Gold

Name: Gold
Brand: ALDRICH

powder, <45 μm, 99.99% trace metals basis

Synonym(s):

Gold Powder, Gold element

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About This Item

Empirical Formula (Hill Notation):

CAS Number:

7440-57-5

Molecular Weight:

196.97

NACRES:

NA.23

PubChem Substance ID:

24856101

UNSPSC Code:

12141717

EC Number:

231-165-9

MDL number:

MFCD00003436

Key Documents

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Product Name

Gold, powder, <45 μm, 99.99% trace metals basis

InChI key

PCHJSUWPFVWCPO-UHFFFAOYSA-N

InChI

1S/Au

SMILES string

[Au]

assay

99.99% trace metals basis

form

powder

resistivity

2.05 μΩ-cm, 0°C

particle size

<45 μm

bp

2808 °C (lit.)

mp

1063 °C (lit.)

density

19.3 g/mL at 25 °C (lit.)

Quality Level

100

Related Categories

Energy Materials

Gold Compounds

High-Purity Metals & Alloys

Chemistry & Biochemicals

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This Item	326585	GF03434699	GF29336676
Sigma-Aldrich 265772 Gold	Sigma-Aldrich 326585 Gold	GF03434699 Gold	GF29336676 Gold
form powder	form powder	form powder	form powder
assay 99.99% trace metals basis	assay ≥99.9% trace metals basis	assay 99.95%	assay 99.95%
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.)
mp 1063 °C (lit.)	mp 1063 °C (lit.)	mp 1063 °C (lit.)	mp 1063 °C (lit.)
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.)

Application

Applied in the synthesis of new low-dimensional, quaternary gold selenophosphate compounds, A₃AuP₂Se₈ (a=Rb, K, Cs) and A₂Au₂P₂Se₆ (a=Rb, K).[1]

General description

Gold (Au) is a yellow noble metal known for its lustrous appearance and high resistance to corrosion. With a melting point of 1,063 °C, gold is one of the most malleable and ductile metals, making it ideal for various applications. Our high-purity gold powder is characterized by its purity of 99.995% on a trace metals basis and is available in a fine powder form with particle sizes less than 45 microns. Gold is widely used in electronics, dental materials, and as a catalyst in various chemical reactions. Its exceptional conductivity and biocompatibility make it particularly valuable in electronics, catalysis, and synthesis.[2][3][4]

Storage Class

13 - Non Combustible Solids

wgk

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Chondroudis, K. et al.

Inorganic Chemistry, 36, 2623-2623 (1997)

Nanocomposites from block copolymer lamellar nanostructures and selective gold deposition.

Claudia Diletto et al.

Journal of nanoscience and nanotechnology, 13(7), 5215-5220 (2013-08-02)

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

Simulation study on gold nanoparticle-cellular membrane complex in endocytosis process.

Fengxian Zheng et al.

Journal of nanoscience and nanotechnology, 13(6), 3990-3998 (2013-07-19)

Gold nanoparticles (AuNPs) are of biomedical importance, such as delivery vectors. Therefore, we used all-atom molecular dynamic simulations to study the interaction of AuNPs with cell membrane (DMPC bilayer). We observed that the AuNPs adhered spontaneously on the surface of

Enhancement of the sensitivity of surface plasmon resonance biosensor by modifying the metal surface.

Young Min Bae et al.

Journal of biomedical nanotechnology, 9(6), 1060-1064 (2013-07-19)

We report on the enhancement of sensitivity of SPR biosensor by modifying the metal surface. A mixture layer, in which gold and dielectric medium coexist, was simply prepared by increasing the roughness of gold surface deposited onto a glass substrate

Engineering bioconjugated gold nanospheres and gold nanorods as label-free plasmon scattering probes for ultrasensitive multiplex dark-field imaging of cancer cells.

Tianxun Gong et al.

Journal of biomedical nanotechnology, 9(6), 985-991 (2013-07-19)

In this paper, we proposed the use of gold nanoparticles as plasmon scattering probes for dark-field multiplex imaging of live cancer cells. By carefully engineering the surfaces, aqueous dispersions of anti-EGFR antibody-conjugated gold nanospheres and gold nanorods are prepared. We

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