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349275

Sigma-Aldrich

Gold

foil, thickness 0.05 mm, 99.99% trace metals basis

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Synonym(s):
Gold Powder, Gold black, Gold element
Empirical Formula (Hill Notation):
Au
CAS Number:
7440-57-5
Molecular Weight:
196.97
EC Number:
231-165-9
MDL number:
MFCD00003436
PubChem Substance ID:
24861642
NACRES:
NA.23

Quality Level

100

Assay

99.99% trace metals basis

form

foil

resistivity

2.05 μΩ-cm, 0°C

thickness

0.05 mm

bp

2808 °C (lit.)

mp

1063 °C (lit.)

density

19.3 g/mL at 25 °C (lit.)

SMILES string

[Au]

InChI

1S/Au

InChI key

PCHJSUWPFVWCPO-UHFFFAOYSA-N

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1 of 4

This Item
265810265829268461
Gold foil, thickness 0.05 mm, 99.99% trace metals basis

Sigma-Aldrich

349275

Gold

Gold foil, thickness 0.1 mm, 99.99% trace metals basis

Sigma-Aldrich

265810

Gold

Gold foil, thickness 0.5 mm, 99.99% trace metals basis

Sigma-Aldrich

265829

Gold

Gold foil, thickness 0.025 mm, 99.99% trace metals basis

Sigma-Aldrich

268461

Gold

form

foil

form

foil

form

foil

form

foil

resistivity

2.05 μΩ-cm, 0°C

resistivity

2.05 μΩ-cm, 0°C

resistivity

2.05 μΩ-cm, 0°C

resistivity

2.05 μΩ-cm, 0°C

bp

2808 °C (lit.)

bp

2808 °C (lit.)

bp

2808 °C (lit.)

bp

2808 °C (lit.)

mp

1063 °C (lit.)

mp

1063 °C (lit.)

mp

1063 °C (lit.)

mp

1063 °C (lit.)

density

19.3 g/mL at 25 °C (lit.)

density

19.3 g/mL at 25 °C (lit.)

density

19.3 g/mL at 25 °C (lit.)

density

19.3 g/mL at 25 °C (lit.)

General description

Gold is one of the most popular materials to be used for neutron flux monitoring mainly because it possesses a large thermal cross section for neutron capture (197Au(η, γ) 198Au. Gold has the half-life of 2.7 days. Reports show that the rate of dissolution of Au is very fast in SnPb solder.

Application

Gold based neutron flux monitors may use gold foils. Au foils may be used to form a AuSn/Au joint system for opto-electronic chips. Modified gold foil electrode may be used to study heterogeneous electron transfer properties of biological electron transfer proteins.3 Electrodeposited polycrystalline palladium-nickel alloy on gold foils may be investigated for the enhanced catalytic behavior of the alloy.

Quantity

600 mg = 25 × 25 mm; 2.4 g = 50 × 50 mm

Storage Class Code

11 - Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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25G
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Performance and comparison of gold-based neutron flux monitors.
Steinhauser G, et al.
Gold Bulletin, 45, 17-22 (2012)
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Innovative hybrid nanocomposites based on a nanostructured block copolymer (BCP) matrix whose lamellar nanodomains are selectively loaded with metal nanoparticles, have been prepared. A symmetric poly(styrene-b-methylmethacrylate) (PS-b-PMMA) amorphous BCP showing a lamellar morphology has been employed. Thin films of PS-b-PMMA
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