and infrared thermometers do not contain mercury. Mercury thermometers are being phased out due to environmental concerns.
Why teachers prefer to use alcohol thermometers than mercury?
Mercury, especially the vapour, is not good for health. As school thermometers are often broken, having a spill of mercury in the classroom is something best avoided.
What is the state of mercury in a thermometers?
Mercury in thermometers is in a liquid state, since mercury is liquid at room temperature.
What is common in fishes and thermometers?
Mercury is common in both fish and thermometers. Although nowadays they make thermometers without mercury in them.
Why are digital thermometers used these days?
Digital thermometers have replaced mercury thermometers because mercury is toxic. [Personal commentary: digital thermometers are not accurate and mercury thermometers are so how many people are being harmed by not knowing their temperature versus how many would be harmed by the mercury if accurate thermometers were still used?]
Two kinds of thermometer?
Two common types of thermometers are digital thermometers and mercury thermometers. Digital thermometers use electronic sensors to measure temperature and display it on a screen, while mercury thermometers contain mercury that expands or contracts with temperature changes. Mercury thermometers are being phased out due to environmental concerns over mercury exposure.
Why is Mercury used in old thermometers?
Mercury was used in old thermometers because mercury expands when it reaches a certain temperature, so it was a really good "gauge". Now, they stopped making thermometers with mercury as the liquid since it was very poisonous. i hope you liked the answer!
Is there mercury in thermometers today?
Most modern thermometers no longer use mercury due to its toxicity. Instead, digital thermometers, infrared thermometers, and other types of thermometer technology that do not contain mercury are widely available and recommended for safer use.
Is Mercury used in thermometers?
In normal and some medical thermometers Mercury is used. That is why you may want to consider using electric thermometers which are more commonly used. They use no mercury.
What is the purpose of mercury thermometers?
Mercury thermometers are used to measure temperature accurately. The expansion of mercury in the glass tube allows for easy visualization of temperature changes. However, due to the toxic nature of mercury, these thermometers are being phased out in favor of digital thermometers.
Why do OSHA and EPA and the AMA all discourage the use of mercury filled clinical thermometers?
When mercury filled thermometers break, the mercury is released. Mercury is toxic to people, pets and the environment. There is a long history of mercury from broken thermometers and other medical devices being improperly dealt with, or even ignored. Since there are adequate replacements for mercury thermometers, OSHA, EPA, AMA and others discourage the use of mercury thermometers and encourage their replacement with thermometers using other technologies.
What liquid mental is used for thermometers?
Mercury is used in thermometers.
