From Wikipedia, the free encyclopedia
Gallium(III) selenide
Names
Other names
gallium triselenide
Identifiers
ChemSpider
ECHA InfoCard 100.031.527 Edit this at Wikidata
EC Number
  • 234-693-8
PubChem CID
Properties
Ga2Se3
Molar mass 376.33 g/mol
Appearance reddish-black crystals
Odor slight garlic odor
Density 4.92 g/cm3
Melting point 1,020 °C (1,870 °F; 1,290 K)
decomposition
Hazards
GHS labelling:
GHS06: Toxic GHS08: Health hazard GHS09: Environmental hazard
Danger
H301, H330, H373, H410
P260, P264, P270, P271, P273, P284, P301+P310, P304+P340, P310, P314, P320, P321, P330, P391, P403+P233, P405, P501
NFPA 704 (fire diamond)
NFPA 704 four-colored diamond Health 3: Short exposure could cause serious temporary or residual injury. E.g. chlorine gas Flammability 0: Will not burn. E.g. water Instability 1: Normally stable, but can become unstable at elevated temperatures and pressures. E.g. calcium Special hazards (white): no code
3
0
1
Related compounds
Other anions
Gallium(III) oxide, Gallium(III) sulfide, Gallium tribromide, Gallium(III) telluride
Other cations
Aluminium(III) selenide, Indium(III) selenide
Related compounds
Gallium monoselenide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY  verify ( what is checkY☒N ?)

Gallium(III) selenide ( Ga2 Se3) is a chemical compound. It has a defect sphalerite (cubic form of ZnS) structure. [1] It is a p-type semiconductor [2]

It can be formed by union of the elements. It hydrolyses slowly in water and quickly in mineral acids to form toxic hydrogen selenide gas. The reducing capabilities of the selenide ion make it vulnerable to oxidizing agents. It is advised therefore that it not come into contact with bases.[ citation needed]

References

  1. ^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN  978-0-08-037941-8.
  2. ^ Temperature dependence of electrical conductivity and Hall effect of Ga2Se3 single crystal, A. E. Belal, Dr. H. A. El-shaikh, I. A. Ashraf, Crystal Research and Technology, 30, 1, 135 - 139


From Wikipedia, the free encyclopedia
Gallium(III) selenide
Names
Other names
gallium triselenide
Identifiers
ChemSpider
ECHA InfoCard 100.031.527 Edit this at Wikidata
EC Number
  • 234-693-8
PubChem CID
Properties
Ga2Se3
Molar mass 376.33 g/mol
Appearance reddish-black crystals
Odor slight garlic odor
Density 4.92 g/cm3
Melting point 1,020 °C (1,870 °F; 1,290 K)
decomposition
Hazards
GHS labelling:
GHS06: Toxic GHS08: Health hazard GHS09: Environmental hazard
Danger
H301, H330, H373, H410
P260, P264, P270, P271, P273, P284, P301+P310, P304+P340, P310, P314, P320, P321, P330, P391, P403+P233, P405, P501
NFPA 704 (fire diamond)
NFPA 704 four-colored diamond Health 3: Short exposure could cause serious temporary or residual injury. E.g. chlorine gas Flammability 0: Will not burn. E.g. water Instability 1: Normally stable, but can become unstable at elevated temperatures and pressures. E.g. calcium Special hazards (white): no code
3
0
1
Related compounds
Other anions
Gallium(III) oxide, Gallium(III) sulfide, Gallium tribromide, Gallium(III) telluride
Other cations
Aluminium(III) selenide, Indium(III) selenide
Related compounds
Gallium monoselenide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY  verify ( what is checkY☒N ?)

Gallium(III) selenide ( Ga2 Se3) is a chemical compound. It has a defect sphalerite (cubic form of ZnS) structure. [1] It is a p-type semiconductor [2]

It can be formed by union of the elements. It hydrolyses slowly in water and quickly in mineral acids to form toxic hydrogen selenide gas. The reducing capabilities of the selenide ion make it vulnerable to oxidizing agents. It is advised therefore that it not come into contact with bases.[ citation needed]

References

  1. ^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN  978-0-08-037941-8.
  2. ^ Temperature dependence of electrical conductivity and Hall effect of Ga2Se3 single crystal, A. E. Belal, Dr. H. A. El-shaikh, I. A. Ashraf, Crystal Research and Technology, 30, 1, 135 - 139



Videos

Youtube | Vimeo | Bing

Websites

Google | Yahoo | Bing

Encyclopedia

Google | Yahoo | Bing

Facebook