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Cuprous potassium cyanide

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Name

Cuprous potassium cyanide

EINECS 237-192-2
CAS No. 13682-73-0 Density 4 g/mL at 25 °C
PSA 47.58000 LogP 0.03106
Solubility N/A Melting Point 290 °C
Formula C2CuKN2 Boiling Point 25.7oC at 760 mmHg
Molecular Weight 154.68 Flash Point N/A
Transport Information N/A Appearance N/A
Safety 22-36/37/39-45 Risk Codes 20/21-28
Molecular Structure Molecular Structure of 13682-73-0 (Cuprous potassium cyanide) Hazard Symbols Very
Synonyms

Cuprate(1-),bis(cyano-C)-, potassium;Cuprate(1-), bis(cyano-kC)-, potassium (9CI);Cuprate(1-), dicyano-, potassium(8CI);Potassium cyanocuprate(I) (KCu(CN)2) (6CI);Potassium dicyanocuprate(I)(7CI);Copper(I) potassium cyanide;Potassiumcopper(I) cyanide;Potassium dicyanocuprate(1-);

Article Data 3

Cuprous potassium cyanide Synthetic route

potassium cyanide

copper(l) cyanide

A

potassium tetracyanocuprate (I)

B

13682-73-0

Potassium dicyanocuprate

Conditions
ConditionsYield
In water addn. of Cu-salt to soln. of cyanide (stoich. excess.); solvent evapn. (crystn.); detd. by NMR spectroscopy;

potassium cyanide

copper(l) cyanide

13682-73-0

Potassium dicyanocuprate

Conditions
ConditionsYield
In water soln. of KCN in H2O added slowly to suspn. of CuCN in H2O; heated to 60°C while stirring until solids dissolved; filtered while hot; allowed to evaporate slowly at room temp. for 2 days;

potassium cyanide

copper(II) choride dihydrate

13682-73-0

Potassium dicyanocuprate

Conditions
ConditionsYield
In water addn. of aq. soln. of KCN to soln. of copper compd.; slow evapn., isolation of crystals, repeated recrystns.;

mercury(II) nitrate

13682-73-0

Potassium dicyanocuprate

mercury(II) cyanide

Conditions
ConditionsYield
With potassium cyanide; Dowex 50 W-X8 In water Hg salt was treated with cation-exchanger, prepd. Hg-form resin was washed with water, dispersed in water and stirred with cyano-complex for 5min at 17°C; various yields at various conditions; not isolated, detected polarometrically;63.7%
372-47-4

3-Fluoropyridine

iron(II) chloride tetrahydrate

13682-73-0

Potassium dicyanocuprate

Fe(3-Fpy)2(Cu(3-Fpy)1.5(cyanide)2)2

Conditions
ConditionsYield
In methanol; water (Ar); slow diffusion of soln. of iron compd. and pyridine deriv. in 1:1 methanol/ water and soln. of copper compd. in 1:1 methanol/water for 4 wks; isolation of crystals, elem. anal.;35%
626-60-8

3-Chloropyridine

iron(II) chloride tetrahydrate

13682-73-0

Potassium dicyanocuprate

Fe(3-Clpy)2(Cu(3-Clpy)(cyanide)2)2

Fe(3-Clpy)2(Cu(3-Clpy)(cyanide)2)2

Conditions
ConditionsYield
In methanol; water (Ar); slow diffusion of soln. of iron compd. and pyridine deriv. in 1:1 methanol/water and soln. of copper compd. in 1:1 methanol/water for 4 wks; isolation of crystals, manual separation, elem. anal.;A 35%
B 30%
1120-90-7

3-iodopyridine

iron(II) chloride tetrahydrate

13682-73-0

Potassium dicyanocuprate

Fe(3-Ipy)2(Cu(3-Ipy)(cyanide)2)2

Conditions
ConditionsYield
In methanol; water (Ar); slow diffusion of soln. of iron compd. and pyridine deriv. in 1:1 methanol/water and soln. of copper compd. in 1:1 methanol/water for 4 wks; isolation of crystals, elem. anal.;25%
626-55-1

