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
• Linear Formula: Hg(SCN)₂
• CAS Number: 592-85-8
• Molecular Weight: 316.75
• Beilstein/REAXYS Number: 3561344
• EC Number: 209-773-0
• MDL number: MFCD00011039
• UNSPSC Code: 12161600
• PubChem Substance ID: 57654384
• NACRES: NA.22

Properties

• 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

Description

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.

Quality

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

Safety Information

• pictograms: GHS06,GHS08,GHS09
• signalword: Danger
• hcodes: H300 + H310 + H330,H373,H410
• pcodes: P262 - P264 - P273 - P280 - P302 + P352 + P310 - P304 + P340 + P310
• 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: EUH032
• Storage Class: 6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• wgk_germany: WGK 3
• flash_point_f: 248.0 °F - closed cup
• flash_point_c: 120 °C - closed cup