Service-Hotline: +43-1-2936882   Visit us on facebook      

A leading supplier for high purity elements, periodic table display samples for research, education and collection - Living science...
   Home | About us | About the Elements | Terms/conditions | References | Sponsoring |Guestbook | Contact | Deutsch

Pb
Lead
Atomic no.:
82
Atom. weight: 207.2
Density: 11.35
Class:
Heavy metal
Melting point: 327.5°C
Boiling point: 1740°C
Colour: Array
   
Discoverer: prehistoric
Place: ?
Year: prehistoric

Lead has been known of and used since prehistoric times. Lead is a soft, malleable and ductile metal. It has an abundance in the earth's crust of 14 ppm., the main source of the metal being the ore "galena", lead (II) sulfide (PbS) which occurs as grey cubic crystals, often in conjunction with "sphalerite", the equivalent sulfide of zinc. Lead oxidises readily in moist air, is stable to oxygen and water, but dissolves in nitric acid. It is a poor electrical and thermal conductor but has reasonable corrosion resistance. Applications for this metal are wide and varied; for example, its relative imperviousness to radiation makes it ideal as radiation shielding material for use with X-ray equipment. Lead is also used in ceramic glazes, batteries, paints, as a fuel additive in petrol (lead tetraethyl) and as a prime constituent of soft solders. However, its use is now being discouraged as lead is now known to be detrimental to health, particularly to that of children.

Source: ©Goodfellow.com

Views: 185070



  entries 1 to 1 from 1 Gallery view   periodic table

  Categories:  
  ampoules     Acrylic blocks     All categories  

 High pure lead metal flakes 99.999% in ampoule  Art. Nr. 004805  
High pure lead metal flakes 99.999% in ampoule
magnify Click to zoom!

High pure lead metal flakes 99.999% in ampoule

Produced by a special method to obtain highly shiny and oxide free surface. - Unique piece.

Amount: 4.7g
Purity : 99.999%
Packing: Ampoule
19.00
- tax free
5-9 pcs.: 18.00 Euro
Availability: 7 in stock

All pictures are copyright protected and may not be used without our permission!

Request information
Amount:
 

 

smart-elements.com - Last software update from 17.11.2018 - All rights reserved
Idea, Design & Programming © by Juergen Bauer - All rights reserved