About the sample
There are two Platinum sample. One is platinum sponge and looks like powder in the bottle and it is a donation of the British company  Johnson Matthey. This largest company in Macedonia, has a factory opened in 2010 and it has more than 680 employees. It is also the largest exporter in Macedonia, as it sells a quarter of Macedonia’s exports at foreign markets.
Johnson Matthey is a company that has products that prevent air pollution from diesel and gasoline vehicles. Namely, they produce: Diesel oxidation catalyst (DOC), Catalysed soot filter (CSF), Selective catalytic reduction (SCR) device, Selective catalytic reduction filter (SCRF), NOx storage catalyst (NSC), Ammonia slip catalyst (ASC) for emissions control when diesel is used and Three-way catalyst (TWC) Three-way filter (TWF) when gasoline is used.
The other sample like a foil of platinum is a piece from a platinum crucible lid.
ρ / g/cm321.09
tt, mp / °C1768
tv, bp / °C3825
Electronegativity, (X)2.28
Crystal structureCubic
Extended informationhttps://www.webelements.com/platinum/