gold cyanide
Structural formula
| Business number | 059M |
|---|---|
| Molecular formula | AuCN |
| Molecular weight | 222.98 |
| label |
None yet |
Numbering system
CAS number:506-65-0
MDL number:MFCD00003437
EINECS number:208-049-1
RTECS number:None
BRN number:None
PubChem number:24855354
Physical property data
1. Properties: yellow powder. Hexagon. Odorless.
2. Density (g/ cm3, 25/4℃): 7.14
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
None yet
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): None
2. Number of hydrogen bond donors: 0
3. Number of hydrogen bond acceptors: 2
4. Number of rotatable chemical bonds: 0
5. Number of tautomers: none
6. Topological molecule polar surface area 23.8
7. Number of heavy atoms: 3
8. Surface charge: 0
9. Complexity: 12.8
10. Number of isotope atoms: 0
11. Determine the number of atomic stereocenters: 0
12. Uncertain number of atomic stereocenters: 0
13. Determine the number of chemical bond stereocenters: 0
14. Number of uncertain chemical bond stereocenters: 0
15. Number of covalent bond units: 2
Properties and stability
Use and store according to specifications. It will not decompose and avoid contact with oxides. It flashes in the sun and slowly decomposes in a humid environment. The density is 7.14g/cm3. Insoluble in water, alcohol and dilute acid. Soluble in NH3 and NaCN 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
Cool the aqueous solution of K[Au(CN)2] and add hydrochloric acid. Heating to 50°C, most of the AuCN precipitates out. The mixture was concentrated to dryness on a steam bath to drive out HCN. The residue was filtered after adding water, and washed thoroughly in the dark to remove KCl. The precipitate was dried in a concentrated H2SO4 desiccator.
Purpose
None yet
