Cobalt poisoning - Wikipedia

Cobalt poisoning is intoxication caused by excessive levels of cobalt in the body. Cobalt is an essential element for health in animals in minute amounts as a component of Vitamin B 12.A deficiency of cobalt, which is very rare, is also potentially lethal, leading to pernicious anemia.. Exposure to cobalt metal dust is most common in the fabrication of tungsten carbide.

Spray Deposition of n -type Cobalt-Doped CuO Thin Films ...

The effects of cobalt (Co)-doping (0 at%, 2 at%, 4 at%, 6 at%, and 10 at%) on the structural, morphological, electrical, and optical characteristics of spray-deposited nanostructured copper oxide (CuO) thin films were investigated. X-ray diffraction patterns revealed that the crystallite size is subject to a constant reduction with an increase in the doping concentration.

Cobalt - Wikipedia

Cobalt is a weakly reducing metal that is protected from oxidation by a passivating oxide film. It is attacked by halogens and sulfur. Heating in oxygen produces Co 3 O 4 which loses oxygen at 900 °C (1,650 °F) to give the monoxide CoO.

CATALYTIC ASPECTS OF NON-NOBLE METALS ON …

Cobalt powder (1.6μm dia.) was tested as a catalyst. It was postulated that passive film and re-precipitated film were formed on the cobalt catalyst in alkaline stabilized sodium borohydride solutions. To study the effect of the oxide films on the catalytic activity of the cobalt, ethylenediaminetetra acid (EDTA) was added to the electrolyte and

Synthesis and characterization of cobalt doped nickel ...

Cobalt (Co) doped nickel oxide (NiO) thin films were deposited on glass substrates at a temperature of about 400 °C by spray pyrolysis method. The effect of Co doping concentration on structural, optical and compositional properties of NiO thin films was investigated.

Cobalt, Ontario - Wikipedia

Cobalt is a town in the district of Timiskaming, in the province of Ontario, Canada, with a population of 1,118 according to the Canada 2016 Census.. In the early 1900s, the area was heavily mined for silver; the silver ore also contained cobalt.By 1910, the community was the fourth highest producer of silver in the world. Mining declined significantly by the 1930s, together with the local ...

A study of electroless displacement of cobalt by copper ...

A study of electroless displacement of cobalt by copper during the electrochemical preparation of Cu–Co alloy multilayers by pulse ... concentration close to the working electrode, the current ... pared to the total mass and that the surface film is rigid. A Nanoscope II atomic force microscope was used to

Wide range of applications High purity product Nickel ...

Wide range of applications High purity product Nickel Sulfamate "Nickel Sulfamate" is a highly precise and quality surface treatment chemical which utilized the outstanding plating characteristic. We have been accepting trust of the quality for over the years.

Dichlorocobalt | Cl2Co - PubChem

Cobaltous chloride was formerly used (1960s) as a foam stabilizer in beer(4), but this use no longer permitted(5). Cobaltous chloride has recently (post-2010) been identified as a blood doping agent in racehorses(6) that may release the compound to the environment through urine and feces.

Cobalt(II) chloride | CoCl2 - PubChem

The concentration of 500 mg/L cobalt in 24 hr showed a significant difference in the amount of hemoglobin, number of red blood cells, and hematocrit level as compared with the control group. The concentration of 100 mg/L cobalt in 48 hr did not show a significant difference in comparison with the control group (p>0.05).

Structure and magnetism of cobalt-doped ZnO thin films ...

Figure 1 shows the cobalt concentration in the film as a function of target composition for films deposited under different conditions. The cobalt concentration is greater in the films than the prepared targets. Similar results of transition metal enrichment in doped ZnO films grown by PLD have been reported [30, 43, 44].

Cobalt hydroxide film deposited on glassy carbon electrode ...

To obtain the most optimum response conditions for electrocatalytic oxidation of hydroquinone on cobalt hydroxide film electrode in the alkaline solution, the effect of enrichment time, enrichment potential and Co(II) ion concentration on the response of cobalt hydroxide film …

1985, Volume, Issue Nov-1985

depositing the thin cobalt film directly on top of a newly deposited chromium film approximately 250 nm thick. The coercivity of very thin cobalt films prepared in this manner is suitably high, but decreases rapidly as the film thickness increases. At a thickness adequate for most recording signal

Investigation of Cobalt Deposition Behavior with Zinc ...

