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Nickel(II) oxide | NiO - PubChem

On the 10th day of exposure, more than 75% of the nickel oxide was still present in the lungs, and, even after 45 days, approx 50% of the total amt inhaled still remained. As no significant quantities of nickel oxide were found in the liver and kidney at any time after exposure, absorption seemed to be negligible during this period.

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nickel processing - Academic Dictionaries and Encyclopedias

Nickel was used industrially as an alloying metal almost 2,000 years before it was isolated and recognized as a new element.As early as 200 BC, the Chinese made substantial amounts of a white alloy from zinc and a copper-nickel ore found in Yunnan province.

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Nickel - Encyclopedia Britannica | Britannica

Nickel, chemical element, ferromagnetic metal of Group 10 (VIIIb) of the periodic table, markedly resistant to oxidation and corrosion. Silvery white, tough, and harder than iron, nickel is widely familiar because of its use in coinage but is more important as the pure metal or in the form of alloys.

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Nickel - Life Sciences bibliographies - Cite This For Me

Oct 31, 2017 · Create your citations, reference lists and bibliographies automatically using the APA, MLA, Chicago, or Harvard referencing styles. It's fast and free!

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nickel ore encyclopedia

Kids.Net.Au Encyclopedia > Nickel. However, because the ores of nickel were easily mistaken for ores of silver, any understanding of this metal and its use dates to more contemporary times. Contact US Nickel New World Encyclopedia. Jan 9, 2015 . Nickel (chemical symbol Ni, atomic number 28) is a silvery white metal .

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Nickel - Ullmann's Encyclopedia of Industrial Chemistry ...

Jun 15, 2000 · SPECIAL FEATURES. 100 Years - Excellence since 1914 - View the brochure; Ullmann's Academy; Symbols, Units and Abbreviations; Watch an interview with the Editor-in-Chief Barbara Elvers on ChemistryViews!

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Stainless Steel | Encyclopedia

About 200,000 tons of nickel-containing stainless steel is used each year by the food processing industry in North America. It is used in a variety of food handling, storing, cooking, and serving equipment — from the beginning of the food collection process through to the end.

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Nickel - 1911 Encyclopedia Britannica - Bible Encyclopedia

Entry for 'Nickel' - 1911 Encyclopedia Britannica - One of 8 Bible encyclopedias freely available, this resource contained over 40 million words in nearly 40,000 articles written by 1,500 respected authors

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nickel ore encyclopedia

Kids.Net.Au Encyclopedia > Nickel. However, because the ores of nickel were easily mistaken for ores of silver, any understanding of this metal and its use dates to more contemporary times. Contact US Nickel New World Encyclopedia. Jan 9, 2015 . Nickel (chemical symbol Ni, atomic number 28) is a silvery white metal .

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Nickel - Simple English Wikipedia, the free encyclopedia

Nickel is made from its sulfide by heating it in air. This oxidizes the sulfide to sulfur dioxide, leaving liquid nickel behind. This nickel is not yet pure and not ready for use. Pure nickel with a nickel content greater than 99% is made in an electrolytic process. In this process, the nickel is .

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Kids.Net.Au - Encyclopedia > Nickel

The isotopes of nickel range in atomic weight from 52 amu (52-Ni) to 74 amu (74-Ni). Precautions Exposure to nickel metal and soluble compounds should not exceed 0.05 mg/cm 3 in nickel equivalents per 40-hour work week. Nickel sulfide fume and dust is believed to be carcinogenic. Nickel carbonyl, [Ni(CO) 4], is an extremely toxic gas.

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Table of Contents (Stanford Encyclopedia of Philosophy)

E [jump to top]. Early Modern India, analytic philosophy in (Jonardon Ganeri) ; Eckhart, Meister — see Meister Eckhart; ecology (Sahotra Sarkar) . biodiversity (Daniel P. Faith) ; conservation biology — see conservation biology; economics Ramsey and intergenerational welfare economics — see Ramsey, Frank: and intergenerational welfare economics ...

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cobalt extraction encyclopedia

cobalt processing encyclopedia . Cobalt New World Encyclopedia. Cobalt (chemical symbol Co, atomic number 27) is a hard, lustrous, silvergray metal. It is found in various ores and is important as a trace element in the human body. It is used in the preparation of wearresistant, highstrength alloys, magnetic media, and battery electrodes.

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Nickel

Alternatively, the nickel carbonyl may be decomposed in a smaller chamber at 230 degrees Celsius to create fine powders. The resultant carbon monoxide is re-circulated through the process. The highly pure nickel produced by this process is known as carbonyl nickel. A second common form of refining involves the leaching of the metal matte ...

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Nickel | The Canadian Encyclopedia

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Nickel | Article about nickel by The Free Dictionary

Nickel is a very scarce material, which must be replaced by other less expensive and more readily available materials wherever possible. The processing of nickel ores is accompanied by the evolution of toxic gases containing SO 2 and frequently As 2 O 3. A very toxic material is CO, which is used in the nickel refining process by the carbonyl ...

