PT 76 Osmium Traditional Cache
Hidden : 8/11/2012
Difficulty:
1.5 out of 5
Terrain:
1.5 out of 5

Size: Size: small (small)

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Geocache Description:


Welcome to the periodic table of the elements powered trail. There will be 118 caches to each represent each element on the periodic table (until new elements are added). For simplicity sake only elements approved by the “International Union of Pure and Applied Chemistry” will be included in this series.



The cache containers are small tubes as shown in the picture below


These containers have only a logbook inside them and no pen/pencil. Please make sure to bring a pen.

Ruthenium, rhodium, palladium, osmium, iridium, and platinum together make up a group of elements referred to as the platinum group metals (PGM).

Osmium metal is lustrous, bluish white, extremely hard, and brittle even at high temperatures. It has the highest melting point and lowest vapour pressure of the platinum group. The metal is very difficult to fabricate, but the powder can be sintered in a hydrogen atmosphere at a temperature of 2000°C. The solid metal is not affected by air at room temperature, but the powdered or spongy metal slowly gives off osmium tetroxide, which is a powerful oxidising agent and has a strong smell. The tetroxide is highly toxic, and boils at 130°C (760 mm). Concentrations in air as low as 10-7 g m-3 can cause lung congestion, skin damage, or eye damage. Source: Webelements.

This power trail starts at Mount Henry Bridge and continues south down the freeway cyclepath. This power trail is designed for bicycles or walkers and will be extremely hard, if not impossible for drivers. There is however a car park and a playground near the start.

Please stay safe and enjoy the power trail.

Additional Hints (No hints available.)



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