Method for removal of phosgene from boron trichloride

Patent · Sat Jan 01 00:00:00 EST 1983

OSTI ID:864704

Freund, Samuel M ^[1]

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1. Santa Fe, NM

Selective ultraviolet photolysis using an unfiltered mercury arc lamp has been used to substantially reduce the phosgene impurity in a mixture of boron trichloride and phosgene. Infrared spectrophotometric analysis of the sample before and after irradiation shows that is is possible to highly purify commercially available boron trichloride with this method.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• Assignee: Freund, Samuel M. (Santa Fe, NM)
• Patent Number(s): US 4405423
• OSTI ID: 864704
• Country of Publication: United States
• Language: English

Related Subjects

method
removal
phosgene
boron
trichloride
selective
ultraviolet
photolysis
unfiltered
mercury
lamp
substantially
reduce
impurity
mixture
infrared
spectrophotometric
analysis
sample
irradiation
highly
purify
commercially
available
boron trichloride
commercially available
substantially reduce
ultraviolet photolysis
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