What is cobalt II chloride hexahydrate used for?
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Cobalt (II) chloride hexahydrate is a metal used with other metals to make metal alloys. This substance can be found in spray paints, enamels, wood stains and paints, as well as bricks and cement and metal tools. It is also commonly fond in keys, jewelry and orthopedic and dental implants.
How does ammonia react with cobalt chloride?
Cobalt(II) Chloride with Ammonia Here, ammonia (NH3) is added to cobalt(II) chloride (CoCl2). The result is a blue-green precipitate. This is an ancillary version.
What happens when HCl is added to cocl2?
When hydrochloric acid is added, the added chloride ions shift the equilibrium position in favour of blue [CoCl4]2- ions and water. As more chloride ions are added, formation of the [CoCl4]2- ions is favored, as this changes the concentration of chloride ions in solution.
What is the reaction between cobalt chloride and water?
The white solid turns blue in the presence of water. A similar reversible reaction takes place between anhydrous cobalt(II) chloride (which is blue) and water to produce hydrated cobalt(II) chloride (which is pink). Heating pink hydrated cobalt(II) chloride makes it turn blue.
How does cobalt react with NaOH?
Here, sodium hydroxide (NaOH) is added to cobalt(II) chloride (CoCl2). The result is a red solution and a blue-green precipitate.
When cobalt II chloride hexahydrate is dissolved in water what color is the solution?
Depending on how much water you add, you can form an aqueous solution of the hexahydrate. This solution will contain hydrated Co2+ ions in the form [Co(H2O)6]2+ , and it will be light purple in color as well.
What is the formula of cobalt II chloride hexahydrate?
Cobalt(II) Chloride Hexahydrate Properties (Theoretical)
| Compound Formula | Cl2CoH12O6 |
|---|---|
| Molecular Weight | 237.93 |
| Appearance | red to dark purple crystals |
| Melting Point | N/A |
| Boiling Point | N/A |
What does cobalt react with?
Cobalt is one of the three metals that are ferromagnetic at room temperature. It dissolves slowly in dilute mineral acids, does not combine directly with either hydrogen or nitrogen, but will combine, on heating, with carbon, phosphorus, or sulfur.
What is cobalt (II) chloride hexahydrate?
Cobalt (II) chloride hexahydrate is a metal used with other metals to make metal alloys. Because cobalt and nickel can be found in many of the same metal products, allergies to both metals can develop. To prevent this, consider wearing jewelry made of sterling silver or other precious metals, rather than costume jewelry.
What are the side effects of cobalt chloride?
Reactions to cobalt chloride have included anorexia, nausea and vomiting, diarrea, precordial pain, cardiomyopathy, flushing of the face and extremities, skin rashes, tinnitus, tempoary nerve deafness, renal injury, diffuse thyroid enlargement, and hypothyroidism. in large doses it may reduce the production of erythrocytes.
What percentage of cobalt chloride hydrolyzes in aqueous solution?
O’Neil, M.J. (ed.). The Merck Index – An Encyclopedia of Chemicals, Drugs, and Biologicals. Cambridge, UK: Royal Society of Chemistry, 2013., p. 435 Cobaltous chloride hydrolyzes in aqueous solution to extent of 0.11% at 0.062 molar and 0.17% at 0.031 molar.
What is the half life of cobalt chloride in rats?
Following a single oral dose /of cobalt chloride /, the blood cobalt concentration-time curve /in male fischer 344 rats/ was triphasic, peaked at 3.2 hr, and had an absorptive half-life of 0.9 hr, an elimination phase half-life of 3.9 hr, and a terminal elimination half-life of 22.9 hr.