his_cal_8_grace


 * __↑Sir Humphrey Davy__**


 * Discovered By:** Sir Humphrey Davy
 * Discovered At:** England
 * Discovered When:** 1808


 * Origin of Name:** From a latin name "Calx" meaning Lime


 * He made Calcium compounds to pure Calcium by electrolysis. He electrolysised a mixture of lime and mercuric oxide (HgO).


 * Calcium metal wasn't separated to a pure substance until 1808.
 * Compounds like lime (CaO & calcium oxide) were named by the Romans in the first century Calx.
 * Written records from 975 AD says that plaster of paris (calcium sulphate, CaSO4, dehydrated gypsum) is useful for settling broken bones.
 * He did this by the electrolysis of a mixture of lime and mercuric oxide (HgO). Calcium metal was not available in large scale until the beginning of the 20th century.
 * Calcium as a metal wasn't availiable in large amounts until the begining of the 20th century.