Nanoscientifica Gold Single-Crystal Particles

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    Volume: 1 mL. For larger volumes, please inquire sales@nanoscientifica.com.

    CAS Number: 7440-57-5
    EC: Number: 231-165-9
    - Solvent carrier: Water
    - Capping agent: Cetyltrimethylammonium chloride (CTAC). For other capping agents, please inquire sales@nanoscientifica.com.
    - Concentration: < 0.005 wt%*
    - Transport Temperature: > 5 ºC
    - Storage Temperature: 5 ºC


    Volume: 1 mL


    Description
    Nanoscientifica Gold Single-Crystal Particles covers a wide range of monodisperse, monocrystalline gold nanoparticles with a quasi-spherical shape with a low population of polycrystalline nanoparticles (<10%). 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 Single-Crystal 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.

    Special features

    Due to the high crystallinity, NanoScientifica Gold Single-Crystal Particles are ideal building blocks to the fabrication of multimetallic core-shell nanostructures by epitaxial overgrowth, whether to generate polycrystalline or monocrystalline shell surfaces. Due to the narrow size distribution of our nanoparticles, the sharp localized plasmon resonance peak (LSPR) enables the fabrication of ultrasensitive optical sensors and it is the most recommended product for experimental-theoretical academic works.



    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

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