The chemistry of the transition metal cobalt (most common oxidation states +2 and +3) is dominated by the stability of the cobalt(II) ion which forms a wide variety of stable complexes with most ligands such as water, ammonia, chloride ion etc. property of cobalt/unit value for Co Electronegativity of Co Read more…
The non-noble metal oxides such as iron oxide, cobalt oxide, and nickel oxide are widely studied as positive electrode material in supercapacitor. What type of metal is cobalt? transition metalsCobalt is a lustrous very hard silvery metal belonging to a group called the “transition metals“. It is one of only Read more…
moderately reactive. Cobalt is a moderately reactive element. Is cobalt inert? Cobalt(III) as a Stable and Inert Mediator Ion between NTA and His6-Tagged Proteins – PMC. Is cobalt reactive or not reactive? Chemical Properties Cobalt is somewhat of a reactive element. It combines with oxygen in the air, but does Read more…
Cobalt is somewhat of a reactive element. It combines with oxygen in the air, but does not catch on fire and burn unless it is in powder form. Cobalt has the ability to react with most acids to produce hydrogen gas. However cobalt does not react with water that is Read more…
cobalt-60. cobalt-60, radioactive isotope of cobalt used in industry and medicine. What cobalt is radioactive? cobalt-60The most common radioactive form of cobalt is cobalt-60. It is produced commercially and used as a tracer and radiotherapeutic agent. It is produced in a process called activation, when materials in reactors, such as Read more…
(ii) Cobalt(II) is stable in aqueous solution but in the presence of complexing reagents it is easily oxidised. Why Cobalt 2 is more stable? (b) Cobalt (II) is stable in aqueous solution but in the presence of complexion agent, it undergoes change in oxidation state from +2 to +3 and Read more…
Cobalt(II) (cobaltous) is considered to be more stable than cobalt(III) (cobaltic). Why is cobalt III more stable than cobalt II? The cobalt(III) complex is stabilised compared to the cobalt(II) complex by the change of ligand from water to ammonia. Which is more stable Co2+ or CO3+? We know Co3+ is Read more…
Cobalt blue is lighter and less intense than the (iron-cyanide based) pigment Prussian blue. It is extremely stable and historically has been used as a coloring agent in ceramics (especially Chinese porcelain), jewelry, and paint. What is cobalt green used for? Cobalt green is a permanent, bright, bluish-green pigment. It Read more…
Cobalt, is symbol Co on the periodic table with an atomic weight of 27. While in it’s natural, raw state it’s a somewhat burnished silver colour, it is famously known for producing vibrant blues in pigments. Is cobalt a pigment? In the art of painting cobalt is mainly known as Read more…
Explanation: Cobalt glass turns blue very easily without too much work put into it. It’s used in flame tests to filter out the yellow flame caused by the presence of sodium. What is the purpose of using the blue cobalt glass? Cobalt glass (Co(s)) is a blue glass useful for Read more…