Does Cobalt Sulfate Dissolve In Water?
Cobalt Sulfate is an odorless monoclinic crystalline solid that is soluble in water, liquifying slowly around 100 °C and becoming anhydrous at 250 °C. It is slightly soluble in ethanol and very soluble in methanol.
Is cobalt sulfate soluble in water?
Acidic salts, such as COBALT SULFATE, are generally soluble in water. The resulting solutions contain moderate concentrations of hydrogen ions and have pH’s of less than 7.0.
Does cobalt II sulfate dissolve in water?
Also, this inorganic compound dissolves slowly in boiling water. Its solubility in methanol is 1.04 g/100 mL at a temperature of 18 °C. Furthermore, cobalt II sulfate is insoluble in water.
Does cobalt dissolve in water?
Chemical properties
Pure cobalt does not dissolve in water, but will dissolve (or react) with acids. It will burn when exposed to heat. The fumes may be hazardous. Compounds that are not soluble in water are cobalt carbonate and cobalt oxide.
Is cobalt sulfate aqueous?
Acidic salts, such as cobalt sulfateresulting aqueous solutions contain moderate concentrations of hydrogen ions and have pH’s of less than 7.0. They react as acids to neutralize bases.
Is cobalt sulfide soluble or insoluble in water?
Insoluble
Cobalt(II) Sulfide Properties (Theoretical)
| Compound Formula | CoS |
|---|---|
| Melting Point | 1,195° C |
| Boiling Point | 1425 °C |
| Density | 5.45 g/cm3 |
| Solubility in H2O | Insoluble |
What happens when cobalt reacts with water?
Chemical Properties
Cobalt has the ability to react with most acids to produce hydrogen gas. However cobalt does not react with water that is at room temperature. The simplest ion that cobalt forms in solution is the pink hexaaquacobalt(II) ion – [Co(H2O)6]2+.
What can dissolve cobalt?
Cobalt metal is rapidly dissolved at room temperature by nitric acid, which is not the case for Fe and Ni which both require heat. The +1 and + 4 oxidation states are uncommon. Cobalt is most commonly found in the +2 oxidation state.
Is cobalt sulfIte soluble?
Several authors report that cobalt sulfIte IS nearly Insoluble In water (5,6), insoluble In alcohol (6,7), readily soluble In sulfurous acid (5-7) and In other acids, with decomposition.
What does cobalt sulfate do?
Cobalt sulfate is used in electroplating baths, storage batteries, sympathetic inks, and as an additive to soils and animal feeds. For these purposes, treating cobalt oxide with sulfuric acid produces the cobalt sulfate, a method of manufacturing verified in Hawley’s Condensed Chemical Dictionary 16th Edition.
Is cobalt safe in water?
Nonradioactive cobalt has not been found to cause cancer in humans or in animals following exposure in the food or water.
How do you remove cobalt from water?
A number of technologies have been developed over the years to remove toxic cobalt from water, including chemical precipitation, membran sep- aration, electroflotation, ion exchange, reverse osmosis, and adsorption on activated carbon [4].
What color is cobalt in water?
pink color
Cobalt ions are hydrated in the solution and have a pink color. Adding concentrated hydrochloric acid to the solution changes the color of the solution to bluish-purple. This is because the chlorine ions force the water out of the water complex of cobalt.
Is cobalt aqueous or solid?
solid
| Cobalt | |
|---|---|
| Phase at STP | solid |
| Melting point | 1768 K (1495 °C, 2723 °F) |
| Boiling point | 3200 K (2927 °C, 5301 °F) |
| Density (near r.t. ) | 8.90 g/cm3 |
Is cobalt polar or nonpolar?
polar covalent
Cobalt and bromine, ΔEN = 0.9, polar covalent. Nickel and oxygen, ΔEN = 1.6, polar covalent.
Is cobalt carbonate soluble or insoluble in water?
insoluble
Like most transition metal carbonates, cobalt carbonate is insoluble in water, but is readily attacked by mineral acids: CoCO3 + 2 HCl + 5 H2O → [Co(H2O)6]Cl2 + CO.
Why sulfides are insoluble in water?
Due to the instability of sulfide ions, sulfide ions can undergo hydrolysis and emit hydrogen sulfide gas by producing a strong aqueous solution. Sulfides of Calcium , Barium , Magnesium , and Cesium are sparingly soluble in water.
Are all sulphides insoluble?
The sulfides of all metals except barium, calcium, magnesium, sodium, potassium, and ammonium are insoluble in water. BaS, CaS, and MgS are sparingly soluble. 7.
Does cobalt nitrate dissolve in water?
Cobalt Nitrate is a highly water soluble crystalline Cobalt source for uses compatible with nitrates and lower (acidic) pH.
Is cobalt water resistant?
Cobalt is stable in air and unaffected by water, but is slowly attacked by dilute acids.
Does cobalt react with hot water?
Water has little effect upon cobalt metal. The reaction between red hot cobalt metal and steam produces cobalt(II) oxide, CoO.
Contents