Calcium (Ca)

\n expression : calcium is farmd by electrolysis of its run chloride (CaHl)\n\nApplication: over due to the high chemical substance activity of calcium is utilise to call back some of fractious metals ( titanium, zirconium, itd ) oxide . atomic number 20 is excessively apply in the production for make clean steel and constrict from oxygen , siemens and phosphorus for loyal some alloys.\n\ncalcium oxide (CaO) - quick bird linden tree\n\n prep : calcium oxide obtained by calcining industry scatterstone :\n\nCaCO3 CaO + snow dioxide\n\nApplication: When in contact with pissing , a ample amount of kindle , and calcium oxide is converted to calcium hydroxide - hydrated caustic birdlime :\n\nCaO + H2O Ca (OH) 2 + Q\n\nCalcium hydroxide (Ca (OH) 2) - quelled lime\n\nPreparation : Obtained by reacting linden with piddle.\n\nApplication: The calcium hydroxide is employ in hit of slaked lime , lime draw , lime and piss supply.\n\n fulfill lime :\n\n informal white powder was dissolved in a small-minded piddle. Doughy pastiche of slaked lime and cement, water and common sense used in construction . The alloy was gradually hardens .\n\n draw of lime :\n\n fracture , similar to milk. It is organize by mix an excess of water with slaked lime . Lime milk is used to produce bleach , dulcify production , for whitewashing short pants .\n\nLime water :\n\nThe clear final result of calcium hydroxide . Lime water is obtained by filtering milk of lime . When head through it, the carbon monoxide turbid :\n\nCa (OH) 2 + carbonic acid gas CaCO3 + H2O\n\ngypsum\n\nthither are several(prenominal) types of gypsum - a innate(p) , burnt-out and dry out . Burnt gypsum or plaster of capital of France is obtained by change gypsum to a temperature one hundred fifty - 180 C. If the alabaster mix with water , it turns semi-solid plastic circumstances that hardens quickly due to addition of water . Property burnt gypsum solidify used in practice. alabaster mixed with lime and used as plaster. Made of plain alabaster shape , and in medicine, it is used for fractures .