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Merck
CN

221988

Ammonium thiocyanate

ACS reagent, ≥97.5%

Synonym(s):

Ammonium rhodanide

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About This Item

Linear Formula:
NH4SCN
CAS Number:
1762-95-4
Molecular Weight:
76.12
NACRES:
NB.24
PubChem Substance ID:
329752288
eCl@ss:
38060604
UNSPSC Code:
12352300
EC Number:
217-175-6
MDL number:
MFCD00011428
Beilstein/REAXYS Number:
3595135

Key Documents

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Product Name

Ammonium thiocyanate, ACS reagent, ≥97.5%

InChI key

SOIFLUNRINLCBN-UHFFFAOYSA-N

InChI

1S/CHNS.H3N/c2-1-3;/h3H;1H3

SMILES string

N.SC#N

grade

ACS reagent

assay

≥97.5%

form

crystals

impurities

≤0.004 meq/g I2 consumers
≤0.005% insolubles

ign. residue

≤0.025%

pH

4.5-6.0 (25 °C, 5% in H2O)

mp

152-154 °C (lit.)

anion traces

chloride (Cl-): ≤0.005%
sulfate (SO42-): ≤0.005%

cation traces

Fe: ≤3 ppm
heavy metals (as Pb): ≤5 ppm

Quality Level

200

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Application

Ammonium thiocyanate may be used in the synthesis of the following:
  • Substituted 2-aminothiazole derivatives by reacting with -halo ketone carbonyls in the presence of N-methylimidazole.5
  • Thiiranes from corresponding oxiranes in the presence of lithium tetrafluoroborate.
Applied in the formation of novel two-dimensional Cd-SCN coordination solids with unusual and tailorable, checkerboard- or herringbone-patterned structures these structures are important steps toward technologically useful materials.

General description

Ammonium thiocyanate is an inorganic salt commonly used for thiocyanation of organic compounds.

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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Certificates of Analysis (COA)

Lot/Batch Number
MKCZ5568
MKCZ1022
MKCX9233
MKCV4788
MKCT4683

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Schiff-Base Metal (II) Complexes as New Catalysts in the Efficient, Mild and Regioselective Conversion of 1, 2-Epoxyethanes to 2-Hydroxyethyl Thiocyanates with Ammonium Thiocyanate.
Sharghi H and Nasseri MA.
Bulletin of the Chemical Society of Japan, 76(1), 137-142 (2003)
Conversion of epoxides to thiiranes catalyzed with TiO(TFA)2 and TiCl3(OTf) in the presence of ammonium thiocyanate or thiourea.
Iranpoor N and Zeynizadeh B.
Synthetic Communications, 28(21), 3913-3918 (1998)
Thiocyanation of aromatic and heteroaromatic compounds using ammonium thiocyanate and I2O5.
Wu J, et al.
Synthetic Communications, 38(14), 2367-2373 (2008)
NBS or DEAD as effective reagents in α-thiocyanation of enolizable ketones with ammonium thiocyanate.
Reddy BVS, et al.
Tetrahedron Letters, 52(13), 1432-1435 (2011)
Regioselective thiocyanation of aromatic and heteroaromatic compounds using ammonium thiocyanate and oxone.
Wu G, et al.
Tetrahedron Letters, 46(35), 5831-5834 (2005)
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