| Identification | More | [Name]
GOLD(I) CYANIDE | [CAS]
506-65-0 | [Synonyms]
GOLD(+1)CYANIDE
GOLD CYANIDE
GOLD(I) CYANIDE
GOLD MONOCYANIDE
goldcyanide(au(cn))
Gold (I) cyanide (99.9%-Au)
GoldIcyanideyellowpowder
GOLD(I) CYANIDE 88% AU
GOLD(I) CYANIDE, 99.99%
Premion99.99%(metalsbasis)
Gold(I)cyanide,Premion,99.99%(metalsbasis)
Aurous cyanide
gold(i) cyanide, premion
Gold(I) cyanide, Premion(R), 99.99% (metals basis)
Cyanogold(I) | [EINECS(EC#)]
208-049-1 | [Molecular Formula]
CAuN | [MDL Number]
MFCD00003437 | [Molecular Weight]
222.98 | [MOL File]
506-65-0.mol |
| Chemical Properties | Back Directory | [Appearance]
Yellow powder | [Melting point ]
~50°C | [density ]
7,12 g/cm3 | [solubility ]
insoluble in H2O, ethanol, ethyl ether,dilute acid solutions | [form ]
Powder | [color ]
Yellow | [Specific Gravity]
7.14 | [Water Solubility ]
Slightly soluble in water. | [Sensitive ]
Moisture Sensitive | [Merck ]
14,4516 | [Exposure limits]
NIOSH: IDLH 25 mg/m3 | [Uses]
Electrolyte in the electroplating industry | [CAS DataBase Reference]
506-65-0(CAS DataBase Reference) | [EPA Substance Registry System]
Gold cyanide (Au(CN)) (506-65-0) |
| Safety Data | Back Directory | [Hazard Codes ]
T+,N | [Risk Statements ]
R26/27/28:Very Toxic by inhalation, in contact with skin and if swallowed .
R32:Contact with acids liberates very toxic gas.
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment . | [Safety Statements ]
S7:Keep container tightly closed .
S28:After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) .
S29:Do not empty into drains .
S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) . | [RIDADR ]
1588 | [WGK Germany ]
3 | [TSCA ]
Yes | [HazardClass ]
6.1 | [PackingGroup ]
II | [HS Code ]
28433000 |
| Hazard Information | Back Directory | [Hazard]
Toxic material.
| [Chemical Properties]
yellow powder(s); hexagonal; odorless; iridescent in sunlight; slowly decomposes in presence of moisture [MER06] | [Physical properties]
Yellow hexagonal crystals; odorless; density 7.14 g/cm3; decomposes slowly in the presence of moisture or decomposes on heating; insoluble in water, alcohol and ether; also insoluble in dilute acids; soluble in aqueous solutions of potassium-, or sodium cyanide, ammonia, and aqua regia. | [Preparation]
Gold(I) cyanide may be prepared by boiling sodium aurus cyanide, Na[Au(CN)2] with hydrochloric acid:Na[Au(CN)2] + HCl AuCN + HCN + NaCl
The complex cyanide, Na[Au(CN)2] is made by dissolving gold in a dilute solution of sodium cyanide in the presence of air; or by dissolution of a gold anode in a solution of sodium cyanide during electrolysis. The solution is evaporated to separate the complex, Na[Au(CN)2], which is purified by recrystallization from water. Potassium cyanide may be used instead of sodium cyanide to prepare gold(I) cyanide. | [Purification Methods]
The lemon yellow powder is sparingly soluble in H2O and EtOH but soluble in aqueous NH3. It is obtained by heating H[Au(CN)2] at 110o. Wash it well with H2O and EtOH and dry it at 110o. It has an IR band at max 2239 cm -1 typical for C stretching vibration. [Glemser & Sauer Handbook of Preparative Inorg anic Chemistry (Ed. Brauer) Academic Press Vol II p 1064 1965.] CARE: may evolve HCN. |
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