Detection of boron impurities in chlorosilanes

Details Detection of boron impurities in chlorosilanes Detection of boron impurities in chlorosilanes

1982-09-21

1985-07-16

Richman, Barry S.

Chemistry: analytical and immunological testing

Silicon containing

423264, 423292, 423341, 436124, 436164, 436178, 436182, G01N 128, G01N 2178

Patent

active

045297070

ABSTRACT:
A method for preparing a chlorosilane sample to enable colorimetric detection of the presence of minute amounts of boron impurities is provided. Detection of boron impurities below five parts per billion is contemplated.

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patent: 4042331 (1977-08-01), Schmidt et al.
patent: 4409195 (1983-10-01), Darnell et al.
Marczenko, Chemia Analityczna, vol. 14, pp. 1331-1338, 1969.
McCusker et al., "Reactions of Haloboranes with Organosiloxanes", 1957.
Churbanov et al., "Chemical Abstracts", vol. 64, #20175a, 1966.
Vecsenyes, "Chemical Abstracts", vol. 65, #19296h, 1966.
Haas et al., "Anal. Chem.", vol. 36:1, pp. 245-246, 1964.

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