3-Bromopyridine

iron(II) chloride tetrahydrate

13682-73-0

Potassium dicyanocuprate

Fe(3-Brpy)2(Cu(3-Brpy)(cyanide)2)2

Conditions
ConditionsYield
In methanol; water (Ar); slow diffusion of soln. of iron compd. and pyridine deriv. in 1:1 methanol/water and soln. of copper compd. in 1:1 methanol/water for 4 wks; isolation of crystals, elem. anal.;25%

N(C2H5)4(1+)*HB(C3H3N2)3WS3(CuCl)3(1-)=(N(C2H5)4)[HB(C3N2H3)3WS3(CuCl)3]

13682-73-0

Potassium dicyanocuprate

68-12-2, 33513-42-7

N,N-dimethyl-formamide

75-05-8

acetonitrile

K(1+)*2HB(C3H3N2)3(1-)*2W(6+)*6S(2-)*10Cu(1+)*9CN(1-)*6HCON(CH3)2*2CH3CN=K[HBC9N6H9WS3Cu3C3H7NO]2Cu4C9N9*4C3H7NO*2C2H3N

Conditions
ConditionsYield
17%
53338-48-0

4-(5-phenyl-1,3,4-oxadiazole-2-yl)benzenamine

13682-73-0

Potassium dicyanocuprate

1874-33-5

4-(5-phenyl-1,3,4-oxadiazol-2-yl)benzonitrile

Conditions
ConditionsYield
(i) aq. HCl, NaNO2, (ii) /BRN= 5410671/; Multistep reaction;

Cuprous potassium cyanide Chemical Properties

Product Name: Cuprous potassium cyanide (CAS NO.13682-73-0)

Molecular formula: C2CuKN2                                 
Molecular weight: 154.68
Apperance: A white crystalline solid
Melting Point: 290 °C
Density: 4 g/mL at 25 °C
EINECS: 237-192-2
H-Bond Donor: 0
H-Bond Acceptor: 4
Structure Descriptors of Cuprous potassium cyanide (CAS NO.13682-73-0):
  IUPAC Name: potassium copper(1+) dicyanide
  Canonical SMILES: [C-]#N.[C-]#N.[K+].[Cu+]
  InChI: InChI=1S/2CN.Cu.K/c2*1-2;;/q2*-1;2*+1 
  InChIKey: IVDPWEKOUUEEBD-UHFFFAOYSA-N

Cuprous potassium cyanide Uses

 Cuprous potassium cyanide (CAS NO.13682-73-0) is used as chemical reagent, pharmaceutical intermediate.

Cuprous potassium cyanide Consensus Reports

Reported in EPA TSCA Inventory.

Cuprous potassium cyanide Safety Profile

A poison. When heated to decomposition it emits toxic fumes of CN.
Safety information of Cuprous potassium cyanide (CAS NO.13682-73-0):
Hazard Codes  VeryT+
Risk Statements  20/21-28 
R20/21:Harmful by inhalation and in contact with skin. 
R28:Very toxic if swallowed.
Safety Statements  22-36/37/39-45
S22:Do not breathe dust. 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
RIDADR  UN 1679 6.1/PG 2
WGK Germany  3

Cuprous potassium cyanide Standards and Recommendations

ACGIH TLV: TWA 1 mg(Cu)/m3
DOT Classification:  6.1; Label: Poison

Cuprous potassium cyanide Specification

 Cuprous potassium cyanide , its CAS NO. is 13682-73-0, the synonyms are Cuprate(1-), dicyano-, potassium ; Potassium dicyanocuprate(1-) . It is an inorganic cyanide. Members of this class that contain heavy metals tend to explosive instability, most of them are capable of violent oxidation under certain condition; fusion of metal cyanides with metal chlorates, perchlorates, nitrates or nitrites can cause violent explosions

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