Liquid metal Liquid metal Liquid metal consists of alloys with very low melting points which form a eutectic that is liquid at room temperature. The standard metal used to be mercury, but gallium-based alloys, which are lower both in their vapor pressure at room temperature and toxicity, are being used as a replacement in various applications. A few elemental metals are liquid at or near room temperature. The most well known is mercury(Hg), which is molten above −38.8 °C (234.3 K, −37.9 °F). Others include caesium(Cs), which has a melting point of 28.5 °C (83.3 °F), rubidium (Rb)(39 °C [102 °F]), francium
Room temperature of the English Language" identifies room temperature as around , while the "Oxford English Dictionary" states that it is "conventionally taken as about ". Owing to variations in humidity and likely clothing, recommendations for summer and winter may vary; a suggested typical range for summer is , with that for winter being , although by other considerations the maximum should be below – and to avoid sick building syndrome, below . Some studies have suggested that thermal comfort preferences of men and women may differ significantly, with women on average preferring higher ambient temperatures. The World Health Organization's standard for