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Mercury-in-glass thermometer for measurement of room temperature. The mercury-in-glass or mercury thermometer is a thermometer that uses the thermal expansion and contraction of liquid mercury to indicate the temperature.
Dec 18, 2023 · With changes in temperature, the mercury expands and contracts, and the temperature can be read from the scale. Mercury thermometers can be used to determine body, liquid, and vapor temperature. Mercury thermometers are used in households, laboratory experiments, and industrial applications.
Dec 15, 2020 · Oral temperature can be taken by either a digital or mercury thermometer. We’ll go over the benefits and drawbacks of mercury thermometers below. The average oral temperature reading is...
A basic mercury thermometer is a precisely crafted piece of tube-shaped glass enveloping a mercury-filled reservoir connected to an extremely thin channel, called the capillary bore, that provides a chamber the mercury from the reservoir can expand into.
Mercury-in-glass thermometers consist of a sealed glass tube calibrated in degrees Centigrade and/or degrees Fahrenheit, with a mercury-filled reservoir at one end. The mercury in the reservoir expands with increased temperature, climbing higher up the thermometer, and it contracts and recedes as the temperature falls.
The three fundamental components of a thermometer are a spirit or mercury-filled liquid that reacts to temperature changes, a glass tube to hold the liquid, and black ink to fill in the engraved scale marks with legible numbers. A sensitive thermometer is required to measure temperature.
Jun 26, 2018 · Mercury thermometers are used in: power plants and piping. chemical tanks and vats. heating and cooling equipment. breweries, canneries. bakeries, candy making. dairies, ships. wineries and distilleries. paint kettles. Phasing out Mercury Thermometers in Industrial and Laboratory Settings.
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Jun 13, 2022 · Mercury or alcohol? Not all liquid thermometers use mercury. If the line you see in your thermometer is red instead of silver, like the one in the picture here, your thermometer is filled with an alcohol-based liquid (such as ethanol). What's the difference? Mercury is toxic, although perfectly safe if it's sealed inside a thermometer.
Jan 11, 2023 · Mercury thermometers are no longer recommended because they can break and allow mercury — which is toxic — to escape. If you have a mercury thermometer, don't throw it in the trash. Contact your local trash collection program to see if there's a hazardous waste collection site in your area.
Jun 1, 2010 · Mercury thermometers have several intrinsic advantages: . stable for long periods . failure usually is visually apparent. minimal training or maintenance is required. However, mercury is a powerful neurotoxin, and the cost of cleaning a mercury spill in industry is several thousands of dollars.
