Calcium Metal Properties (Theoretical) Molecular Weight40.07 AppearanceSilvery Melting Point839 °C Boiling Point1484 °C Density1.55 g/cm3 Solubility in H2ON/A Electrical Resistivity3.91 microhm-cm @ 0 °C Electronegativity1.0 Paulings Heat of Fusion2.23 Cal/gm mole ...
Contrary to the earlier descriptions, calcium is a white metal, the yellow coloration being due to a film of nitride; its melting point is about 760掳 C, and its density 1.85. The definite compounds which it forms directly with hydrogen and nitrogen promise useful applications in the ...
Calcium metal character Silvery white soft metal. Soluble in acid, liquid ammonia, slightly soluble in alcohol, insoluble in benzene. Melting point 850 °C(lit.) Boiling point 1484 °C(lit.) Density 1.54g /mL at 25 °C(lit.) Quality standard 99% : Appearance: Silver/Gray/Gold Gr...
Synonyms: atomic calcium | atomiccalcium | calciumshavings | calcium shot | calcium element | vivinal mca 26 | calcium metal | calcium atom | calcicat | na 1401 | lowcalciumdiet | blood-coagulation factor iv | praval Formula: Ca Molecular Weight: 40.08 EINECS: 231-179-5 ☰...
Calcium is a silvery-white metal when freshlycut, which tarnishes to a blue-gray color in air. It can alsobe found as a powder. Molecular weight=40.1; Specificgravity (H2O:1)=1.54; Boiling point=1485℃; Freezing/Melting point=849℃. Hazard Identification (based onNFPA-704 M Rating System...
In elemental form, calcium is a relatively soft, silvery metal . Like other alkaline earths, it is too reactive to be found as a free element in nature. It was not until 1808 that Sir Humphry Davy isolated it by doing electrolysis on a mixture of lime (CaO) and mercuric oxide. Calcium...
Calcium does not occur naturally in the free state, butcompoundsof the element are widely distributed. One calciumcompound, lime (calcium oxide, CaO) was extensively used by the ancients. The silvery, rather soft, lightweightmetalitself was first isolated (1808) bySir Humphry Davyafter distilling...
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The challenge is how to suppress the solubility of calcium metal from the negative electrode without making it denser than the electrolyte or raising the melting point, while minimally reducing cell voltage. The present study shows that magnesium (Mg) is an effective diluent as it lowers the ...
It occurs naturally in limestone, gypsum, and fluorite, and its compounds are used to make plaster, quicklime, Portland cement, and metallurgic and electronic materials. Atomic number 20; atomic weight 40.08; melting point 842°C; boiling point 1,484°C; specific gravity 1.54; valence 2. ...