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SEMA Gases

Phosphine (PH3) Calibration Gas

Phosphine is the compound with the chemical formula PH3. It is a colorless, flammable, toxic gas and is classed as a pnictogen hydride.

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Available sizes 34L, 58L, 110L
Certification tolerance +/- 10%
Production tolerance +/- 20%
Stability 12 months

Phosphine is the compound with the chemical formula PH3. It is a colorless, flammable, toxic gas and is classed as a pnictogen hydride. Pure phosphine is odorless, but technical grade samples have a highly unpleasant odor like garlic or rotting fish, due to the presence of substituted phosphine and diphosphane (P2H4). With traces of P2H4 present, PH3 is spontaneously flammable in air, burning with a luminous flame. Phosphines are also a group of organophosphorus compounds with the formula R3P (R = organic derivative). Organophosphines are important in catalysts where they complex to various metal ions; complexes derived from a chiral phosphine can catalyze reactions to give chiral, enantioenriched products.

 

34L 58L 110L Cert. tol. Prod. tol. Stability
(months)
0.5 ppm Phosphine // Nitrogen Available Available Available +/- 10% +/- 20% 12
5 ppm Phosphine // Nitrogen Available Available Available +/- 10% +/- 20% 12
10 ppm Phosphine // Nitrogen Available Available Available +/- 10% +/- 20% 12
SEMA Gases leaflet SEMA Gases leaflet_A4

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