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Tellurium

Tellurium

CAS:
13494-80-9
MF:
Te
MW:
127.6

Properties

Melting point:
450 °C (lit.)
Boiling point:
990 °C (lit.)
Density 
6.24 g/mL at 25 °C (lit.)
vapor pressure 
0Pa at 25℃
storage temp. 
Sealed in dry,Room Temperature
solubility 
insoluble in H2O, benzene, CS2
Specific Gravity
6.24
color 
Silver-white
Resistivity
5.8-33 μΩ-cm, 20°C
Water Solubility 
insoluble H2O, benzene, CS2 [MER06]
Merck 
13,9201
Exposure limits
TLV-TWA 0.1 mg (Te)/m3 (ACGIH)
PEL-TWA: 0.1 mg (Te)/m3 (OSHA)
TWA 0.1 mg (Te)/m3 (NIOSH)
.
InChIKey
VTLHPSMQDDEFRU-UHFFFAOYSA-N

Safety Information

Symbol(GHS) 

GHS07,GHS08
Signal word 
Danger
Hazard statements 
H317-H332-H360D-H413
Precautionary statements 
P202-P273-P280-P302+P352-P304+P340+P312-P308+P313
Hazard Codes 
T
Risk Statements 
25
Safety Statements 
45-28A
RIDADR 
UN 3288 6.1/PG 3
OEB
D
OEL
TWA: 0.1 mg/m3 [*Note: The REL also applies to other tellurium compounds (as Te) except Tellurium hexafluoride and Bismuth telluride.]
WGK Germany 
3
RTECS 
WY2625000
TSCA 
Yes
HazardClass 
8
PackingGroup 
III
HS Code 
28045000
Toxicity
A member element of group IVa in the Periodic Table with both metallic and non-metallic properties. Tellurium compounds of biological interest include the elemental form, as well as compounds with valences of 12 (telluride), 14 (tellurite), and 16 (tellurate). Commercial applications of tellurium include its use as a coloring agent and as an alloy with other metals. Industrial hazards generally involve the volatile forms including tellurium dioxide and hydrogen telluride rather than the less toxic elemental form. Exposure to potassium tellurite may also occur; this compound is known to cause hemolysis of erythrocytes, probably via its reduction product, telluride. Other non-nervous system effects of exposure to tellurium compounds include weight loss, blue/ black discoloration of skin, and a characteristic garlic breath odor. Animal models have clearly implicated tellurium in induction of specific neuropathological findings. These include its action as a teratogen in the induction of communicating hydrocephalus (treated rats give rise to affected offspring), lipofuscinosis, and peripheral neuropathy.
IDLA
25 mg Te/m3

Use

Small amounts of tellurium are added to stainless steel and copper to improve their machinability. It enhances the strength and hardness of lead and protects lead from the corrosive action of sulfuric acid. Tellurium also is a strong chilling agent in iron castings. It controls the chill and imparts a tough abrasion resistance to the surface.

13 India supplier list of "Tellurium"

  • Product Name:Tellurium
  • Products Intro:Brand:sigma aldrich | Product Number:452378 | Purity:shot,1-2?mm,99.999%tracemetalsbasis
  • Company Type: Trader
  • Country/Region: Bangalore,INDIA
  • Product Name:Tellurium powder 99%
  • Products Intro:Brand:Glrinnovations | OriginalID:GLR19.020372
  • Company Type: Trader
  • Country/Region: New Delhi,INDIA
  • Product Name:Tellurium
  • Company Type: Trader
  • Country/Region: Mumbai,INDIA
  • Product Name:Tellurium
  • Company Type: Trader
  • Country/Region: New Delhi,INDIA
  • Product Name:TelluriumMetalpowder
  • Products Intro:Brand:clearsynth | Product Number:CS-EP-00523
  • Company Type: Trader
  • Country/Region: Hyderabad,INDIA
  • Product Name:Tellurium Metal
  • Company Type: Reagent
  • Country/Region: Mumbai,INDIA
  • Product Name:Tellurium Powder
  • Company Type: Reagent
  • Country/Region: Mumbai,INDIA
  • Product Name:Tellurium
  • Company Type: Reagent
  • Country/Region: Mumbai,INDIA
  • Product Name:Tellurium Metal Powder
  • Company Type: Reagent
  • Country/Region: Mumbai,INDIA
  • Product Name:Tellurium
  • Company Type: Reagent
  • Country/Region: Maharashtra,INDIA

Tellurium Related Search:

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