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Hydrogen selenide

search CAS: 7783-07-5 Element: selenide Hydrogen

Identification

CAS number
7783-07-5
Chemical Name:
Hydrogen selenide
Molecular Formula:
H2Se
EINECS:
231-978-9
Synonyms:
seleniumhydride ; selenwasserstoff ; hydrogen selenide(h2se) ; nsc 605852 ; selenium dihydride ; electronic e-2 ; h2se ; selenium hydride ; dihydrogenmonoselenide ; selenium hydride(seh2) ; dihydrogen selenide ; hydrogeneselenie ; electronice-2 ; nsc 605850 ; hydrogen selenide ; selane ; [seh2] ; chebi:16503 ; nsc 605851

Product Specifications

Molecular Weight:
80.98 g·mol−1
Density:
2.12
Melting point:
-65.73°C
Boiling point:
-41.3°C
Solubility:
12,700mgl-1
Physical Description:
colourless gas with a very unpleasant smell

Safety Information

A deadly poison by inhalation. Very poisonous irritant to skin, eyes, and mucous membranes. Causes central nervous system effects in humans. An allergen. Can cause damage to the lungs and liver as well as conjunctivitis. It has been found that repeated exposures to concentrations of 0.3 ppm prove fatal to experimental animals by causing a pneumonitis, as well as injury to the liver and spleen. Causes garlic odor of breath, dizziness, nausea. Concentrations of 0.3 ppm are readily detected by odor, but there is no noticeable irritant effect at that level. Concentrations of 1.5 ppm or higher are strongly irritating to the eyes and nasal passages.As in the case of hydrogen sulfide, the odor of hydrogen selenide in concentrations below 1 ppm disappears rapidly because of olfactory fatigue. The odor and irritating effects do not offer a dependable warning to workers who may be exposed to gradually increasing amounts and therefore become used to it. Due to its extreme toxicity and irritating effects, it seldom is allowed to reach a concentration in which it is flammable in air. Very little data are available on possible chronic effects of this material, but it is logical to assume that when the concentration of this gas is low enough to avoid the irritant effects, only the systemic effects will be noticeable.Dangerous fire hazard when exposed to heat or flame; will react vigorously with powerful oxidizing agents, such as H2O2, HNO3. Dangerous; forms explosive mixtures with air; keep away from heat and open flame. See also SELENIUM COMPOUNDS and HYDRIDES.
Hazard Classes:
2.3
Hazard Symbols:
Dangerous fire and explosion risk; reacts violently with oxidizing materials. Toxic by inhalation, strong irritant to skin, damaging to lungs and liver. TLV: 0.05 ppm (as selenium).

Europe standard Hazard pictograms, code and definition
Hazardous Substances Data:
Non-Regulated Material ¹
RID / ADR :
2202

Suppliers

Global Hydrogen selenide Suppliers : Germany (1) Belgium (1)
SupplierPhoneFaxCountryInquiry
Order
Chemos GmbH & Co. KG +49-9402-9336 0 +49-9402-933 613 Germany Get price
L´Air Liquide Belge S.A. +32-4-349 8989 +32-4-341 2070 Belgium Get price

Former or previous provider

The following companies had been manufactured successfully in the past or were listed as an excellent supplier in our directory.
Air Products Chemicals Europe B.V. ( NL-3502 GD Utrecht The Netherlands ) | Praxair Espana S.L. ( 28020 Madrid Spain ) | Air Products and Chemicals, Inc. ( Allentown, PA 18195-1501 USA )
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