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Names | |
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IUPAC name
Sodium hexanitritocobaltate(III)
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Other names
Sodium cobaltinitrite
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Identifiers | |
3D model (
JSmol)
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ChemSpider | |
ECHA InfoCard | 100.033.692 |
EC Number |
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PubChem
CID
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UNII | |
CompTox Dashboard (
EPA)
|
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Properties | |
Na3[Co(NO2)6 | |
Molar mass | 403.933 g·mol−1 |
Appearance | Yellow crystals |
Density | 2.565 g/cm3 |
Hazards | |
GHS labelling: [1] | |
![]() ![]() ![]() | |
Danger | |
H272, H315, H317, H319, H334, H335, H351 | |
Safety data sheet (SDS) | JT Baker MSDS |
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
|
Sodium hexanitritocobaltate(III) is inorganic compound with the formula Na3[Co(NO2)6. The anion of this yellow-coloured salt consists of the transition metal nitrite complex [Co(NO2)63−. It was a reagent for the qualitative test for potassium and ammonium ions. [2]
The compound is prepared by oxidation of cobalt(II) salts in the presence of sodium nitrite: [3]
Although the sodium cobaltinitrite is soluble in water, it forms the basis of a quantitative determination of potassium, thallium, and ammonium ions. Under the recommended reaction conditions the insoluble double salt, K2Na[Co(NO2)6]·H2O is precipitated and weighed. [4][ page needed] In geochemical analysis, sodium cobaltinitrite is used to distinguish alkali feldspars from plagioclase feldspars in thin section. [5]
![]() | |
![]() | |
Names | |
---|---|
IUPAC name
Sodium hexanitritocobaltate(III)
| |
Other names
Sodium cobaltinitrite
| |
Identifiers | |
3D model (
JSmol)
|
|
ChemSpider | |
ECHA InfoCard | 100.033.692 |
EC Number |
|
PubChem
CID
|
|
UNII | |
CompTox Dashboard (
EPA)
|
|
| |
| |
Properties | |
Na3[Co(NO2)6 | |
Molar mass | 403.933 g·mol−1 |
Appearance | Yellow crystals |
Density | 2.565 g/cm3 |
Hazards | |
GHS labelling: [1] | |
![]() ![]() ![]() | |
Danger | |
H272, H315, H317, H319, H334, H335, H351 | |
Safety data sheet (SDS) | JT Baker MSDS |
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
|
Sodium hexanitritocobaltate(III) is inorganic compound with the formula Na3[Co(NO2)6. The anion of this yellow-coloured salt consists of the transition metal nitrite complex [Co(NO2)63−. It was a reagent for the qualitative test for potassium and ammonium ions. [2]
The compound is prepared by oxidation of cobalt(II) salts in the presence of sodium nitrite: [3]
Although the sodium cobaltinitrite is soluble in water, it forms the basis of a quantitative determination of potassium, thallium, and ammonium ions. Under the recommended reaction conditions the insoluble double salt, K2Na[Co(NO2)6]·H2O is precipitated and weighed. [4][ page needed] In geochemical analysis, sodium cobaltinitrite is used to distinguish alkali feldspars from plagioclase feldspars in thin section. [5]