Cobalt(II) thiocyanate

Cobalt(II) thiocyanate is an inorganic compound with the formula Co(SCN)2. The anhydrous compound is a coordination polymer with a layered structure. The trihydrate, Co(SCN)2(H2O)3, is a isothiocyanate complex used in the cobalt thiocyanate test (or Scott test) for detecting cocaine. The test has been responsible for widespread false positives and false convictions.

Cobalt(II) thiocyanate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.019.234
EC Number
  • 221-156-8
UNII
  • InChI=1S/2CHNS.Co/c2*2-1-3;/h2*3H;/q;;+2/p-2 N
    Key: INDBQWVYFLTCFF-UHFFFAOYSA-L N
  • InChI=1/2CHNS.Co/c2*2-1-3;/h2*3H;/q;;+2/p-2
    Key: INDBQWVYFLTCFF-NUQVWONBAI
  • C(#N)[S-].C(#N)[S-].[Co+2]
Properties
C2CoN2S2
Molar mass 175.098 g/mol
Density 2.484 g/cm3
+11,090·10−6 cm3/mol
Hazards
GHS labelling:
Warning
H302, H312, H332, H410
P261, P264, P270, P271, P273, P280, P301+P312, P302+P352, P304+P312, P304+P340, P312, P322, P330, P363, P391, P501
Safety data sheet (SDS) External MSDS
Related compounds
Other anions
 Cobalt(II) cyanate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
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