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| CAS No.: | 13682-73-0 |
|---|---|
| Name: | Cuprous potassium cyanide |
| Article Data: | 3 |
| Molecular Structure: | |
|
|
|
| Formula: | C2CuKN2 |
| Molecular Weight: | 154.68 |
| 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-); |
| EINECS: | 237-192-2 |
| Density: | 4 g/mL at 25 °C |
| Melting Point: | 290 °C |
| Boiling Point: | 25.7oC at 760 mmHg |
| Hazard Symbols: |
|
| Risk Codes: | 20/21-28 |
| Safety: | 22-36/37/39-45 |
| PSA: | 47.58000 |
| LogP: | 0.03106 |
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B
- 13682-73-0
Potassium dicyanocuprate
| Conditions | Yield |
|---|---|
| In water addn. of Cu-salt to soln. of cyanide (stoich. excess.); solvent evapn. (crystn.); detd. by NMR spectroscopy; |
| Conditions | Yield |
|---|---|
| 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; |
| Conditions | Yield |
|---|---|
| In water addn. of aq. soln. of KCN to soln. of copper compd.; slow evapn., isolation of crystals, repeated recrystns.; |
| Conditions | Yield |
|---|---|
| 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
- 13682-73-0
Potassium dicyanocuprate
| Conditions | Yield |
|---|---|
| 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
- 13682-73-0
Potassium dicyanocuprate
| Conditions | Yield |
|---|---|
| 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
- 13682-73-0
Potassium dicyanocuprate
| Conditions | Yield |
|---|---|
| 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
- 13682-73-0
Potassium dicyanocuprate
| Conditions | Yield |
|---|---|
| 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% |
| Conditions | Yield |
|---|---|
| 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 | Yield |
|---|---|
| (i) aq. HCl, NaNO2, (ii) /BRN= 5410671/; Multistep reaction; |
- Total:13 Page 1 of 1 1
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Chemistry
Product Name: Cuprous potassium cyanide (CAS NO.13682-73-0)
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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
Uses
Cuprous potassium cyanide (CAS NO.13682-73-0) is used as chemical reagent, pharmaceutical intermediate.
Consensus Reports
Reported in EPA TSCA Inventory.
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 
T+
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
Standards and Recommendations
ACGIH TLV: TWA 1 mg(Cu)/m3
DOT Classification: 6.1; Label: Poison
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