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267228

Sigma-Aldrich

Platinum

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

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Synonym(s):
Platinum element, Platinum gray
Empirical Formula (Hill Notation):
Pt
CAS Number:
Molecular Weight:
195.08
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

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

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

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form

wire

form

sponge

form

wire

form

wire

resistivity

10.6 μΩ-cm, 20°C

resistivity

10.6 μΩ-cm, 20°C

resistivity

10.6 μΩ-cm, 20°C

resistivity

10.6 μΩ-cm, 20°C

bp

3827 °C (lit.)

bp

3827 °C (lit.)

bp

3827 °C (lit.)

bp

3827 °C (lit.)

mp

1772 °C (lit.)

mp

1772 °C (lit.)

mp

1772 °C (lit.)

mp

1772 °C (lit.)

density

21.45 g/cm3 (lit.)

density

21.45 g/cm3 (lit.)

density

21.45 g/cm3 (lit.)

density

21.45 g/cm3 (lit.)

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

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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25G
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705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

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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)
Loris De Cecco et al.
PloS one, 8(3), e58849-e58849 (2013-03-14)
We recently reported that peritumoral CpG-ODN treatment, activating TLR-9 expressing cells in tumor microenvironment, induces modulation of genes involved in DNA repair and sensitizes cancer cells to DNA-damaging cisplatin treatment. Here, we investigated whether this treatment induces modulation of miRNAs
Wei Sun et al.
Materials science & engineering. C, Materials for biological applications, 33(4), 1907-1913 (2013-03-19)
In this paper a platinum (Pt) nanoparticle decorated graphene (GR) nanosheet was synthesized and used for the investigation on direct electrochemistry of myoglobin (Mb). By integrating GR-Pt nanocomposite with Mb on the surface of carbon ionic liquid electrode (CILE), a
Yuan Xiong et al.
Organic letters, 15(8), 1962-1965 (2013-04-12)
Metal-mediated rearrangements of 3-alkynyl flavone ethers are reported. The overall process involves 5-endo enyne cyclization to a platinum-containing spiro-oxocarbenium intermediate which may be trapped with methanol to produce spirodihydrofurans or further rearranged to afford either allenyl chromanediones or benzofuranones.

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