Nanoscientifica Gold Particles

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Volume: 100 mL. For larger volumes, please enquire sales@nanoscientifica.com
CAS Number: 7440-57-5
EC: Number: 231-165-9
- Solvent carrier: Water
- Concentration: ≈ 0.005 wt%
- Transport Temperature: > 5 ºC
- Storage Temperature: 5 ºC

*Only available for delivery within EU, Switzerland, United Kingdom, Norway, United States. Other countries, please inquire sales@nanoscientifica.com


Volume: 100 mL


Description
Nanoscientifica Gold Particles endows a series of monodisperse polycrystalline nanocrystals with a spherical shape with an average diameter ranging from 10 - 50 nm.  Citrate-capped nanoparticles are very stable. Citrate-capping can be easily functionalized with various ligands, such as peptides, DNA,  and antibodies.

Optical properties

Colloidal suspension of Gold Spherical nanoparticles shows strong light absorption in the visible region due to the intense surface plasmon resonance cross-section. NanoScientifica Gold Particles are manufactured with cutting-edge technology, free from aggregation, ready to straighten their full performance in your research, development, and use in industrial-scale in your demanding applications. Our nanoparticles are precisely characterized using UV/VIS spectrophotometry, Transmission Electron Microscopy (TEM), dynamic light scattering (DLS, particle size analysis) and/or Zeta potential (surface charge) measurements.



Physical-Chemical Properties

Ranking in order of abundance in earth crust
75
Mean content in earth crust
0.004 ppm (g/tonne)
Mean content in oceans
4 · 10-6 ppm (g/tonne)
Residence time in oceans
100 · 103  years
Radii of atoms (ppm)
Atomic: 135
Covalent: 144
Density (g cm-3)
19.3 
Molar volume ( cm-3)
10.21
Specif ic heat cat 298 K  (J K–1 kg1)

129
Thermal conductivity (Wm–1K–1) 
173 K: 324
273 K: 319
373 K: 313
575 K: 299
973 K: 272
Coefficient of linear expansion (K–1)
100 K: 11.8 · 10-6 
293 K: 14.2· 10-6 
500 K: 15.4 · 10-6 
800 K: 17 · 10-6 
Resistivity (nΩm)
78 K: 5
273 K: 20.5
373 K: 28.8
573 K: 46.3
973 K: 86 
1336 K: 310
Mass magnetic susceptibility (m3 kg-1)
293 K: –1.78 · 10-9 
Youngs modulus (G Pa)
78
Shear modulus (G Pa)
27
Bulk modulus (G Pa)
234
Poissons ratio
0.44
Enthalpy of fusion ΔHfus at melting point (kJmol-1)
13.0
Enthalpy of vaporization ΔHvap at boiling point (kJmol-1)
325 
Enthalpy of atomization ΔHat at 298 K (kJmol-1)
366
Entropy S0 at 298 K (J K-1mol-1)
47.40 
Molar heat capacity Cp at temperature K (J K-1mol-1)
100 K: 21.4
298 K: 25.42
600 K: 26.8
1000 K: 28.9
2000 K: 29.3
2500 K: 29.3

Signal Word
Warning

Hazard Statements
H400-H410

Hazard Codes
Xn,N

Precautionary Statements
P273-P391-P501a

Flash Point
Not applicable

Risk Codes
22-36/38-50/53

Safety Statements
22-60-61

RTECS Number
GL8900000

Transport Information
UN 3077 9 / PGIII

WGK Germany
3

GHS Pictograms

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