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Hydrogen selenide(H2Se) (7783-07-5)

Identification
Name:Hydrogen selenide(H2Se)
Synonyms:Dihydrogenmonoselenide; Dihydrogen selenide; Hydrogen selenide; NSC 605850; NSC 605851;NSC 605852; Selane; Selenium dihydride; Selenium hydride; Selenium hydride(SeH2)
CAS:7783-07-5
EINECS: 231-978-9
Molecular Formula: H2Se
Molecular Weight: 80.98
InChI: InChI=1/H2Se/h1H2
Molecular Structure: (H2Se) Dihydrogenmonoselenide; Dihydrogen selenide; Hydrogen selenide; NSC 605850; NSC 605851;NSC 605852; S...
Properties
Transport:2202
Flash Point: <-50
Density:2.12
Stability:Stable. Highly flammable. Readily forms explosive mixtures with air. Incompatible with oxidizing agents, acids, water, halogenated hydrocarbons.
Water Solubility:12,700 mg l-1
Solubility:12,700mgl-1
Appearance:colourless gas with a very unpleasant smell
Specification:

 Hydrogen Selenide (CAS NO.7783-07-5) is a colourless gas with a very unpleasant smell.
Air & Water Reactions: Highly flammable. Soluble in water.
Reactivity Profile: It is a colorless, flammable gas of unpleasant odor, a deadly poison by inhalation. It forms explosive mixtures with air. It reacts vigorously with strong oxidizing reagents, e.g., hydrogen peroxide, nitric acid [Sax, 9th ed., 1996, p.1843].
Health Hazard: It is a hazardous compound which can cause damage to the lungs and liver. Those experiencing dermatitis, chronic bronchitis, or any form of skin allergy or respiratory tract infection are at a greater risk.
Fire Hazard: It is extremely flammable; may be ignited by heat, sparks, or flames. Vapors may travel to a source of ignition and flash back. Container may explode in heat of fire. It is dangerous and forms explosive mixtures with air.It can decompose into toxic fumes. Incompatible with acid, water, halogenated hydrocarbons, oxidizers, hydrogen peroxide, and nitric acid. It should be stored out of the direct rays of the sun. Keep away from heat and flames.

Report:

Selenium and its compounds are on the Community Right-To-Know List. EPA Extremely Hazardous Substances List. Reported in EPA TSCA Inventory.

Packinggroup: Z01
Flash Point: <-50
Color: SELENIUM EXISTS IN SEVERAL ALLOTROPIC FORMS. 3 ARE GENERALLY RECOGNIZED ... SELENIUM CAN BE PREPD WITH EITHER AMORPHOUS OR CRYSTALLINE STRUCTURE. ... AMORPHOUS IS EITHER RED, IN POWDER FORM OR BLACK, IN VITREOUS FORM. CRYSTALLINE MONOCLINIC PRISM IS DEEP RED; CRYSTALLINE HEXAGONAL FORM, THE MOST STABLE VARIETY, IS A METALLIC GRAY.
Safety Data
Hazard Symbols reacts violently with oxidizing materials. Toxic by inhalation, strong irritant to skin, damaging to lungs and liver. TLV: 0.05 
 

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