| Identification | More | [Name]
SODIUM COBALTINITRITE | [CAS]
13600-98-1 | [Synonyms]
COBALTIC SODIUM NITRITE
COBALT(III) SODIUM NITRITE
COBALT SODIUM NITRITE
SODIUM COBALTINITRITE
SODIUM COBALTNITRITE
SODIUM HEXANITRITOCOBALTATE(III)
SODIUM HEXANITROCOBALTATE
SODIUM HEXANITROCOBALTATE(+3)
SODIUM HEXANITROCOBALTATE(III)
Cobaltate(3-),hexakis(nitrito-N)-,trisodium(OC-6-11)-(9CI)
Cobaltate(3-),hexakis(nitrito-N)-,trisodium,(OC-6-11)-
Cobaltate(3-),hexanitro-,trisodium
hexanitro-cobaltate(3-trisodium
Sodiumcobaltinitrite,hemihydr
sodiumnitrocobaltate(iii)
Sodiumnitrocobaltate(III)trisodiumhexanitritocobaltate
trisodium(oc-6-11)-cobaltate(3-
trisodiumhexanitritocobaltate
Trisodiumhexanitritocobaltate(3-)
Trisodiumhexanitrocobaltate | [EINECS(EC#)]
237-077-7 | [Molecular Formula]
CoN6Na3O12 | [MDL Number]
MFCD00003512 | [Molecular Weight]
403.94 | [MOL File]
13600-98-1.mol |
| Chemical Properties | Back Directory | [Appearance]
deep yellow to brown crystalline powder | [Melting point ]
220 °C (dec.)(lit.)
| [storage temp. ]
Store below +30°C. | [solubility ]
720g/l | [form ]
Solid | [color ]
Orange to orange-brown | [Odor]
Odorless | [PH]
5 (100g/l, H2O, 20℃) | [Stability:]
Stable. Contact with conbustible material may cause fire. Incompatible with strong acids, organic materials, amines. | [Water Solubility ]
Soluble in water | [Merck ]
13,8677 | [CAS DataBase Reference]
13600-98-1(CAS DataBase Reference) |
| Safety Data | Back Directory | [Hazard Codes ]
O,Xn | [Risk Statements ]
R8:Contact with combustible material may cause fire.
R36/37/38:Irritating to eyes, respiratory system and skin .
R42/43:May cause sensitization by inhalation and skin contact . | [Safety Statements ]
S17:Keep away from combustible material .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37:Wear suitable protective clothing and gloves . | [RIDADR ]
UN 1479 5.1/PG 2
| [WGK Germany ]
3
| [RTECS ]
GF9480000
| [HazardClass ]
5.1 | [PackingGroup ]
II | [HS Code ]
28429090 |
| Hazard Information | Back Directory | [Chemical Properties]
SODIUM COBALTINITRITE is deep yellow to brown crystalline powder
| [Uses]
For the detection of potassium with which it forms a slightly soluble compound. | [Uses]
Nitrosation reagent for the conversion of aromatic amines to 1,3-diaryltriazenes with excellent yield.1 | [Uses]
SODIUM COBALTINITRITE is used in the detection Potassium.
| [Preparation]
Sodiumhexanitrocobaltate(III) ("sodiumcobaltinitrite") Na3Co(N02)6
is a well-known orange solid which precipitates potassium ions from aqueous solution as
K3Co(NO2)6. It is prepared by blowing air through a mixture of cobalt(II) nitrate and
sodium nitrite solutions in the presence of acetic acid:
2[Co(H20)6]2+ +12NO2- +2CH3COOH + 1/2O2 → 2[Co(NO)2)6]3- +2CH3COO-+ 13H2O
after filtration of any precipitated potassium or ammonium salts, the sodium salt is precipitated
by the addition of ethanol. | [Purification Methods]
Dissolve the salt (ca 60g) in H2O (300mL), filter to obtain a clear solution, add 96% EtOH (250mL) with vigorous stirring. Allow the precipitate to settle for 2hours, filter it off, wash it with EtOH (4 x 25mL), twice with Et2O and dry it in air [Glemser in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol II p 1541 1965]. It forms yellow to brown crystals which are very soluble in H2O, are decomposed by acid and form an insoluble K salt. Used for estimating potassium. |
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