The first worked by decreasing the growth rate of the oxide film. This effect appeared most conspicuously in the outer oxide layer under normal water chemistry conditions. The second mechanism worked by reducing the cobalt concentration in the oxide film.

Lithium nickel manganese cobalt oxides - Wikipedia

Lithium nickel manganese cobalt oxides (abbreviated Li-NMC, LNMC, NMC or NCM) are mixed oxides of lithium, nickel, manganese and cobalt.They have the general formula LiNi x Mn y Co z O 2.The most important representatives have a composition with x + y + z = 1 and are closely related to lithium cobalt(III) oxide (LiCoO 2) and have a layered structure like these.. Nowadays, NMCs they are among ...

USB1 - Cobalt salicidation method on a silicon ...

A method of forming a cobalt germanosilicide film is described. According to the present invention a silicon germanium alloy is formed on a substrate. A cobalt film is then formed on the silicon germanium alloy. The substrate is then heated to a temperature of greater than 850° C. for a period of time less than 20 seconds to form a cobalt germanium silicide film.

Synthesis of cobalt stearate as oxidant additive for oxo ...

After biodegradation, the maximum weight decreased by 23% in the oxo-biodegradable polyethylene film with a cobalt stearate concentration of 0.2% and after heating at a temperature of 75 °C for 10 days, and only 0.69% in the same film after irradiation UV light for 10 days.

A Cobalt Film Electrode for Nitrite Determination in ...

In this study a cobalt film electrodeposited on a copper disk (Ø=3.1 mm) was tested as electrode to measure nitrite ions in raw water. This electrode was able to determine the nitrite ions concentration in nondeaerated synthetic media and in natural water.

MAGNETIC EXCHAGE INTERACTION IN COBALT SAMARIUM …

concentration on the magnetic properties namely coercivity of the films. The cobalt samarium films deposited at lower samarium concentration showed lower coercivity and higher loop squareness shown in Figure-2(a). The coercivity of the films increased rapidly with increasing samarium concentration and was maximized at

The role of cobalt doping in tuning the band gap, surface ...

First published on 18th July 2019. The work presented here reported the effect of doping cobalt (Co) in ZnO thin films. The thin films were prepared using the spray pyrolysis technique with 0, 1, 5 and 10 wt% cobalt doping concentrations to study the morphological, optical …

Pigment Volume Concentration and its Role in Color | Just ...

Dec 20, 2016· Pigment Volume Concentration (PVC) Looking past refractive index as a main cause, a more promising possibility is that the changes are driven by differences in the Pigment Volume Concentration (PVC), defined as the ratio of the volume of the pigment divided by the volume of both pigment and binder together:

What is the formula for a cobalt ion - Answers

May 15, 2010· The formula for cobalt acetate is Co(C2H3O2)2. According to the formula, there are four carbon atoms in each formula unit. When an ion is in parentheses, you multiply the subscripts inside the ...

Effect of Concentration on the Optical and Solid State ...

Thin films of Cobalt(II) Oxide were deposited from equimolar concentrations of Cobalt Chloride, and Hexamethylene-tetramine on clean glass substrates using the Aqueous Chemical Growth method in order to determine the effect of pre-cursor concentration on their optical and solid state properties.

Electrochemical behavior and Li Diffusion study of LiCoO ...

Electrochemical behavior and Li Diffusion study of LiCoO 2 thin film electrodes prepared by PLD H. XIA a, Y.S. MENG b, L. LUa, c, G. CEDER a, b a Advanced Materials for Micro- and Nano- System, Singapore-MIT Alliance, 4 Engineering Drive

Cobalt Silicide Formation and Patterning Technology

film. Once the film has cooled the end result is a tensile film. The silicon doping concentration works to slow the silicidation process thus shifting the temperatures at which the different phases form. [2] The thennal stability of the cobalt silicide varies with the dopant species in the substrate and whether the


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