Element Platinum

Platinum ElementIt is an element with atomic symbol Pt, atomic number 78, and atomic weight 195.09.
Platinum is a nickel group element atom and a platinum group metal atom.
Platinum is under investigation for the treatment of Metastatic Breast Cancer, Non-small Cell Lung Cancer, Gastric Large Cell Neuroendocrine Carcinoma, Colorectal Large Cell Neuroendocrine Carcinoma, and Pancreatic Large Cell Neuroendocrine Carcinoma, among others. Platinum has been investigated for the treatment and supportive care of Ovarian Cancer, Fallopian Tube Cancer, Peritoneal Primary Cancer, Non Small Cell Lung Cancer, and Primary Peritoneal Carcinoma, among others.

Names and Identifiers

Chemical Formula:Pt
CAS:7740-06-4
Molecular Weight:195.084 g/mol
EC Number :231-116-1
MDL Number:MFCD00011179
Color:silvery-white
Other Names:n/a
PubChem CID:23939
IUPAC Name:Platinum
Inchl:InChI=1S/Pt
InChI Key:BASFCYQUMIYNBI-UHFFFAOYSA-N
Canonical SMILES:[Pt]
ICSC Number:1393

Physical & Chemical Properties

Phase:Solid
Density:21.45 g/cm³
Boiling Point:4098 K ​(3825 °C, ​6917 °F)
Melting Point:2041.4 K ​(1768.3 °C, ​3214.9 °F)
Molecular Formula:Pt
Flash Point:3825°C
Exact Mass:194.964798
Symbol:Globally Harmonized System of Classification
Signal Word:Danger
Hazard Statements:H228
Precautionary Statements:P210
Hazard Codes:F:Highlyflammable;
Risk Phrases:R11
Safety Phrases:S36-S7/9-S33-S16-S38-S22-S26-S14-S36/37/39-S27-S24/25
RIDADR:UN 3264 8/PG 3
WGK Germany:3
RTECS:TP2160000
Packaging Group:III
Hazard Class:4.1

Platinum has six naturally occurring isotopes: 190Pt, 192Pt, 194Pt, 195Pt, 196Pt, and 198Pt.
The most abundant of these is 195Pt, comprising 33.83% of all platinum.
It is the only stable isotope with a non-zero spin; with a spin of 1/2, 195Pt satellite peaks are often observed in 1H and 31P NMR spectroscopy

Naturally occurring isotopes

IsotopeMass/DaNatural abundance (atom %)Nuclear spin (I)Magnetic moment (μ/μN)
190Pt189.959917 (7)0.014 (1)0
192Pt191.961019 (5)0.782 (7)0
194Pt193.962655 (4)32.967 (99)0
195Pt194.964766 (4)33.832 (10)1/20.60950
196Pt195.964926 (4)25.242 (41)0
198Pt197.967869 (6)7.163 (55)0

Radiosotope data

IsotopeMass/DaHalf-lifeMode of decayNuclear spinNuclear magnetic moment
191Pt190.9616842.96 dEC to 191Ir3/20.50
193Pt192.96298460 yEC to 193Ir1/2
197Pt196.96732318.3 hβ to 197Au1/20.51

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