Lead telluride

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Crystal structure
Structural formula of lead telluride
__ Pb 2+      __ Te 2−
General
Surname Lead telluride
other names
  • Lead (II) telluride
  • Tellurium lead
Ratio formula PbTe
Brief description

gray solid

External identifiers / databases
CAS number 1314-91-6
EC number 215-247-1
ECHA InfoCard 100,013,862
PubChem 4389803
Wikidata Q425263
properties
Molar mass 334.80 g mol −1
Physical state

firmly

density

8.164 g cm −3 (25 ° C)

Melting point

905 ° C

solubility

almost insoluble in water

safety instructions
GHS labeling of hazardous substances
07 - Warning 08 - Dangerous to health 09 - Dangerous for the environment

danger

H and P phrases H: 302-332-360Df-373-410
P: 201-273-308 + 313-501
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Lead telluride is an inorganic chemical compound of lead from the group of tellurides .

Occurrence

Lead telluride occurs naturally in the form of the mineral altaite .

Extraction and presentation

Lead telluride can be obtained by reacting lead with tellurium or a boiling solution of lead (II) salts with tellurium powder.

properties

Lead telluride is a gray, brittle crystalline solid that is insoluble in water. It is a semiconductor and has the cubic sodium chloride structure with the space group Fm 3 m (space group no. 225) . Template: room group / 225

use

Lead telluride is used as a thermocouple in a temperature range of 200 to 600 ° C.

Individual evidence

  1. ^ A b Jean D'Ans, Ellen Lax: Paperback for chemists and physicists . Springer DE, 1997, ISBN 3-540-60035-3 , pp. 666 ( limited preview in Google Book search).
  2. a b c d e data sheet Lead (II) telluride, 99.998% trace metals basis at Sigma-Aldrich , accessed on September 20, 2012 ( PDF ).
  3. ^ A b David R. Lide: CRC Handbook of Chemistry and Physics . CRC Press, 2012, ISBN 1-4398-8049-2 , pp. 4–71 ( limited preview in Google Book search).
  4. a b José S. Casas, José Sordo: Lead: Chemistry, analytical aspects, environmental impact and health effects . Elsevier, 2006, ISBN 0-444-52945-4 , pp. 31 ( limited preview in Google Book search).
  5. Christine Junior: Analysis of thermoelectric modules and overall systems . BoD - Books on Demand, 2010, ISBN 3-89936-987-4 , pp. 107 ( limited preview in Google Book search).
  6. ^ Terry M. Tritt: Thermal Conductivity: Theory, Properties, and Applications . Springer, 2005, ISBN 0-306-48327-0 , pp. 128 ( limited preview in Google Book search).