IdentificationCAS number
7440-57-5
Chemical Name:
Gold, powder
Molecular Formula:
Au
Synonyms:
finesphere gold w 011 ; npg ; au ; glod ; shell gold ; c.i. 77480 ; burnish gold ; aue 003a ; ci77480 ; finesphere gold w 101 ; gold element ; palegold 5550 ; technic 504 ; goldn ; gold ; au 050921 ; agc micro ; aurous ; au np ; auric ; powdersafe 1790-01 ; sg 10nk ; colloidalgold ; britecote ; cg 001 ; perfect gold ; keradec ; tr 1306 ; t 10112 ; gold 197 ; g1402 ; au net ; a4953 ; alfa-aesar ; gold flake ; tau 200 ; a 4631 ; au 050316 ; auw 101 ; ay 5022 ; gc ; gold powder ; powdersafe 1785-01 ; ph 870 ; gold black ; gold leaf ; e 175 ; c.i. pigment metal 3 ; npg-j ; furuuchi 8560
Product SpecificationsMolecular Weight:
196.9666 g·mol−1
Density:
19.3 g/mL at 25 °C(lit.)
Melting point:
1063 °C(lit.)
Boiling point:
2808 °C(lit.)
Flash point:
4 °C
Refractive index:
n
Solubility:
zero Stability Stable. May react with halogens, strong oxidizing agents, ammonia,hydrogen peroxide.Reaction with ammonia or hydrogen peroxide may form explosive materials.Toxicology Tumorigenic and reproductive ef
Physical Description:
orange-yellow - brown-yellow powder
Safety InformationHazard Classes:
6.1
Hazard Symbols:
Hazardous Substances Data:
Non-Regulated Material ¹
Risk Codes:
36/38-43-67-65-63-48/20-38-11-34-23-52/53 (R)
Safety Codes:
26-36/37/39-45-62-36/37-61-23 (S)
WGK Germany :
3
RID / ADR :
UN 1789 8 / PG 3
RTECS :
MD5420000
Storage temperature :
2-8°C
Occurrence:
South Africa, the former U.S.S.R., northwest Canada, U.S. (South Dakota, Nevada, Utah, Alaska, California), Australia. Oceans are estimated to contain 70 million tons in solution, with 10 billion additional tons on the ocean floor. There is no present economical method of exploiting these resources.
Type of Occurrence:
Ingots; sheet; wire; tubing; powder; leaf; alloys with copper or other metals, the gold content being expressed in carats (the number of parts of gold in 24 parts of alloy). Single crystals and aqueous colloidal suspensions. Leaf may be made in near-colloidal thickness; one troy ounce covers 68 sq ft at 0.0001 inch thickness.
SuppliersGlobal Gold, powder Suppliers :
U.K. (1)
Former or previous providerThe following companies had been manufactured successfully in the past or were listed as
an excellent supplier in our directory.
Reade Advanced Materials ( Riverside, RI 02915-0039 USA ) | Ferro GmbH ( 60327 Frankfurt am Main Germany ) | ABCR GmbH & Co. KG ( D-76187 Karlsruhe Germany )
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