An alcohol thermometer is a type of thermometer that uses the thermal expansion and contraction of alcohol, typically ethanol, to indicate temperature. They are a safer alternative to mercury thermometers, but not without limitations.

Here are some details about alcohol thermometers:

• Liquid: Alcohol (usually ethanol)
• Temperature Range: -10°C to 50°C
• Safer than mercury thermometers :Alcohol is not a toxic heavy metal like mercury, and it evaporates quickly at room temperature,
  Alcohol thermometer 1050

Limitations of alcohol thermometers:

• Less accurate than mercury thermometers: Mercury thermometers tend to be more accurate over a wider range of temperatures.
• Safety hazard if broken: Alcohol is flammable, so there is a potential safety risk if the thermometer breaks.

Here are some common uses for the  alcohol thermometers:

• Science labs (for educational purposes): Because they are safer than mercury thermometers, alcohol thermometers are often used in school science labs.
• Home brewing: Some home brewers use alcohol thermometers to monitor the fermentation process, which typically occurs around room temperature (within the range of an alcohol thermometer).
• Aquariums: Alcohol thermometers can be used to monitor the temperature of fish tanks, especially those that do not require high temperatures.

Safety Note: Although less hazardous than mercury thermometers, it is still important to handle alcohol thermometers with care. If you break an alcohol thermometer, clean up the spill with a damp cloth or paper towel and dispose of the waste in a chemical disposal container according to local regulations.