was used to fill thermometers prior to the start of using mercury???

This message has been edited. Last edited by: DorianGreyed,

It went from water in 1592 (Galileo), then in 1610 with(yes) wine,then alcool(Ferdinand the II),finally 1714 D.G. Fahrenheit used the Mercury.

Many thermometers are now filled with more environmentally safe liquids than mercury. All that is required is that the fluid expand and contract with changes in temperature.

Lower temperature applications require a compound that will not freeze in the specified range. This was true even when mercury was the predominant fluid. Below -40, for example, thermometers may use substances such as toluene or pentane.