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Wiki User
∙ 13y agoAlcohol is used to measure lower temperatures because it has a lower freezing point. At the same time, it also has a lower boiling point, hence when measuring high temperatures, mercury (which has a higher boiling point) is used instead.
Wiki User
∙ 9y agoMercury has small values for the linear expansion, the variation of volume with temperature is not important. It is easy to read the temperature. But mercury is toxic.
Alcohol is cheaper and not toxic.
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Is alcohol in alcohol thermometers toxic?
the alcohol in thermometers are either non-potable alcohol or mercury and if you drank either then you would be sick. so yes it is sort of toxic.
Compare the expansion of mercury with alcohol?
Mercury expands more evenly than alcohol. This is why thermometers that contain mercury are more accurate than those that contain alcohol. However, alcohol freezes at a temperature much lower than mercury, so it is better used in thermometers in extreme cold conditions.
what is the man invented the mercury and alcohol thermometers?
Daniel Gabriel Fahrenheit
Does a Kelvin thermometer contain mercury or alcohol?
There is no mechanical difference between a kelvin thermometer and any other kind so I think it would be the same as other thermometers i.e. Alcohol (because it is not as dangerous as mercury)
What two substances are used in the thermometer's glass tube?
MERCURY is commonly used in thermometers designed for medical and elevated temperatures, and ALCOHOL (with a coloured dye) is used in medical and very low temperature thermometers. Both these use glass tubes. Very high temperature thermometers contain Gallium, which is a liquid at room temperature, in a quartz tube.
Why are thermometers made with alcohol instead of water?
thermometers are made out of mercury and alcohol because mercury expands when it is heated
What are used in thermometers?
Mercury and alcohol
Why alcohol used in laboratory thermometers instead of mercury?
mercury is toxic but alcohol is not and alcohol is cheaper than mercury
Which instrument is often filled with mercury or colored water or alcohol?
Thermometers are the instrument that is often filled with mercury, colored water, or alcohol. Most early thermometers were made with mercury.
What fluids can be used to measure temperature?
The most common are mercury and alcohol. Mercury is being phased out because it is toxic. Alcohol thermometers are used to replace the old mercury thermometers.
How are mercury thermometers used today?
Mercury thermometers are rarely used, except in lab thermometers. For human use, they have been replaced by dyed alcohol glass thermometers, or electronic digital thermometers.
Why must mercury be used in thermometers?
It must not. Mercury is very toxic. It's safer to use colored alcohol in thermometers.
What is used in thermometers now instead of mercury?
Alcohol
Why is Mercury used in thermometers instead of alcohol?
Mercury thermometers have advantages over alcohol thermometers. The liquid is visible making the results easy to read. It expands at a regular interval. It measures temperature quickly and accurately.
Is alcohol in alcohol thermometers toxic?
the alcohol in thermometers are either non-potable alcohol or mercury and if you drank either then you would be sick. so yes it is sort of toxic.
Compare the expansion of mercury with alcohol?
Mercury expands more evenly than alcohol. This is why thermometers that contain mercury are more accurate than those that contain alcohol. However, alcohol freezes at a temperature much lower than mercury, so it is better used in thermometers in extreme cold conditions.
What is the red stuff in meat thermometers?
The red stuff in most thermometers is alcohol. The silver stuff is Mercury.
