Method for supplying phosphorous vapor

Details Method for supplying phosphorous vapor Method for supplying phosphorous vapor

1995-03-29

1996-12-31

Langel, Wayne

Chemistry: physical processes

Physical processes

Sublimation

423322, B01D 700, C01B 2502

Patent

active

055889697

ABSTRACT:
In accordance with the invention, phosphorous vapor is provided by in situ conversion of red phosphorous to white phosphorous and permitting the flow of vapor from said white phosphorous. The conversion is effected in a low pressure cell having a high temperature region for evaporating red phosphorous and a low temperature region for condensing the resulting vapor into white phosphorous. At room temperature equilibrium, the vapor pressure is dominated by the white phosphorous.

REFERENCES:
patent: 4618345 (1986-10-01), Kuck et al.

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