* Calcium stearate, Ca ( C < sub > 17 </ sub > H < sub > 35 </ sub > COO )< sub > 2 </ sub >

Calcium ion ( Ca < sup >++</ sup >) antagonists ( Calcium channel blockers ) are used in the treatment of chronic stable angina.

Calcium ( ) is the chemical element with symbol Ca and atomic number 20.

Calcium is essential for living organisms, in particular in cell physiology, where movement of the calcium ion Ca < sup > 2 +</ sup > into and out of the cytoplasm functions as a signal for many cellular processes.

Calcium salts are colorless from any contribution of the calcium, and ionic solutions of calcium ( Ca < sup > 2 +</ sup >) are colorless as well.

Calcium has four stable isotopes (< sup > 40 </ sup > Ca, < sup > 42 </ sup > Ca, < sup > 43 </ sup > Ca and < sup > 44 </ sup > Ca ), plus two more isotopes (< sup > 46 </ sup > Ca and < sup > 48 </ sup > Ca ) that have such long half-lives that for all practical purposes they also can be considered stable.

Calcium also has a cosmogenic isotope, radioactive < sup > 41 </ sup > Ca, which has a half-life of 103, 000 years.

* Calcium hydroxide solution ( Ca ( OH )< sub > 2 </ sub >) ( also known as limewater ) is used to detect the presence of carbon dioxide by being bubbled through a solution.

* Calcium arsenate ( Ca < sub > 3 </ sub >( AsO < sub > 4 </ sub >)< sub > 2 </ sub >) is used in insecticides.

* Calcium cyclamate ( Ca ( C < sub > 6 </ sub > H < sub > 11 </ sub > NHSO < sub > 3 </ sub >)< sub > 2 </ sub >) was used as a sweetening agent but is no longer permitted for use because of suspected cancer-causing properties.

* Calcium gluconate ( Ca ( C < sub > 6 </ sub > H < sub > 11 </ sub > O < sub > 7 </ sub >)< sub > 2 </ sub >) is used as a food additive and in vitamin pills.

* Calcium hypochlorite ( Ca ( OCl )< sub > 2 </ sub >) is used as a swimming pool disinfectant, as a bleaching agent, as an ingredient in deodorant, and in algaecide and fungicide.

* Calcium permanganate ( Ca ( MnO < sub > 4 </ sub >)< sub > 2 </ sub >) is used in liquid rocket propellant, textile production, as a water sterilizing agent and in dental procedures.

* Calcium phosphate ( Ca < sub > 3 </ sub >( PO < sub > 4 </ sub >)< sub > 2 </ sub >) is used as a supplement for animal feed, fertilizer, in commercial production for dough and yeast products, in the manufacture of glass, and in dental products.

* Calcium phosphide ( Ca < sub > 3 </ sub > P < sub > 2 </ sub >) is used in fireworks, rodenticide, torpedoes and flares.

Calcium sulfoaluminate cements are made from clinkers that include ye ' elimite ( Ca < sub > 4 </ sub >( AlO < sub > 2 </ sub >)< sub > 6 </ sub > SO < sub > 4 </ sub > or C < sub > 4 </ sub > A < sub > 3 </ sub > in Cement chemist's notation ) as a primary phase.

* Calcium Ca < sup > 2 +</ sup >

Calcium ( Ca ) is in group 2, for it contains 2 valence electrons.

* Calcium sulfide with strontium sulfide with bismuth as activator, ( Ca, Sr ) S: Bi, yields blue light with glow times up to 12 hours, red and orange are modifications of the zinc sulfide formula.

Calcium hydroxide ( slaked lime ) is used in many chemical refinery processes and is made by heating limestone at high temperature ( above 825 ° C ) and then carefully adding water to it.

Calcium is sometimes a constituent of naturally occurring amphiboles .( C.

Calcium hydroxide, Ca ( OH )< sub > 2 </ sub > is sparsely soluble in water ( 1. 5 g dm < sup >- 3 </ sup > at 25 ° C.

These invaginations in the sarcoplasma contain a host of receptors ( prostacyclin, endothelin, serotonin, muscarinic receptors, adrenergic receptors ), second messenger generators ( adenylate cyclase, Phospholipase C ), G proteins ( RhoA, G alpha ), kinases ( rho kinase-ROCK, Protein kinase C, Protein Kinase A ), ion channels ( L type Calcium channels, ATP sensitive Potassium channels, Calcium sensitive Potassium channels ) in close proximity.

