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Calcium
Calcium structure
CAS No.
7440-70-2
Chemical Name:
Calcium
Synonyms
Praval;NA 1401;Calcicat;calcium(0);Calcium shot;Calcium atom;CALCIUM METAL;Calcium, 99.5%;LOWCALCIUMDIET;Atomic calcium
CBNumber:
CB6854193
Molecular Formula:
Ca
Formula Weight:
40.08
MOL File:
7440-70-2.mol

Calcium Properties

Melting point:
850 °C(lit.)
Boiling point:
1484 °C(lit.)
Density 
1.54 g/mL at 25 °C(lit.)
RTECS 
EV8040000
storage temp. 
water-free area
form 
pieces
color 
Silver-white
Specific Gravity
1.54
Resistivity
3.5 μΩ-cm, 20°C
Water Solubility 
reacts with H2O, alcohols, dilute acids to evolve H2 [MER06]
Sensitive 
air sensitive, moisture sensitive
Merck 
13,1644
BRN 
4241647
Stability:
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)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS02
Signal word  Danger
Hazard statements  H261
Precautionary statements  P223-P280a-P370+P378c-P402+P404-P501a-P231+P232-P422
Hazard Codes  F
Risk Statements  15
Safety Statements  8-24/25-43
RIDADR  UN 1401 4.3/PG 2
WGK Germany  1
TSCA  Yes
HazardClass  4.3
PackingGroup  II
HS Code  28051200
NFPA 704
1
3 2
W

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 Properties

softish silver-white metal

Chemical Properties

Calcium 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.

Uses

Reducing 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.

Uses

Calcium is used as a deoxidizer for copper,steel, and beryllium in metallurgy; to hardenlead for bearing; and in making alloys.

Definition

Alkaline-earth element of atomic number 20, group IIA of the periodic table. Aw 40.08. Valence 2. Six stable isotopes.

General Description

A silvery, soft metal that turns grayish white on exposure to air. Used in metallurgy.

Air & Water Reactions

Pyrophoric 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 Profile

Boron 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].

Hazard

Evolves hydrogen with moisture. Flammable in finely divided state. Fire and explosion hazard when heated or on contact with strong oxidizing agents.

Health Hazard

Contact 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 Hazard

Contact with eyes or skin produces caustic burns.

Fire Hazard

Produce 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 Exposure

Calcium is used as a raw material for aluminum, copper, and lead alloys.

Carcinogenicity

No studies on the carcinogenicity of elemental calcium were noted. The carcinogenicity of calcium chromate is attributed solely to intracellular soluble chromium.

Purification Methods

Clean 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].

Incompatibilities

Forms 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

Raw materials

Preparation Products


Calcium Suppliers

Global( 124)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Chemwill Asia Co.,Ltd.
86-21-51086038
86-21-51861608 [email protected]6.com;[email protected];[email protected];[email protected] CHINA 23978 58
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 [email protected] CHINA 28235 58
Hubei xin bonus chemical co. LTD
86-13657291602
027-59338440 [email protected] CHINA 23048 58
Henan tianfu chemical co. LTD
0371-55170695
[email protected] CHINA 20537 58
career henan chemical co
0086-371-86658258
0086-371-86658258 [email protected] CHINA 27514 58
Mainchem Co., Ltd. +86-0592-6210733
+86-0592-6210733 [email protected] CHINA 32445 55
J & K SCIENTIFIC LTD. 400-666-7788 010-82848833-
86-10-82849933 [email protected];[email protected] China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 400-660-8290 21-61259100-
86-21-61259102 [email protected] China 40268 62
Alfa Aesar 400-610-6006
021-67582001/03/05 [email protected] China 30163 84
Beijing dtftchem Technology Co., Ltd. 13651141086
86 (10) 60270825 [email protected] China 3393 62

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View Lastest Price from Calcium manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2020-02-04 Calcium
7440-70-2
US $1.00 / KG 1KG Min98% HPLC g/kg/ton Career Henan Chemical Co

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