267228
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
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12141734
EC Number:
231-116-1
MDL number:
assay
99.9% trace metals basis
form
wire
reaction suitability
core: platinum
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.
- 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.
Preparation Note
1 g = 25 cm; 4 g = 100 cm
Storage Class
13 - Non Combustible Solids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
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