Cobalt is a chemical element in the periodic table that has the symbol Co and atomic number 27. Cobalt - Notable characteristics. Cobalt is a hard ferromagnetic silver-white element. The Curie temperature is of 1388 K with 1.6~1.7 Bohr magnetons per atom. It is frequently associated with nickel, and both are characteristic ingredients of meteoric iron. Mammals require small amounts of cobalt salts. Cobalt-60, an artificially produced radioactive isotope of cobalt, is an important radioactive tracer a ...

Including:

• Cobalt - Notable characteristics
• Cobalt - Applications
• Cobalt - Use in medicine
• Cobalt - History
• Cobalt - Biological role
• Cobalt - Occurrence
• Cobalt - Compounds
• Cobalt - Isotopes
• Cobalt - Precautions

Read more here: » Cobalt: Encyclopedia - Cobalt

See also:

Cobalt, Cobalt - Notable characteristics, Cobalt - Applications, Cobalt - Use in medicine, Cobalt - History, Cobalt - Biological role, Cobalt - Occurrence, Cobalt - Compounds, Cobalt - Isotopes, Cobalt - Precautions

Read more here: » Cobalt: Encyclopedia II - Cobalt - History

Powdered cobalt in metal form is a fire hazard. Cobalt compounds should be handled with care due to cobalt's slight toxicity. Cobalt-60 is a powerful gamma ray emitter and exposure to 60Co is therefore a cancer risk. Ingestion of 60Co will lead to incorporation of some cobalt into tissues, which is released very slowly. Cobalt-60 is a risk factor in a nuclear confrontation because neutron emissions will convert iron into this isotope. Some nuclear weapon designs could intentionally increase the amount of Cobalt-6 ...

See also:

Cobalt, Cobalt - Notable characteristics, Cobalt - Applications, Cobalt - Use in medicine, Cobalt - History, Cobalt - Biological role, Cobalt - Occurrence, Cobalt - Compounds, Cobalt - Isotopes, Cobalt - Precautions

Read more here: » Cobalt: Encyclopedia II - Cobalt - Precautions

Cobalt is a town in the district of Timiskaming, province of Ontario, Canada, with a population of 1,221, and an area of 2.11 square kilometres. Population density is 582.9 per square kilometre. It was recently designated as Ontario's most historic town by a panel of judges on the TV Ontario program "Studio 2". Cobalt is know as the Silver Capital of Canada. The history of this town dates back to 1903. It is the town that started the mineral exploration of Northern Ontario. Today the area is alive with diamond exploration. The potential for a diamond mine opening in the area is great. In 2001 the town voted overwhe ...

Read more here: » Cobalt Ontario: Encyclopedia - Cobalt Ontario

Cerulean blue is a cerulean (light blue or azure) pigment used in artistic painting. It is particularly valuable for painting atmospheric shades because of the purity of the blue (specifically the lack of greenish hues). The pigment is regarded as permanent: in oil, no other blue pigment retains color as well. Cerulean blue - History. Discovered in 1805 by Andreas Höpfner, the pigment was first marketed in 1860 as "coeruleum" by George Rowney of the United Kingdom. The primary chemical constituent is cobal ...

Including:

• Cerulean blue - History
• Cerulean blue - Other uses
• Cerulean blue - Chemical name

Read more here: » Cerulean blue: Encyclopedia - Cerulean blue

Austenite (γ-iron; hard) Bainite Martensite Cementite (iron carbide; Fe3C) Ferrite (α-iron; soft) Pearlite (88% ferrite, 12% cementite) Carbon steel (up to 2.1% carbon) Stainless steel (alloy with chromium) Tool steel (very hard; heat-treated) Cast iron (>2.1% carbon) Wrought iron (almost no carbon) Cementite or iron carbide is a chemical compound with the formula Fe3C, and an orthorhombic crystal structure. It is a hard, brittle material, normally classified as a ceramic in its pure ...

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Propan-1-ol is a primary alcohol with the formula CH3CH2CH2OH. It is also known as 1-propanol, 1-propyl alcohol n-propyl alcohol, or simply propanol. It is used as a solvent in the pharmaceutical industry, and for resins and cellulose esters. It is formed naturally in small amounts during many fermentation processes. Propan-1-ol - Chemical properties. 1-Propanol shows the normal reactions of a primary alcohol. Thus it can be converted to alkyl hal ...

