Instrument expert introduction to alcohol thermometer for you

Small make up the thermometer classroom again, want to introduce today is one of the glass thermometer, alcohol thermometer, this also is one of our daily common thermometer thermometer, mainly in the laboratory, a versatile interior and industrial production. Next, we'll learn about the thermometer. Alcohol thermometer is made by using the properties of heat bilges cold shrink alcohol thermometer, under a standard atmospheric pressure, the thermometer can measure the highest temperature is 78 ℃ usually. Because the one under the condition of normal atmospheric pressure, the boiling point is 78 ℃ of alcohol. But generally thermometer tube under the condition of the pressure will be higher than 1 standard atmosphere, so there are some alcohol thermometer range will be greater than 78 & deg; C。 Cold winter in the north tend to use of alcohol thermometer to measure temperature, freezing point is - this is because the mercury 39 ℃, if under the condition of very low temperature in cold region, mercury could be because the temperature is too low and solidified, unable to normal temperature measurement. And the freezing point of alcohol is minus Under 114 ℃, can be competent in low temperature environment temperature operation, so do not worry about this problem. In addition, security as a result of alcohol is better than mercury, the ceiling and - 78 ℃ The lower limit of 114 ℃ and can completely meet the requirements of measuring body temperature and the temperature, so the alcohol thermometer relative mercury thermometer to be widely applied, but because of the precision of the alcohol thermometer is worse than mercury thermometer, so in some accuracy of temperature measurement under the condition of the demand is higher, at the same time satisfy the mercury thermometer on the lower limit of time, we should choose mercury thermometer, such as our common thermometer is the mercury thermometer. Alcohol thermometer you have a new understanding, the difference between it and mercury thermometer you have a new understanding again? If more questions want to know again, please contact the instrument.