The mercury-in-glass or mercury thermometer is a thermometer that uses the thermal expansion and contraction of liquid mercury to indicate the temperature.

2024年11月27日 · Mercury thermometers can be used to determine body, liquid, and vapor temperature. Mercury thermometers are used in households, laboratory experiments, and industrial applications. Common household uses of mercury thermometers include fever thermometers and oven, candy, and meat thermometers.

2024年7月27日 · These thermometers work by utilizing the thermal expansion and contraction of liquid mercury, which moves through a capillary bore to indicate the temperature based on the expansion of flow or contraction of the mercury.

The “Liquid in Glass Thermometer” can measure the temperature of any fluid with a temperature up to 340°C if the liquid inside the sensor bulb is mercury. The boiling point of mercury is 356.73 °C.

We offer a large range of mercury-in-glass thermometers for general laboratory use with ranges from -35°—50°C to 30°—124°F with divisions from 0.2° to 5°.

2023年10月19日 · The main reason mercury is used in thermometers is because it has a higher coefficient of expansion than water. This means that changes in its volume with temperature are more noticeable. Additionally, mercury has a boiling point of 356.7 degrees Celsius, which is much higher than alcohol’s boiling point of 78.37 degrees Celsius.

These high precision liquid-in-glass mercury thermometers are hand blown, which bear graduations, numbers and letters etched into the glass and filled with and inert gas above the mercury column

Thermco™ Liquid-In-Glass Mercury Thermometer, ASTM Certified, ASTM 90C Liquid-in-glass mercury thermometer. Supplier: Thermco™ ACC090CFC

Gilson General-Lab Liquid-in-Glass (LiG) Thermometers meet Scientific Apparatus Makers Association (SAMA) standards. They are available in mercury-filled and spirit-filled (non-mercury) models, with partial or total immersion and a variety of °C and °F temperature ranges.

In the Liquid In Glass Thermometers (LIG) the thermally sensitive element is a liquid contained in a graduated glass envelope. The principle used to measure temperature is that of the apparent thermal expansion of the liquid. A typical liquid-in-glass thermometer is shown in the figure below.