Including:

• Propan-1-ol - Chemical properties
• Propan-1-ol - Preparation
• Propan-1-ol - History

Read more here: » Propan-1-ol: Encyclopedia - Propan-1-ol

The term vitamin B12 (or B12 for short) is used in two different ways. In a broader sense it refers to a group of Co-containing compounds known as cobalamins - cyanocobalamin (an artefact formed as a result of the use of cyanide in the purification procedures), hydroxocobalamin and the two coenzyme forms of B12, methylcobalamin (MeB12) and 5-deoxyadenosylcobalamin (adenosylcobalamin - AdoB12Including:

• Cyanocobalamin - Structure
• Cyanocobalamin - Synthesis
• Cyanocobalamin - Functions
• Cyanocobalamin - History as a treatment for anemia
• Cyanocobalamin - Deficiency
• Cyanocobalamin - Sources

Read more here: » Cyanocobalamin: Encyclopedia - Cyanocobalamin

Gansu (Simplified: 甘肃; Traditional: 甘肅; Hanyu Pinyin: Gānsù; Wade-Giles: Kan-su, or modified as Kan-suh) is a province located in the northwest of the People's Republic of China. It lies between Qinghai, Inner Mongolia, and the Huangtu Plateaus, and borders Mongolia to the north. The Huang He river passes the southern part of the province. It has a population of approximately 25 million (1997) and has a large concentration of Hui Chinese. The capital of the province is Lanz ...

Including:

• Gansu - Administration
• Gansu - History
• Gansu - Geography
• Gansu - Economy
• Gansu - Demographics
• Gansu - Culture
• Gansu - Tourism
• Gansu - The Jiayuguan Pass of the Great Wall
• Gansu - Mogao Grottoes
• Gansu - Silk Road And Dunhuang City
• Gansu - Bingling Temple
• Gansu - Labrang Monastery
• Gansu - Miscellaneous topics
• Gansu - Postage Stamps
• Gansu - Education
• Gansu - Colleges and universities
• Gansu - Natural resources
• Gansu - Land
• Gansu - Minerals
• Gansu - Energy
• Gansu - Flora and Fauna

Read more here: » Gansu: Encyclopedia - Gansu

The University of Saskatchewan (U of S) is the largest education institution in the Canadian province of Saskatchewan. It is located in the city of Saskatoon. A satellite view of the campus can be seen on Google maps. University of Saskatchewan - History. University of Saskatchewan - Beginnings. The University was created on April 3, 1907 by a provincial statute known as the University Act. It provided for a publicly funded, yet independent institution to be created for t ...

Including:

• University of Saskatchewan - History
• University of Saskatchewan - Beginnings
• University of Saskatchewan - First Students
• University of Saskatchewan - Establishment of Colleges
• University of Saskatchewan - Later development
• University of Saskatchewan - Distinguished Research
• University of Saskatchewan - Campus Life
• University of Saskatchewan - Alumni
• University of Saskatchewan - Notable Faculty and Researchers
• University of Saskatchewan - Notable Students
• University of Saskatchewan - University Administration
• University of Saskatchewan - University Presidents
• University of Saskatchewan - University Chancellors
• University of Saskatchewan - Partner Universities

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The history of radioactive weaponry may be traced to a 1943 memo to Brigadier General Leslie Groves of the Manhattan Project. Transmitting a report entitled, "Use of Radioactive Materials as a Military Weapon," the memo states: As a gas warfare instrument the material would ... be inhaled by personnel. The amount necessary to cause death to a person inhaling the material is extremely small. It has been estimated that one millionth of a gram accumulating in a person's body would be fatal. There are no known methods of ...

See also:

Radiological weapon, Radiological weapon - History

Read more here: » Radiological weapon: Encyclopedia II - Radiological weapon - History

Radiosurgery started with Dr. Lars Leksell from the Karolinska Institute of Stockholm, Sweden, in 1949, in a joint development with Bjorn Larsson, a radiobiologist from Uppsala University. Leksell initially used heavy particles, protons from a to irradiate brain tumor lesions. In 1968, they developed the "gamma knife", a new device exclusively for radiosurgery, which consisted of radioactive sources of Cobalt-60 placed in a kind of helmet with central channels for irradiation, using gamma rays. In the last version of this device, 201 sources of radioactive cobalt direct gamma radiation to the center of a helme ...

See also:

Radiosurgery, Radiosurgery - Definition and applications, Radiosurgery - History, Radiosurgery - How it works, Radiosurgery - Radiosurgery of brain tumors, Radiosurgery - Source

Read more here: » Radiosurgery: Encyclopedia II - Radiosurgery - History

In 1829 New York State required the labeling of all containers of poisonous substances. The skull and crossbones symbol appears to have been used for that purpose since the 1850s. Previously a variety of motifs had been used, including the Danish "+ + +" and drawings of skeletons. In the 1870s Americans began using bright cobalt bottles with a variety of raised bumps and designs to indicate poison, but by the 1880s the skull and cross bones had become ubiquit ...

