What Is an Alcohol Thermometer?

Alcohol thermometers are thermometers made of the thermal expansion and contraction of alcohol. At a standard atmospheric pressure, the highest temperature that an alcohol thermometer can measure is generally 78 ° C. Because alcohol has a standard atmospheric pressure, its boiling point is 78 ° C. However, the pressure in the thermometer is generally higher than 1 standard atmospheric pressure, so some alcohol thermometers have a range greater than 78 degrees.

An alcohol thermometer is made of a glass bulb containing alcohol,

When using a temperature timer, you must first see its range (measurement range), and then its minimum

1. Shake recovery

Hold the upper end of the thermometer firmly with your hand, and shake or rotate rapidly until the alcohol column recovers.

2.Vibration recovery

With the thermometer's ball straight down, gently shake on the finger or rubber until the alcohol column recovers.

3. Hot and cold water recovery

If there is a safety bubble on the upper end of the thermometer capillary, you can stand the thermometer upright and immerse it in warm water.

Comparison of alcohol thermometer and mercury thermometer ^[3]

	Alcohol thermometer	Mercury thermometer
Operating temperature range	-110 ~ 50	-30 ~ 300
Measurable maximum temperature	78.4	357
Measurable minimum temperature	-113.5	-39
measurement accuracy	Slightly lower	Higher
Thermal expansion volume	Big	small