Hydrogen selenide - H2Se
This page gathers information on hydrogen selenide or selenium hydride (H2Se): appropriate detection means - H2Se gas detector - and proper respiratory protective equipment (gas mask or powered air purifying respirator with type B gas filter).
Hydrogen selenide properties (H2Se)
Hydrogen selenide (H2Se) – also known as selenium hydride – is commonly used in selenium compounds synthesis. It can also be found in many industrial applications like electronics (production of components), the steel industry (alloy preparation), glass or paint industries (pigmentation), rubber production (vulcanization) or in copper refining.
|CAS||VME (8 heures)||VLE (15 minutes)||LIE||IP||Densité / Air||Filtre / ARI|
|7783-07-5||0.02 ppm||0.05 ppm||-||9.88||2.8||B|
Hydrogen selenide effects on health
Hydrogen selenide (H2Se) is an inorganic compound that can irritate the eyes, digestive and breathing systems. This is the most toxic selenium compound with a TWA (time-weighted average) value set at 0.05 ppm. Even at very low concentrations, this compound features a very irritating horseradish-like smell that evolves into a rotten egg smell at higher concentrations.
H2Se gas detector - Hydrogen selenium
Hydrogen sulfide respiratory protection - H2Se
As hydrogen selenide is very irritant, it is recommended to wear a full face mask for short interventions or a much more comfortable PAPR equipped with a type B filter. For higher concentration levels exceeding 60 times the OEL, a self-contained breathing apparatus (SCBA) is mandatory.