Phosphine Detection

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PHOSPHINE (PH3)

Phosphine is the common name for Phosphorus Trihydride (PH3), also known as phosphane and, occasionally, phosphamine. It is a colorless, flammable gas with a boiling point of -88 °C at standard pressure.

Pure Phosphine is odourless, but technical grade Phosphine has a highly unpleasant odor like garlic or rotting fish, due to the presence of substituted Phosphine and Diphosphine (P2H4). Phosphine is highly toxic; it kills at low concentrations. Because of this, the gas is used for pest control by fumigation.

Phosphine is also used as a dopant in the semiconductor industry, and a precursor for the deposition of compound semiconductors. Recently high purity tertiary butyl phosphine (TBP) has been developed as a less hazardous liquid alternative to highly toxic phosphine gas, for application in Metalorganic Vapor Phase Epitaxy (MOVPE) of III-V compound semiconductors.

An Phosphine (PH3) detector can be used to measure the concentration in the air. There are many gas detectors on the market, Airmet can help you selecting the correct model for you application. Give us a call or use the product selector below.

Gas Specification 

   > CAS nr. 7803-51-2
   > Relative density: 1.17
   > Standard Range: 0 - 5 ppm
   > Low Alarm Level: 0.3 ppm
   > High Alarm Level: 1.0 ppm 

MSDS Sheet

1 - 20 ppm Phosphine / N2    (pdf)
5 - 3999 ppm Phosphine / N2    (pdf)

 
 
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