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P
Phosphorus


Atomic no.:
15
Atom. weight: 30.973761
Density: 1.82
Class:
non metal
Melting point: 44.1°C
Boiling point: 280.5°C
Colour: white, red or black
   
Discoverer: Henning Brand
Place: Hamburg, Germany
Year: 1669

There are several forms of phosphorus. White phosphorus is manufactured industrially, glows in the dark, is spontaneously flammable when exposed to the air above 30°C and is a deadly poison. Red phosphorus, made by gently heating white phosphorus in the absence of air to about 250°C, does not glow, is stable and is not poisonous. This is the material, mixed with powdered glass, stuck on the side of boxes of safety matches on which the matches must be struck to light them. Phosphorus itself is essential to all forms of life since it is part of DNA, although there are many phosphorus compounds that are essential in the living cell. We take in about 1 gram of phosphate a day, and we store about 750 grams in our bodies, since our bones are mainly calcium phosphate. In the environment and in living things, phosphorus is present as phosphate, which consists of one phosphorus atom at the centre of four oxygen atoms. Phosphates are used in fertilisers and detergents and in metal coatings to prevent corrosion. However, excess phosphates in rivers and lakes cause an over-growth of slimy green algae, which robs the water of its life-supporting oxygen.

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 High purity Black Phosphorus - crystal cluster - 781.5mg  Art. Nr. 004754  
High purity Black Phosphorus - crystal cluster -  781.5mg
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Black Phosphorus 781.5mg sealed under Argon - special & unique piece with very large crystals

High pure black Phosphorus crystal cluster produced by gas phase transport - The highly shiny and very stable crystals have a bluish black metallic luster. You get a crystal cluster similar as shown in the picture from which single crystals can be isolated. By scotch tape method very thin '2D-Layers' can be obtained. These samples are perfecty suited for semiconductor experiments. We cannot guarantee that you get the cluster in one piece because of its very brittle consistence.

In order to avoid breakage of the sensitive crystals we did not clean this cluster after synthesis.

For analysis data (XRD, Raman, TEM) please refer to selected science papers where our material has been used.

iopscience.iop.org - Isolation and characterization of few-layer black phosphorus

 

 

Amount: 781.5mg
Purity : ~99.998%
Packing: PE/ Argon
450.00 Euro
- tax free

Stock quantity: 0 available

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