Calcium supplementation as well as supplemental intake of C and E vitamins could not be shown to reduce preterm birth rates.

** Original, Original + Calcium, Country Style, Extra Vitamin C and E plus Zinc, Kids +, Home Squeezed Style, Home Squeezed Style + Calcium, Pulp-Free, Low Acid, Light, Orange Tangerine + Calcium, Orange Passion + Calcium

Calcium carbide is made in this way as it requires a large amount of energy to promote an endothermic reaction ( at temperatures of 2500 ° C ).

Lipsticks get their colors from a variety of pigments and lake dyes including, but not limited to bromo acid, D & C Red No. 21, Calcium Lake such as D & C Red 7 and D & C Red 34, and D & C Orange No. 17.

* Calcium propanoate, Ca ( C < sub > 2 </ sub > H < sub > 5 </ sub > CO < sub > 2 </ sub >)< sub > 2 </ sub >

Calcium ions bind to troponin C, causing a conformational change in the troponin-tropomyosin complex, and thus allowing myosin head binding sites on F-Actin to be exposed.

Water, High Fructose Corn Syrup, Citric Acid, Phosphoric Acid, Monopotassium Phosphate, Sodium Chloride, Gum Arabic, Ascorbic Acid ( Vitamin C ), Natural and Artificial Flavors, Calcium Chloride, Ester Gum

Calcium, with a density of 1. 55 g / cm < sup > 3 </ sup >, is the lightest of the alkaline earth metals ; magnesium ( specific gravity 1. 74 ) and beryllium ( 1. 84 ) are more dense, although lighter in atomic mass.

Calcium carbonate ( CaCO < sub > 3 </ sub >) is one of the common compounds of calcium.

* Calcium carbonate ( CaCO < sub > 3 </ sub >) is used in manufacturing cement and mortar, lime, limestone ( usually used in the steel industry ) and aids in production in the glass industry.

* Calcium carbide ( CaC < sub > 2 </ sub >) is used to make acetylene gas ( for use in acetylene torches for welding ) and in the manufacturing of plastics.

* Calcium chloride ( CaCl < sub > 2 </ sub >) is used in ice removal and dust control on dirt roads, in conditioner for concrete, as an additive in canned tomatoes, and to provide body for automobile tires.

Calcium and vitamin D decrease the risk of non-vertebral fractures in those with postmenopausal osteoporosis by approximately 18 %.

* Distal convoluted tubule: Once leaving the loop of Henle the thick ascending limb can optionally reabsorb and re increase the concentration in the nephrons .< ref > Reabsorbing and increasing the concentration is done by optionally absorbing Potassium ( K < sup >+</ sup >) and Hydrogen ( H < sup >+</ sup >) anions, while releasing water and the continued pumping out of Calcium ( Ca < sup >+</ sup >) and salt ( Na < sup >+</ sup > and Chlorine Cl < sup >-</ sup > ions ).

* Calcium dihydrogen phosphate, E341 ( i ): Ca ( H < sub > 2 </ sub > PO < sub > 4 </ sub >)< sub > 2 </ sub >

Solar-type stars show highly correlated behavior between their rotation rates and their chromospheric activity ( e. g. Calcium H & K line emission ) and coronal activity ( e. g. X-ray emission ).

* Calcium sulfate ( CaSO < sub > 4 </ sub >· 2H < sub > 2 </ sub > O ) is used as common blackboard chalk, as well as, in its hemihydrate form better known as Plaster of Paris.

* Calcium aluminoferrite, Ca < sub > 2 </ sub >( Al, Fe )< sub > 2 </ sub > O < sub > 5 </ sub >, a mineral found in cements

Calcium aluminosilicate, an aluminosilicate compound with calcium cations, most typically has formula CaAl < sub > 2 </ sub > Si < sub > 2 </ sub > O < sub > 8 </ sub >.

Calcium phosphate is the name given to a family of minerals containing calcium ions ( Ca < sup > 2 +</ sup >) together with orthophosphates ( PO < sub > 4 </ sub >< sup > 3 -</ sup >), metaphosphates or pyrophosphates ( P < sub > 2 </ sub > O < sub > 7 </ sub >< sup > 4 -</ sup >) and occasionally hydrogen or hydroxide ions.

For example Calcium chloride: CaCl < Sub > 2 </ sub >· 2H < Sub > 2 </ sub > O

* Calcium chloride ( CaCl < sub > 2 </ sub > · 2H < sub > 2 </ sub > O ) 440 mg / l