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Merck
CN

M4128

Mercury(II) thiocyanate

96.5-103.5% (titration)

Synonym(s):

Mercuric isothiocyanate, Mercuric sulfocyanide, Mercuric thiocyanate, Mercury di(thiocyanate), Thiocyanic acid, mercury(II) salt

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About This Item

Linear Formula:
Hg(SCN)2
CAS Number:
Molecular Weight:
316.75
UNSPSC Code:
12161600
NACRES:
NA.22
PubChem Substance ID:
EC Number:
209-773-0
Beilstein/REAXYS Number:
3561344
MDL number:
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Quality Segment

assay

96.5-103.5% (titration)

reaction suitability

core: mercury, reagent type: catalyst

mp

165 °C (dec.) (lit.)

density

3.71 g/mL at 25 °C (lit.)

SMILES string

N#CS[Hg]SC#N

InChI

1S/2CHNS.Hg/c2*2-1-3;/h2*3H;/q;;+2/p-2

InChI key

GBZANUMDJPCQHY-UHFFFAOYSA-L

General description

Mercury(II) thiocyanate is the coordination complex of Hg2+ and the thiocyanate ion(SCN-). It is primary used as catalyst for the addition of thiocyanic acid (HSCN) across the triple bond of a variety of alkynes and as a precursor to synthesize other thiocyanate complexes. Within analytical chemistry, it is also used for the colorimetric determination of chloride ions in water.

Application

Mercury(II) thiocyanate can be employed as a reactant for the synthesis of:

  • Polymeric mercury(II) coordination complexes with various derivatives of 4,4′-bipyridine ligands via the branched tube method.
  • Manganese mercury thiocyanate (MMTC), an organometallic optical single-crystal.
  • Heterotrinuclear copper(II)–mercury(II)–copper(II)complexes possessing antibacterial and antifungal activities.

Analysis Note

Contains a small amount of mercurous thiocyanate insoluble in dilute acid.

Disclaimer

For U.S. Customers: Contains mercury; Do not place in trash - dispose according to local, state, or federal laws.


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Danger

Hazard Classifications

Acute Tox. 1 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - STOT RE 2

supp_hazards

Storage Class

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk

WGK 3

flash_point_f

248.0 °F - closed cup

flash_point_c

120 °C - closed cup



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