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Title: Method for removal of phosgene from boron trichloride

Abstract

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 it is possible to highly purify commercially available boron trichloride with this method. 5 figs.

Inventors:
Issue Date:
OSTI Identifier:
7255781
Patent Number(s):
4405423 A
Application Number:
PPN: US 6-299233
Assignee:
PTO; EDB-94-124858
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Resource Relation:
Patent File Date: 3 Sep 1981
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; BORON CHLORIDES; PURIFICATION; PHOSGENE; PHOTOLYSIS; SPECTROPHOTOMETRY; ULTRAVIOLET RADIATION; BORON COMPOUNDS; CARBONIC ACID DERIVATIVES; CHEMICAL REACTIONS; CHLORIDES; CHLORINE COMPOUNDS; DECOMPOSITION; ELECTROMAGNETIC RADIATION; HALIDES; HALOGEN COMPOUNDS; ORGANIC CHLORINE COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; PHOTOCHEMICAL REACTIONS; RADIATIONS; 400500* - Photochemistry

Citation Formats

Freund, S.M. Method for removal of phosgene from boron trichloride. United States: N. p., 1983. Web.
Freund, S.M. Method for removal of phosgene from boron trichloride. United States.
Freund, S.M. Tue . "Method for removal of phosgene from boron trichloride". United States.
@article{osti_7255781,
title = {Method for removal of phosgene from boron trichloride},
author = {Freund, S.M.},
abstractNote = {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 it is possible to highly purify commercially available boron trichloride with this method. 5 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1983},
month = {9}
}