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207799

Potassium thiocyanate

ACS reagent, 99%

Synonym(s):

Potassium rhodanide

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About This Item

Linear Formula:
KSCN
CAS Number:
333-20-0
Molecular Weight:
97.18
EC Number:
206-370-1
UNSPSC Code:
12352302
PubChem Substance ID:
329752022
Beilstein/REAXYS Number:
3594799
MDL number:
MFCD00011413
Assay:
99%
Grade:
ACS reagent
Form:
crystalline powder
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grade

ACS reagent

Quality Segment

200

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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pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Dam. 1

supp_hazards

EUH032

Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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