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Gold, powder

CAS: 7440-57-5 Element: powder Gold

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Identification
Specifications
Safety
Suppliers

Identification

CAS number

7440-57-5

Chemical Name:

Gold, powder

Molecular Formula:

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 Specifications

Molecular 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:

n20/589.3 1.523

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 Information

Hazard Classes:

6.1

Hazard Symbols:

Xi, Xn, F, C
hazard symbol C

Europe standard Hazard pictograms, code and definition

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 :

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.

Suppliers

Global Gold, powder Suppliers : U.K. (1)

Supplier	Phone	Fax	Country	Inquiry Order
Johnson Matthey Plc	+44-1763-253 000	+44-1763-253 492	U.K.	Get price

Former or previous provider

The 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 )