| Identification | More | [Name]
POTASSIUM SELENOCYANATE | [CAS]
3425-46-5 | [Synonyms]
POTASSIUM SELENOCYANATE
CHNSe·K
potassiumselenoisocyanate
Selenocyanicacid,potassiumsalt
POTASSIUM SELENOCYANATE, REAGENTPLUS, >=99%
Potassiumselenocyanate,98.5%
Selenocyanic acid potassium | [EINECS(EC#)]
222-320-1 | [Molecular Formula]
CKNSe | [MDL Number]
MFCD00011366 | [Molecular Weight]
144.08 | [MOL File]
3425-46-5.mol |
| Chemical Properties | Back Directory | [Appearance]
white to light beige crystalline powder or needles | [Melting point ]
147 °C
| [density ]
2.347 | [storage temp. ]
Poison room | [form ]
Crystalline Solid, Powder, Crystals and/or Chunks | [color ]
White to off-white | [Specific Gravity]
2.347 | [Water Solubility ]
Soluble in water, ethanol, dimethyl formamide, hexamethylphosphoramide, acetonitrile and methanol. Slightly soluble in terahydrofuran. | [Sensitive ]
Moisture Sensitive | [BRN ]
3912121 | [Exposure limits]
ACGIH: TWA 0.2 mg/m3
NIOSH: IDLH 1 mg/m3; TWA 0.2 mg/m3 | [InChI]
InChI=1S/CHNSe.K/c2-1-3;/h3H;/q;+1/p-1 | [InChIKey]
KYEKHFSRAXRJBR-UHFFFAOYSA-M | [SMILES]
C(#N)[Se][K] | [CAS DataBase Reference]
3425-46-5(CAS DataBase Reference) | [EPA Substance Registry System]
Selenocyanic acid, potassium salt (3425-46-5) |
| Safety Data | Back Directory | [Hazard Codes ]
T,N | [Risk Statements ]
R23/25:Toxic by inhalation and if swallowed .
R33:Danger of cumulative effects.
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment . | [Safety Statements ]
S20/21:When using, do not eat, drink or smoke .
S28:After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet . | [RIDADR ]
UN 3283 6.1/PG 2
| [WGK Germany ]
3
| [RTECS ]
VT1400000
| [TSCA ]
Yes | [HazardClass ]
6.1 | [PackingGroup ]
II | [HS Code ]
28429090 | [Safety Profile]
Poison by
intraperitoneal route. When heated to
decomposition it emits very toxic fumes of
NOx, CN-, K2O, and Se. See also
SELENIUM COMPOUNDS and
CYANATES. | [Toxicity]
guinea pig,LD50,skin,50mg/kg (50mg/kg),SKIN AND APPENDAGES (SKIN): "DERMATITIS, OTHER: AFTER SYSTEMIC EXPOSURE",National Technical Information Service. Vol. OTS0536978, |
| Hazard Information | Back Directory | [Description]
Potassium selenocyanate, a crystalline solid, is a reagent for the conversion of alkyl halides to nitriles and for the production of pharmaceutical intermediates. It is also used in the field of energy storage devices. | [Chemical Properties]
white to light beige crystalline powder or needles | [Uses]
Potassium selenocyanate is used to prepare triphenylphosphine selenide by reacting with triphenylphosphine. It finds application in solid state NMR of heavy-metal nuclei which results in the preparation of several mercury thiocyanate and selenocyanate compounds. | [Application]
Potassium selenocyanate can be used to:
(1) Redox-active electrolyte to enhance the performance of carbon-based supercapacitors.
(2) Starting material for the one-pot stereoselective synthesis of alkyl styryl selenides.
(3) Precursor to synthesize Cu and Ni complexes with antioxidant/anti-inflammatory activities.
(4) Selenylating agent to prepare stereoselective selenoglycosides and selenium-linked disaccharides.
| [storage]
Crystalline KSeCN is hygroscopic and decomposes with the elimination of selenium upon prolonged exposure to air. It should be stored in sealed containers. Potassium selenocyanate is a malodorous and highly toxic compound. All reactions and handling should be carried out in a well-ventilated hood.
| [Purification Methods]
Dissolve it in acetone, filter and precipitate it by adding Et2O. |
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