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Merck
CN

P3011

Potassium thiocyanate

ReagentPlus®, ≥99.0%

Synonym(s):

Potassium rhodanide

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About This Item

Linear Formula:
KSCN
CAS Number:
Molecular Weight:
97.18
UNSPSC Code:
12352302
NACRES:
NA.55
PubChem Substance ID:
EC Number:
206-370-1
Beilstein/REAXYS Number:
3594799
MDL number:
Assay:
≥99.0%
Form:
powder or crystals
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Product Name

Potassium thiocyanate, ReagentPlus®, ≥99.0%

InChI key

ZNNZYHKDIALBAK-UHFFFAOYSA-M

InChI

1S/CHNS.K/c2-1-3;/h3H;/q;+1/p-1

SMILES string

[K]SC#N

product line

ReagentPlus®

assay

≥99.0%

form

powder or crystals

pH

5.3-8.7 (25 °C, 97.2 g/L)

mp

173 °C (lit.)

Quality Level

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Application

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.

General description

Potassium thiocyanate (KSCN) is a potassium salt of thiocyanate anion. Its crystalline structure has been analyzed based on polarized infrared spectral data. The inhibition efficiency of KSCN dissolved in 1M HCl against the corrosion of carbon-steel has been evaluated. It facilitates the ring opening of aziridines with high regioselectivity.

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

pictograms

CorrosionExclamation mark

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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Regioselective ring-opening of aziridines with potassium thiocyanate in the presence of β-cyclodextrin in water.
Reddy MS, et al.
Tetrahedron Letters, 46(38), 6437-6439 (2005)
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)
Synthesis of diaryl thioethers from aryl halides and potassium thiocyanate.
Hajipour AR, et al.
Applied Organometallic Chemistry, 28(12), 879-879 (2014)
Iron (II)-Promoted Synthesis of 2-Aminothiazoles via C=N Bond Formation from Vinyl Azides and Potassium Thiocyanate.
Zhang G, et al.
Advanced Synthesis & Catalysis, 357(5), 1065-1069 (2015)
Polarized infrared spectrum of potassium thiocyanate.
Jones LH.
J. Chem. Phys. , 28(6), 1234-1236 (1958)

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