The inside of the glass rod thermometer liquid can what are they?

With the continuous development of society, science and technology by leaps and bounds. In the embodiment of the thermometer in the industry is more and more various temperature control equipment and digital display thermometer, but the traditional glass rod still has its market thermometer, rely mainly on the characteristics of high accuracy and convenient to carry it. Generally speaking, any physical properties of all liquids, as long as it along with the change of temperature and drab, significant changes in, and made available to signal temperature thermometer. Therefore, usually any liquid according to the characteristics of its own, as long as in the case of necessary, can be made a thermometer. Depending on the temperature measurement of material of different and different temperature range, commonly used with kerosene thermometer thermometer, alcohol thermometer, mercury thermometer, red pen water thermometer, etc. He has the advantage of simple structure, easy to use, has relatively high accuracy and low price. So common there liquid kerosene, alcohol, mercury thermometer, red pen such as water, specific to choose which according to use environment. Also it is important to note: measuring temperature range is lower than the boiling point of liquid, higher than the freezing point; There can be no chemical reaction between liquid and the container.