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Nickel - an overview | ScienceDirect Topics

B. Mishra, in Encyclopedia of Materials: Science and Technology, 2001. Nickel is 24th in order of abundance of elements in the earth's crust. The annual world mine production of nickel is approximately 1.1 Mt, of which 35% is produced from sulfide ores and the balance from laterite (oxide) ores. The relatively more simple processing of sulfide ores is becoming more prevalent when the ore is ...

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Electrochemistry Encyclopedia -- Extracting metals from ...

In the 1950s, the Sherritt-Gordon ammonia pressure-leaching process for nickel was introduced. In this process, nickel sulfide flotation concentrates are reacted under pressure with oxygen together with ammonia, which helps to facilitate the dissolution by forming soluble nickel-ammonia complex ions.

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Nickel - an overview | ScienceDirect Topics

B. Mishra, in Encyclopedia of Materials: Science and Technology, 2001. Nickel is 24th in order of abundance of elements in the earth's crust. The annual world mine production of nickel is approximately 1.1 Mt, of which 35% is produced from sulfide ores and the balance from laterite (oxide) ores. The relatively more simple processing of sulfide ores is becoming more prevalent when the ore is ...

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Challenges in processing nickel laterite ores by flotation ...

Jun 10, 2016 · The challenges in processing nickel laterite ores using flotation process were comprehensively reviewed. Literature shows that flotation has not been successful to recover nickel from laterite ores. Nickel in laterite ores is often finely disseminated in various minerals in very fine size.

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Enhanced methods for nickel recovery from low-grade ores ...

Sep 06, 2017 · Fig. 3: Flow Sheet of the Processing of Lateritic Ores (Natural Environment Research Council, 2008) Recovery of Nickel and Processing of Magmatic Sulfide Ores. The processing of magmatic sulfide ores differs from laterites: sulfide ores are crushed in ple steps to separate the ore minerals from the gangue.

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Table of Contents (Stanford Encyclopedia of Philosophy)

E [jump to top]. Early Modern India, analytic philosophy in (Jonardon Ganeri) ; Eckhart, Meister — see Meister Eckhart; ecology (Sahotra Sarkar) . biodiversity (Daniel P. Faith) ; conservation biology — see conservation biology; economics Ramsey and intergenerational welfare economics — see Ramsey, Frank: and intergenerational welfare economics ...

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Nickel - WikiMili, The Free Encyclopedia

Nickel is a chemical element with the symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel belongs to the transition metals and is hard and ductile. Pure nickel, powdered to maximize the reactive surface area, shows a significant chemical activity,

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A Medley of Potpourri: Nickel (metal)

Mar 29, 2019 · Nickel is a silvery-white metal with a slight golden tinge that takes a high polish. It is one of only four elements that are magnetic at or near room temperature, the others being iron, cobalt and gadolinium.Its Curie temperature is 355 °C (671 °F), meaning that bulk nickel is non-magnetic above this temperature. The unit cell of nickel is a face-centered cube with the lattice parameter of ...

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Nickel subsulfide | Ni3S2 - PubChem

In contrast, nickel subsulfide was cleared rapidly from the lungs, with a half time of only about 4 days. In the case of nickel subsulfide, several other tissues (turbinates, skull, kidneys) showed its presence within the first few hours of exposure, and it was detectable in .

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Nickel - Simple English Wikipedia, the free encyclopedia

Nickel is made from its sulfide by heating it in air. This oxidizes the sulfide to sulfur dioxide, leaving liquid nickel behind. This nickel is not yet pure and not ready for use. Pure nickel with a nickel content greater than 99% is made in an electrolytic process. In this process, the nickel is .

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cobalt extraction encyclopedia

cobalt processing encyclopedia . Cobalt New World Encyclopedia. Cobalt (chemical symbol Co, atomic number 27) is a hard, lustrous, silvergray metal. It is found in various ores and is important as a trace element in the human body. It is used in the preparation of wearresistant, highstrength alloys, magnetic media, and battery electrodes.

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Nickel | Article about nickel by The Free Dictionary

Nickel is a very scarce material, which must be replaced by other less expensive and more readily available materials wherever possible. The processing of nickel ores is accompanied by the evolution of toxic gases containing SO 2 and frequently As 2 O 3. A very toxic material is CO, which is used in the nickel refining process by the carbonyl ...

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Nickel Metal: It's Properties, History, Production & Uses

The Mond (or Carbonyl) Process is the most common and efficient method to treat nickel sulfide. In this process, the sulfide is treated with hydrogen and fed into a volatilization kiln. Here it meets carbon monoxide at about 140F° (60C°) to form nickel carbonyl gas. The nickel carbonyl gas decomposes on the surface of pre-heated nickel ...

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Electrochemistry Encyclopedia -- Extracting metals from ...

In the 1950s, the Sherritt-Gordon ammonia pressure-leaching process for nickel was introduced. In this process, nickel sulfide flotation concentrates are reacted under pressure with oxygen together with ammonia, which helps to facilitate the dissolution by forming soluble nickel-ammonia complex ions.

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