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}
}
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