- Melting point:
- 850 °C(lit.)
- Boiling point:
- 1484 °C(lit.)
- 1.54 g/mL at 25 °C(lit.)
- storage temp.
- water-free area
- Specific Gravity
- 3.5 μΩ-cm, 20°C
- Water Solubility
- reacts with H2O, alcohols, dilute acids to evolve H2 [MER06]
- air sensitive, moisture sensitive
- Stable, but reacts with water to release hydrogen and produce calcium hydroxide. Incompatible with strong oxidizing agents, alcohols, moisture.
- CAS DataBase Reference
- 7440-70-2(CAS DataBase Reference)
- EPA Substance Registry System
- Calcium (7440-70-2)
- Risk and Safety Statements
|RIDADR||UN 1401 4.3/PG 2
Calcium price More Price(40)
|Manufacturer||Product number||Product description||CAS number||Packaging||Price||Updated||Buy|
|Sigma-Aldrich||215147||Calcium granular, 99%||7440-70-2||100g||$86.4||2019-12-02||Buy|
|Sigma-Aldrich||215147||Calcium granular, 99%||7440-70-2||5g||$245||2019-12-02||Buy|
|Alfa Aesar||000875||Calcium granules, redistilled, -6 mesh, 99.5% (metals basis)||7440-70-2||1kg||$292||2018-11-16||Buy|
|Alfa Aesar||000875||Calcium granules, redistilled, -6 mesh, 99.5% (metals basis)||7440-70-2||250g||$92.9||2018-11-16||Buy|
|Strem Chemicals||20-0074||Calcium, crystalline, dendritic (99.99%)||7440-70-2||5g||$333||2019-12-02||Buy|
Calcium Chemical Properties,Uses,Production
Chemical Propertiessoftish silver-white metal
Chemical PropertiesCalcium is a silvery-white metal when freshly cut, which tarnishes to a blue-gray color in air. It can also be found as a powder.
UsesReducing agent for production of less common metals; alloying agent to increase strength and corrosion resistance in lead, to improve mechanical and electrical properties in aluminum; refining agent to remove bismuth from lead. In metallurgy as scavenger to deoxidize, desulfurize and degas steel and cast iron; to control non-metallic inclusions in steel; to promote uniform microstructure in gray iron. As anode material in thermal batteries; as "getter" for oxygen and nitrogen.
UsesCalcium is used as a deoxidizer for copper,steel, and beryllium in metallurgy; to hardenlead for bearing; and in making alloys.
DefinitionAlkaline-earth element of atomic number 20, group IIA of the periodic table. Aw 40.08. Valence 2. Six stable isotopes.
General DescriptionA silvery, soft metal that turns grayish white on exposure to air. Used in metallurgy.
Air & Water ReactionsPyrophoric ignites in air when finely divided, then burns with crimson flame [Merck 11th ed. 1989]. Calcium rapidly decomposes in water, the heat of reaction is sufficient that hydrolysis released hydrogen may ignite [Lab. Gov. Chemist 1966].
Reactivity ProfileBoron trifluoride reacts with incandescence when heated with alkali metals or alkaline earth metals except magnesium [Merck 11th ed. 1989]. Calcium reacts violently with acids [Lab. Govt. Chemist 1965]. Finely divided Calcium burns spontaneously in chlorine at elevated temperatures [Mellor 3:637, 638, 651 1946-47]. Finely divided or massive Calcium burns spontaneously in fluorine at ordinary temperatures. Calcium is incompatible with metal oxides, alkali metal hydroxides, chlorine fluorides, dinitrogen tetraoxide, and sulfur(with sulfur reacts explosively when ignited) [Bretherick, 5th Ed., 1995].
HazardEvolves hydrogen with moisture. Flammable in finely divided state. Fire and explosion hazard when heated or on contact with strong oxidizing agents.
Health HazardContact of dusts with skin or eyes can causeburns. It reacts with moisture on skin to formcaustic hydroxide, which may cause sucha burn. Fumes from burning calcium are astrong irritant to the eyes, skin, and mucousmembranes.
Health HazardContact with eyes or skin produces caustic burns.
Fire HazardProduce flammable gases on contact with water. May ignite on contact with water or moist air. Some react vigorously or explosively on contact with water. May be ignited by heat, sparks or flames. May re-ignite after fire is extinguished. Some are transported in highly flammable liquids. Runoff may create fire or explosion hazard.
Potential ExposureCalcium is used as a raw material for aluminum, copper, and lead alloys.
CarcinogenicityNo studies on the carcinogenicity of elemental calcium were noted. The carcinogenicity of calcium chromate is attributed solely to intracellular soluble chromium.
Purification MethodsClean the metal by washing it with ether to remove adhering paraffin, file the surface in an argon-filled glove box, and wash it with ethanol containing 2% of conc HCl. Then wash it with dry ethanol, dry it in a vacuum and store it under pure argon [Addison et al. J Chem Soc 3868 1962].
IncompatibilitiesForms hydrogen gas on contact with air; finely divided material or dust may ignite spontaneously. A strong reducing agent; reacts violently with water, acids, strong oxidizers (such as chlorine, bromine, and fluorine), alkaline carbonates, dinitrogen tetroxide; halogenated hydrocarbons; lead chloride, halogens, alkaline hydroxides, oxygen, silicon, sulfur, chlorine, fluorine, chlorine trifluoride, and many other substances. Reacts with water to produce flammable hydrogen gas
Calcium Preparation Products And Raw materials
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- Calcium, chemical symbol Ca, atomic number 20, and relative atomic mass (i.e., atomic weight) 40.078, is the third element of ....
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- The occurrence and preparation of Calcium
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View Lastest Price from Calcium manufacturers
|Image||Release date||Product||Price||Min. Order||Purity||Supply Ability||Manufacturer|
|US $1.00 / KG||1KG||Min98% HPLC||g/kg/ton||Career Henan Chemical Co|
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