See also:

Skull and crossbones, Skull and crossbones - History of the symbol, Skull and crossbones - Uses

Read more here: » Skull and crossbones: Encyclopedia II - Skull and crossbones - History of the symbol

In 1829 New York State required the labeling of all containers of poisonous substances. The skull and crossbones symbol appears to have been used for that purpose since the 1850s. Previously a variety of motifs had been used, including the Danish "+ + +" and drawings of skeletons. In the 1870s Americans began using bright cobalt bottles with a variety of raised bumps and designs (to enable easy recognition in the dark) to indicate poison, but by the 1880s the skull and cross bones had become ubiquit ...

See also:

Skull and crossbones, Skull and crossbones - History of the symbol, Skull and crossbones - Uses

Read more here: » Skull and crossbones: Encyclopedia II - Skull and crossbones - History of the symbol

Uganda has substantial natural resources, including fertile soils, regular rainfall, and sizable mineral deposits of copper and cobalt. Agriculture is the most important sector of the economy, employing over 80% of the work force, with coffee accounting for the bulk of export revenues. Since 1986, the government - with the support of foreign countries and international agencies - has acted to rehabilitate an economy decimated during the regime of Idi Amin and subsequent civil war. Stabilising measures have included currency reform, raising p ...

See also:

Uganda, Uganda - History, Uganda - Politics, Uganda - Geography, Uganda - Economy, Uganda - Demographics, Uganda - Religion, Uganda - AIDS-prevention, Uganda - Culture, Uganda - Human rights

Read more here: » Uganda: Encyclopedia II - Uganda - Economy

Cobalt(II)-stannate ...

See also:

Cerulean blue, Cerulean blue - History, Cerulean blue - Other uses, Cerulean blue - Chemical name

Read more here: » Cerulean blue: Encyclopedia II - Cerulean blue - Chemical name

Propan-1-ol is a major constituent of fusel oil, a by-product formed from certain amino acids when potatoes or grains are fermented to produce ethanol. This is no longer a significant source of the material. Propan-1-ol is manufactured by catalytic hydrogenation of propionaldehyde. The propionaldehyde is itself produced via the oxo process, by hydroformylation of ethylene using carbon monoxide and hydrogen in the presence of a catalyst such as cobalt octacarbonyl or a rhodium complex. (1) H2C=CH2 + C ...

See also:

Propan-1-ol, Propan-1-ol - Chemical properties, Propan-1-ol - Preparation, Propan-1-ol - History

Read more here: » Propan-1-ol: Encyclopedia II - Propan-1-ol - Preparation

Industrially, propionic acid is usually made from the air oxidation of propionaldehyde. In the presence of cobalt or manganese ions, this reaction proceeds rapidly even at mild termperatures. Usually, the industrial process is carried out at 40-50°C, and is represented by the chemical equation CH3CH2CHO + ½ O2 → CH3CH2COOH Large amounts of propionic acid were once produced as a byproduct of acetic acid manufacture, but changes in the way acetic acid is made ...

See also:

Propionic acid, Propionic acid - History, Propionic acid - Properties, Propionic acid - Production, Propionic acid - Uses, Propionic acid - Safety

Read more here: » Propionic acid: Encyclopedia II - Propionic acid - Production

Terpyridine is a tridentate ligand and forms a complex with a transition metal ion in the same way as other polypyridine compounds, such as 2,2'-bipyridine and 1,10-phenanthroline. In particular, to six-coordinated metal ions, such as cobalt or iron, two terpyridines can be coordinated. These kinds of complexes, called bisterpyridine complexes, do not have any enantiomers, so they differ from bipyridine complexes. The steric structures of bisterpyridin ...

See also:

Terpyridine, Terpyridine - History, Terpyridine - Synthesis, Terpyridine - Properties, Terpyridine - Related compounds

Read more here: » Terpyridine: Encyclopedia II - Terpyridine - Properties

Ontario Northland also operates bus services and parcel between Toronto (from Yorkdale GO Terminal and locations in Central and Northern Ontario. Some locations served by bus service: Toronto Hearst Kapuskasing Barrie Huntsville Cochrane Bracebridge Gravenhurst Orillia Parry Sound Temagami North Bay Cobalt Kirkland Lake Timmins ONTR operates the following bus type ...

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Ontario Northland Railway, Ontario Northland Railway - History 1902-1946, Ontario Northland Railway - History 1946-2005, Ontario Northland Railway - Passenger trains, Ontario Northland Railway - Buses, Ontario Northland Railway - Freight services, Ontario Northland Railway - Locomotives and rolling stock, Ontario Northland Railway - Ontario Northland Transportation Commission

Read more here: » Ontario Northland Railway: Encyclopedia II - Ontario Northland Railway - Buses