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267228

Sigma-Aldrich

Platinum

wire, diam. 0.5 mm, 99.9% trace metals basis

Synonym(s):

Platinum element, Platinum gray

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About This Item

Empirical Formula (Hill Notation):
Pt
CAS Number:
Molecular Weight:
195.08
EC Number:
MDL number:
UNSPSC Code:
12141734
PubChem Substance ID:
NACRES:
NA.23

Quality Level

Assay

99.9% trace metals basis

form

wire

resistivity

10.6 μΩ-cm, 20°C

diam.

0.5 mm

bp

3827 °C (lit.)

mp

1772 °C (lit.)

density

21.45 g/cm3 (lit.)

SMILES string

[Pt]

InChI

1S/Pt

InChI key

BASFCYQUMIYNBI-UHFFFAOYSA-N

General description

Platinum (Pt) is a highly ductile, malleable and unreactive metal. It is resistant to corrosion and stable at high temperatures. Although resistant to hydrochloric and nitric acid, it dissolves readily in hot aqua regia to form chloroplatinic acid.

Application

Platinum wire finds major applications as an electrode, such as:
  • Auxiliary electrode in flow cell to determine ammonia content.
  • Electrodes for photoconductive stimulation of neurons cultured on silicon wafers.
  • Electrode to give current flow in electrophoresis chamber for ion migration.
Additionally, Pt wire may be used:
  • As a microelectrode-indicator electrode in voltammetry.
  • As a transvascular embolic agent.
  • To study chronopotentiometry of hydrogen peroxide with a platinum wire electrode or
  • In gas detection instruments.

Quantity

1 g = 25 cm; 4 g = 100 cm

Storage Class Code

13 - Non Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Karl Crowley et al.
The Analyst, 133(3), 391-399 (2008-02-27)
A sensor for the amperometric detection of aqueous ammonia was fabricated using the inkjet printing of dodecylbenzene sulfonate (DBSA)-doped polyaniline nanoparticles (nanoPANI) onto a screen-printed carbon paste electrode. The combination of the environmentally inert, aqueous nanoparticle dispersion with the inkjet
Voltammetry with Stationary Microelectrodes of Platinum Wire.
Laitinen HA and Kolthoff IM
The Journal of Physical Chemistry, 45(7), 1061-1079 (1941)
Tao Xiong et al.
Journal of biomedical nanotechnology, 9(2), 274-280 (2013-05-01)
Noninvasive molecular fluorescence imaging in vivo which combines Optical imaging with genetic marker technology can real time monitor the development of tumor, through the use of human adenoid cystic carcinoma cell (ACC-M) and lung carcinoma cells SPC-A1 were thansfected by
Shanshan Cui et al.
BMC structural biology, 13, 4-4 (2013-03-23)
To explore novel platinum-based anticancer agents that are distinct from the structure and interaction mode of the traditional cisplatin by forming the bifunctional intrastrand 1,2 GpG adduct, the monofunctional platinum+DNA adducts with extensive non-covalent interactions had been studied. It was
Mohammad Shamsuddin Ahmed et al.
Journal of nanoscience and nanotechnology, 13(1), 306-314 (2013-05-08)
Multi-walled carbon nanotube grafted Pt nanoparticles via nitrogen atom (MWCNT-N-Pt) has chemically synthesized and characterized as an efficient oxygen reduction reaction (ORR) catalysts. Structural and morphological properties of the electrocatalyst have characterized by transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy

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