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MilliporeSigma

326585

Sigma-Aldrich

Gold

powder, <10 μm, ≥99.9% trace metals basis

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500 MG
$220.00
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$1,250.00

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About This Item

Empirical Formula (Hill Notation):
Au
CAS Number:
7440-57-5
Molecular Weight:
196.97
EC Number:
231-165-9
MDL number:
MFCD00003436
UNSPSC Code:
12141717
PubChem Substance ID:
24859598
NACRES:
NA.23

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Quality Level

100

assay

≥99.9% trace metals basis

form

powder

resistivity

2.05 μΩ-cm, 0°C

particle size

<10 μm

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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This Item
265772GF03434699GF28343617
Gold powder, &lt;10&#160;&#956;m, &#8805;99.9% trace metals basis

Sigma-Aldrich

326585

Gold

Gold powder, &lt;45&#160;&#956;m, 99.99% trace metals basis

Sigma-Aldrich

265772

Gold

Gold powder, max. particle size 250 micron, weight 1&#160;g, purity 99.95%

GF03434699

Gold

Gold powder, mean particle size (fsss) &lt;2 micron, weight 1&#160;g, purity 99.95%

GF28343617

Gold

form

powder

form

powder

form

powder

form

powder

assay

≥99.9% trace metals basis

assay

99.99% 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.)

General description

Gold(Au) is a yellow noble metal known for its lustrous appearance and highresistance to corrosion. With a melting point of 1,063 °C, gold is one of themost malleable and ductile metals, making it ideal for various applications.Our high-purity gold powder is characterized by its purity of 99.9% on a tracemetals basis and is available in a fine powder form with particle sizes <10μm. Gold is widely used in electronics, dental materials, and as a catalyst invarious chemical reactions. Gold powder is a key material in the synthesisof gold nanoparticles, which have applications in sensors, imaging, and ascomponents in nanocomposites. The unique optical properties of goldnanoparticles are exploited in various nanotechnology applications.[1][2][3]

Application

Gold particles were used to coat Calcium-green-1 dextrans conjugated dye, for ballistic dye loading via gene gun.[4]
Gold particles were used to coat calcium-green-1 dextrans conjugated dye, for ballistic dye loading via gene gun.[4]

Storage Class

13 - Non Combustible Solids

wgk_germany

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
MKCV4716
MKCW6639
MKCT2631
MKCT9777
MKCR5962

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Summation in the hippocampal CA3-CA1 network remains robustly linear following inhibitory modulation and plasticity, but undergoes scaling and offset transformations.
Parameshwaran D and Bhalla US
Frontiers in Computational Neuroscience, 6, 71-71 (2012)
Young Joo Choi et al.
Journal of nanoscience and nanotechnology, 13(6), 4437-4445 (2013-07-19)
Gold nanorods (Au NRs) that absorb near-infrared (NIR) light have great potential in the field of nanomedicine. Photothermal therapy (PTT), a very attractive cancer therapy in nanomedicine, combines nanomaterials and light. The aim of this study was to elucidate the
Tae-Sik Cho et al.
Journal of nanoscience and nanotechnology, 13(5), 3711-3714 (2013-07-19)
The crystallization of Au/glass ultrathin films for surface plasmon resonance (SPR) biosensor has been studied using synchrotron X-ray scattering and field emission scanning electron microscope. In films thinner than 30 nm, crystallized Au grains with [111] preferred orientation were formed
Matthieu B Miller et al.
Journal of the Air & Waste Management Association (1995), 63(6), 681-693 (2013-07-19)
Industrial gold mining is a significant source of mercury (Hg) emission to the atmosphere. To investigate ways to reduce these emissions, reclamation and dust and mercury control methods used at open pit gold mining operations in Nevada were studied in
Nidhi Gupta et al.
Journal of nanoscience and nanotechnology, 13(7), 4917-4924 (2013-08-02)
The preparation and photocatalytic reductive ability of a new spongy flower or cotton bud like amorphous CdS microstructures (size = 200-300 nm) having intermediate crystal phase between cubic and hexagonal structure and possesses much larger surface area ca. 119 m2
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