gold cyanide

Structural formula

• Numbering system
• Physical property data
• Toxicological data
• Ecological data
• Molecular structure data
• Computing chemical data
• More
  • Properties and Stability
  • Storage method
  • Synthesis method
  • Purpose

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