d031b852_ध_रस_यन___क__स_च____व_क_प_ड_य___Source_and_description
[Chemical name] mercury [Chemical formula] Hg [Common or alternative name] quicksilver [Source and description] 
Becoming difficult to find due to fears of toxicity and environmental contamination. Old mercury switches can be found in many thermostats. Old-style thermometers contain mercury. Fluorescent light tubes contain a small amount of mercury though it can be difficult to extract. Specialty occult stores may carry it as quicksilver.
सरलता से उपलब्ध रसायनों की सूची - विकिपीडिया