207799
Potassium thiocyanate
ACS reagent, 99%
Synonym(s):
Potassium rhodanide
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About This Item
Linear Formula:
KSCN
CAS Number:
Molecular Weight:
97.18
EC Number:
206-370-1
UNSPSC Code:
12352302
PubChem Substance ID:
Beilstein/REAXYS Number:
3594799
MDL number:
Assay:
99%
Grade:
ACS reagent
Form:
crystalline powder
grade
ACS reagent
Quality Level
assay
99%
form
crystalline powder
impurities
Iodine consuming substances, passes test, ≤0.005% insol. water
color
colorless to white
pH
5.3-8.7 (25 °C, 5%)
mp
173 °C (lit.)
anion traces
chloride (Cl-): ≤0.005%, sulfate (SO42-): ≤0.005%
cation traces
Fe: ≤2 ppm, NH4+: ≤0.003%, Na: ≤0.005%, heavy metals (as Pb): ≤5 ppm
SMILES string
[K]SC#N
InChI
1S/CHNS.K/c2-1-3;/h3H;/q;+1/p-1
InChI key
ZNNZYHKDIALBAK-UHFFFAOYSA-M
General description
Potassium thiocyanate is an inorganic potassium salt. Phase transitions in potassium thiocyanate (KSCN) have been investigated by X-ray diffraction studies. The order-disorder type transition with respect to the orientation of the thiocyanate ions was identified. Its polarized infrared spectrum has been reported. It participates in the ring-opening of aziridines. The reaction was carried out in the presence of sulfated zirconia to afford the corresponding β-aminothiocyanates.
Application
Potassium thiocyanate (KSCN) may be used for the colorimetric quantification of intracellular iron content of the superparamagnetic iron oxide (SPIO) nanoparticles.
Potassium thiocyanate may be used in the synthesis of the following:
- α-Amino nitriles from tertiary amines.
- Polysubstituted 2-aminothiazoles from vinyl azides.
- Benzisothiazol-3(2H)-one derivatives from o-bromobenzamides.
- Diaryl thioethers from aryl halides.
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signalword
Danger
Hazard Classifications
Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Dam. 1
supp_hazards
Storage Class
13 - Non Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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Synthesis of diaryl thioethers from aryl halides and potassium thiocyanate.
Hajipour AR, et al.
Applied Organometallic Chemistry, 28(12), 879-879 (2014)
Potassium Thiocyanate as Source of Cyanide for the Oxidative α-Cyanation of Tertiary Amines.
Wagner A and Ofial AR.
The Journal of Organic Chemistry, 80(5), 2848-2854 (2015)
Regioselective ring-opening of aziridines with potassium thiocyanate and thiols using sulfated zirconia as a heterogeneous recyclable catalyst.
Das B, et al.
Tetrahedron Letters, 47(5), 779-782 (2006)