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265829

Sigma-Aldrich

Gold

foil, thickness 0.5 mm, 99.99% trace metals basis

Synonym(s):

Gold Powder, Gold element

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About This Item

Empirical Formula (Hill Notation):
Au
CAS Number:
Molecular Weight:
196.97
EC Number:
MDL number:
UNSPSC Code:
12141717
PubChem Substance ID:
NACRES:
NA.23

Assay

99.99% trace metals basis

form

foil

resistivity

2.05 μΩ-cm, 0°C

thickness

0.5 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

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, η) 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

6 g = 25 × 25 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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Performance and comparison of gold-based neutron flux monitors.
Steinhauser G, et al.
Gold Bulletin, 45, 17-22 (2012)
A kinetic study of oxygen reduction reaction on palladium-nickel alloy surfaces.
Li B, et al.
Electrochemical Society Transactions, 6(25), 139-144 (2008)
Study of wetting reaction between eutectic AuSn and Au foil.
Lai YT and Liu CY
Journal of Electronic Materials, 35, 28-34 (2006)
Bibek Jyoti Borah et al.
Journal of nanoscience and nanotechnology, 13(7), 5080-5087 (2013-08-02)
Multifunctional phosphine based ligands, 1,1,1-tris(diphenylphosphinomethyl)ethane [CH3C(CH2 PPh2)3][P3] and 1,1,1-tris(diphenylphosphinomethyl)ethane trisulphide [CH3C(CH2P(S)Ph2)3][P3S3] have been introduced to stabilize Au(o)-nanoparticles having small core diameter and narrow size distribution. The Au(o)-nanoparticles were synthesized by the reduction of HAuCl4 precursor with NaBH4 in the presence
Zhengxia Liu et al.
Journal of biomedical nanotechnology, 9(6), 1017-1028 (2013-07-19)
Ischemic stroke is a leading cause of death and disability, and the treatment options are limited. Recent studies demonstrated that the promising applications of gold nanoparticles (Au-NPs) as intrinsic therapeutics; however, little is known about the effect of Au-NPs on

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