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HomeProduct name listSODIUM COBALTINITRITE

SODIUM COBALTINITRITE

Synonym(s):Cobalt(III) sodium nitrite, Sodium cobaltinitrite;Sodium cobaltnitrite;Sodium hexanitritocobaltate(III);Sodium hexanitrocobaltate(III)

  • CAS NO.:13600-98-1
  • Empirical Formula: CoN6NaO12(-2)
  • Molecular Weight: 357.95
  • MDL number: MFCD00003512
  • EINECS: 237-077-7
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2023-04-23 13:52:06
SODIUM COBALTINITRITE Structural

What is SODIUM COBALTINITRITE?

Chemical properties

SODIUM COBALTINITRITE is deep yellow to brown crystalline powder

The Uses of SODIUM COBALTINITRITE

Nitrosation reagent for the conversion of aromatic amines to 1,3-diaryltriazenes with excellent yield.1

The Uses of SODIUM COBALTINITRITE

For the detection of potassium with which it forms a slightly soluble compound.

The Uses of SODIUM COBALTINITRITE

SODIUM COBALTINITRITE is used in the detection Potassium.

What are the applications of Application

Sodium hexanitrocobaltate(III) is a nitrosation reagent

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.

Properties of SODIUM COBALTINITRITE

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℃)
Water Solubility  Soluble in water
Merck  13,8677
Stability: Stable. Contact with conbustible material may cause fire. Incompatible with strong acids, organic materials, amines.
CAS DataBase Reference 13600-98-1(CAS DataBase Reference)

Safety information for SODIUM COBALTINITRITE

Signal word Danger
Pictogram(s)
ghs
Flame Over Circle
Oxidizers
GHS03
ghs
Exclamation Mark
Irritant
GHS07
ghs
Health Hazard
GHS08
GHS Hazard Statements H272:Oxidising liquids;Oxidising solids
H315:Skin corrosion/irritation
H317:Sensitisation, Skin
H319:Serious eye damage/eye irritation
H334:Sensitisation, respiratory
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
H351:Carcinogenicity
Precautionary Statement Codes P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352:IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P308+P313:IF exposed or concerned: Get medical advice/attention.

Computed Descriptors for SODIUM COBALTINITRITE

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