Mercury
Mercury!
Most thermometers used to contain Mercury until it was found to be toxic.
Most thermometers used to contain mercury until it was found to be toxic.
Mercury (Atomic number 80) is still used in some thermometers.
For non-electronic thermometers , you will either see a red liquid or a silver liquid. The 'Red liquid' is a coloured alcohol. The 'Silver liquid' is mercury.
mercury
Mercury is a liquid metal used in thermometers. However, it becomes a solid at -37.9 F and it can cause mercury poisoning if ingested or inhaled. Therefore, most theremometers use ethyl-alcohol or a plastic strip covered with liquid crystals (called a liquid crystal thermometer).
What is the new liquid used in athermometer than mercury?
Achohol, usually. Older thermometers use mercury, but that is too dangerous.
Mercury would be the dangerous liquid used in thermometers. Many modern thermometers are made without mercury for safety reasons, but if a thermometer breaks and you're not sure, it's better to be careful with the cleanup.
Some times red coloured liquid is used but mostly gray coloured liquid is used.