Potassium silver cyanide

Structure formula of potassium silver cyanide

Structure formula of potassium silver cyanide

Structural formula

Business number 059K
Molecular formula KAg(CN)2
Molecular weight 199.01

Potassium silver(I) cyanide,




Numbering system

CAS number:506-61-6

MDL number:MFCD00036297

EINECS number:208-047-0

RTECS number:TT5775000

BRN number:None

PubChem number:24863622

Physical property data

1. Properties: White crystal, sensitive to light.

2. Density (g/cm3, 25/4℃): 2.36

3. Relative steam density (g/cm3 , air = 1): not determined

4. Melting point (ºC): not determined

5. Boiling point (ºC, normal pressure): not determined

6. Boiling point (ºC, 8kPa): Undetermined

7. Refractive index: Undetermined

8. Flash point (ºF): Undetermined

9. Specific rotation (º): Undetermined

10. Autoignition point or ignition temperature (ºC): Undetermined

11. Vapor pressure (kPa, 25ºC ): Undetermined

12. Saturated vapor pressure (kPa, 60ºC): Undetermined

13. Heat of combustion (KJ/mol): Undetermined

14. Critical temperature (ºC): Undetermined

15. Critical pressure (KPa): Undetermined

16. Log value of oil-water (octanol/water) partition coefficient: Undetermined Determined

17. Explosion upper limit (%, V/V): Undetermined

18. Explosion lower limit (%, V/V): Undetermined

19. Solubility: Undetermined

Toxicological data

1. Skin/eye irritation data: Standard Draize test rabbit direct contact with skin: 500mg/24HREACTION SEVERITY: severe;

Standard Draize test rabbit direct contact with eyes: 250ug/24HREACTION SEVERITY: severe;


2. Acute toxicity: Rat oral LD50: 20900ug/kg, no detailed description except lethal dose;

Ecological data

This substance may be harmful to the environment, and special attention should be paid to water bodies.

Molecular structure data

None yet

Compute chemical data

1. Reference value for hydrophobic parameter calculation (XlogP):

2. Number of hydrogen bond donors: 0

3. Number of hydrogen bond acceptors: 4

4. Number of rotatable chemical bonds: 0

5. Number of tautomers:

6. Topological molecular polar surface area (TPSA): 47.6

7.Number of heavy atoms: 6

8, Surface charge: 0

9, Complexity: 10

10, Number of isotope atoms: 0

11. Determine the number of atomic stereocenters: 0

12. Uncertain the number of atomic stereocenters: 0

13. Determine the number of chemical bond stereocenters: 0

14. The number of uncertain stereocenters of chemical bonds: 0

15. The number of covalent bonding units: 4

Properties and stability

Use and store according to specifications. It will not decompose and avoid contact with oxides. Soluble in water, AgCN precipitates in acidic solutions.

Storage method

Stored in a cool, dry and well-ventilated warehouse. Keep away from fire and heat sources. Protect from direct sunlight. The packaging is sealed. They should be stored separately from acids and food chemicals, and avoid mixed storage. Suitable materials should be available in the storage area to contain spills.

Synthesis method

Dissolve pure silver with nitric acid, remove impurities, filter, add KCN or NaCN for precipitation, wash, add KCN for complexation, and finally filter, crystallize, centrifuge, and dry to obtain the finished product.

The solution containing KCN and AgCN was evaporated at room temperature.


The coating has good weldability, high coating surface finish, and strong bonding with the base material. Can be used for surface silver plating of electronic devices. Also used as a fungicide and preservative.

BDMAEE:Bis (2-Dimethylaminoethyl) Ether

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